Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 1 | /************************************************* |
| 2 | * Perl-Compatible Regular Expressions * |
| 3 | *************************************************/ |
| 4 | |
| 5 | /* PCRE is a library of functions to support regular expressions whose syntax |
| 6 | and semantics are as close as possible to those of the Perl 5 language. |
| 7 | |
| 8 | Written by Philip Hazel |
| 9 | This module by Zoltan Herczeg |
| 10 | Original API code Copyright (c) 1997-2012 University of Cambridge |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 11 | New API code Copyright (c) 2016-2021 University of Cambridge |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 12 | |
| 13 | ----------------------------------------------------------------------------- |
| 14 | Redistribution and use in source and binary forms, with or without |
| 15 | modification, are permitted provided that the following conditions are met: |
| 16 | |
| 17 | * Redistributions of source code must retain the above copyright notice, |
| 18 | this list of conditions and the following disclaimer. |
| 19 | |
| 20 | * Redistributions in binary form must reproduce the above copyright |
| 21 | notice, this list of conditions and the following disclaimer in the |
| 22 | documentation and/or other materials provided with the distribution. |
| 23 | |
| 24 | * Neither the name of the University of Cambridge nor the names of its |
| 25 | contributors may be used to endorse or promote products derived from |
| 26 | this software without specific prior written permission. |
| 27 | |
| 28 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| 29 | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 30 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 31 | ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| 32 | LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 33 | CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 34 | SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 35 | INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 36 | CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 37 | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 38 | POSSIBILITY OF SUCH DAMAGE. |
| 39 | ----------------------------------------------------------------------------- |
| 40 | */ |
| 41 | |
| 42 | #ifdef HAVE_CONFIG_H |
| 43 | #include "config.h" |
| 44 | #endif |
| 45 | |
| 46 | #include "pcre2_internal.h" |
| 47 | |
| 48 | #ifdef SUPPORT_JIT |
| 49 | |
| 50 | /* All-in-one: Since we use the JIT compiler only from here, |
| 51 | we just include it. This way we don't need to touch the build |
| 52 | system files. */ |
| 53 | |
| 54 | #define SLJIT_CONFIG_AUTO 1 |
| 55 | #define SLJIT_CONFIG_STATIC 1 |
| 56 | #define SLJIT_VERBOSE 0 |
| 57 | |
| 58 | #ifdef PCRE2_DEBUG |
| 59 | #define SLJIT_DEBUG 1 |
| 60 | #else |
| 61 | #define SLJIT_DEBUG 0 |
| 62 | #endif |
| 63 | |
| 64 | #define SLJIT_MALLOC(size, allocator_data) pcre2_jit_malloc(size, allocator_data) |
| 65 | #define SLJIT_FREE(ptr, allocator_data) pcre2_jit_free(ptr, allocator_data) |
| 66 | |
| 67 | static void * pcre2_jit_malloc(size_t size, void *allocator_data) |
| 68 | { |
| 69 | pcre2_memctl *allocator = ((pcre2_memctl*)allocator_data); |
| 70 | return allocator->malloc(size, allocator->memory_data); |
| 71 | } |
| 72 | |
| 73 | static void pcre2_jit_free(void *ptr, void *allocator_data) |
| 74 | { |
| 75 | pcre2_memctl *allocator = ((pcre2_memctl*)allocator_data); |
| 76 | allocator->free(ptr, allocator->memory_data); |
| 77 | } |
| 78 | |
| 79 | #include "sljit/sljitLir.c" |
| 80 | |
| 81 | #if defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED |
| 82 | #error Unsupported architecture |
| 83 | #endif |
| 84 | |
| 85 | /* Defines for debugging purposes. */ |
| 86 | |
| 87 | /* 1 - Use unoptimized capturing brackets. |
| 88 | 2 - Enable capture_last_ptr (includes option 1). */ |
| 89 | /* #define DEBUG_FORCE_UNOPTIMIZED_CBRAS 2 */ |
| 90 | |
| 91 | /* 1 - Always have a control head. */ |
| 92 | /* #define DEBUG_FORCE_CONTROL_HEAD 1 */ |
| 93 | |
| 94 | /* Allocate memory for the regex stack on the real machine stack. |
| 95 | Fast, but limited size. */ |
| 96 | #define MACHINE_STACK_SIZE 32768 |
| 97 | |
| 98 | /* Growth rate for stack allocated by the OS. Should be the multiply |
| 99 | of page size. */ |
| 100 | #define STACK_GROWTH_RATE 8192 |
| 101 | |
| 102 | /* Enable to check that the allocation could destroy temporaries. */ |
| 103 | #if defined SLJIT_DEBUG && SLJIT_DEBUG |
| 104 | #define DESTROY_REGISTERS 1 |
| 105 | #endif |
| 106 | |
| 107 | /* |
| 108 | Short summary about the backtracking mechanism empolyed by the jit code generator: |
| 109 | |
| 110 | The code generator follows the recursive nature of the PERL compatible regular |
| 111 | expressions. The basic blocks of regular expressions are condition checkers |
| 112 | whose execute different commands depending on the result of the condition check. |
| 113 | The relationship between the operators can be horizontal (concatenation) and |
| 114 | vertical (sub-expression) (See struct backtrack_common for more details). |
| 115 | |
| 116 | 'ab' - 'a' and 'b' regexps are concatenated |
| 117 | 'a+' - 'a' is the sub-expression of the '+' operator |
| 118 | |
| 119 | The condition checkers are boolean (true/false) checkers. Machine code is generated |
| 120 | for the checker itself and for the actions depending on the result of the checker. |
| 121 | The 'true' case is called as the matching path (expected path), and the other is called as |
| 122 | the 'backtrack' path. Branch instructions are expesive for all CPUs, so we avoid taken |
| 123 | branches on the matching path. |
| 124 | |
| 125 | Greedy star operator (*) : |
| 126 | Matching path: match happens. |
| 127 | Backtrack path: match failed. |
| 128 | Non-greedy star operator (*?) : |
| 129 | Matching path: no need to perform a match. |
| 130 | Backtrack path: match is required. |
| 131 | |
| 132 | The following example shows how the code generated for a capturing bracket |
| 133 | with two alternatives. Let A, B, C, D are arbirary regular expressions, and |
| 134 | we have the following regular expression: |
| 135 | |
| 136 | A(B|C)D |
| 137 | |
| 138 | The generated code will be the following: |
| 139 | |
| 140 | A matching path |
| 141 | '(' matching path (pushing arguments to the stack) |
| 142 | B matching path |
| 143 | ')' matching path (pushing arguments to the stack) |
| 144 | D matching path |
| 145 | return with successful match |
| 146 | |
| 147 | D backtrack path |
| 148 | ')' backtrack path (If we arrived from "C" jump to the backtrack of "C") |
| 149 | B backtrack path |
| 150 | C expected path |
| 151 | jump to D matching path |
| 152 | C backtrack path |
| 153 | A backtrack path |
| 154 | |
| 155 | Notice, that the order of backtrack code paths are the opposite of the fast |
| 156 | code paths. In this way the topmost value on the stack is always belong |
| 157 | to the current backtrack code path. The backtrack path must check |
| 158 | whether there is a next alternative. If so, it needs to jump back to |
| 159 | the matching path eventually. Otherwise it needs to clear out its own stack |
| 160 | frame and continue the execution on the backtrack code paths. |
| 161 | */ |
| 162 | |
| 163 | /* |
| 164 | Saved stack frames: |
| 165 | |
| 166 | Atomic blocks and asserts require reloading the values of private data |
| 167 | when the backtrack mechanism performed. Because of OP_RECURSE, the data |
| 168 | are not necessarly known in compile time, thus we need a dynamic restore |
| 169 | mechanism. |
| 170 | |
| 171 | The stack frames are stored in a chain list, and have the following format: |
| 172 | ([ capturing bracket offset ][ start value ][ end value ])+ ... [ 0 ] [ previous head ] |
| 173 | |
| 174 | Thus we can restore the private data to a particular point in the stack. |
| 175 | */ |
| 176 | |
| 177 | typedef struct jit_arguments { |
| 178 | /* Pointers first. */ |
| 179 | struct sljit_stack *stack; |
| 180 | PCRE2_SPTR str; |
| 181 | PCRE2_SPTR begin; |
| 182 | PCRE2_SPTR end; |
| 183 | pcre2_match_data *match_data; |
| 184 | PCRE2_SPTR startchar_ptr; |
| 185 | PCRE2_UCHAR *mark_ptr; |
| 186 | int (*callout)(pcre2_callout_block *, void *); |
| 187 | void *callout_data; |
| 188 | /* Everything else after. */ |
| 189 | sljit_uw offset_limit; |
| 190 | sljit_u32 limit_match; |
| 191 | sljit_u32 oveccount; |
| 192 | sljit_u32 options; |
| 193 | } jit_arguments; |
| 194 | |
| 195 | #define JIT_NUMBER_OF_COMPILE_MODES 3 |
| 196 | |
| 197 | typedef struct executable_functions { |
| 198 | void *executable_funcs[JIT_NUMBER_OF_COMPILE_MODES]; |
| 199 | void *read_only_data_heads[JIT_NUMBER_OF_COMPILE_MODES]; |
| 200 | sljit_uw executable_sizes[JIT_NUMBER_OF_COMPILE_MODES]; |
| 201 | sljit_u32 top_bracket; |
| 202 | sljit_u32 limit_match; |
| 203 | } executable_functions; |
| 204 | |
| 205 | typedef struct jump_list { |
| 206 | struct sljit_jump *jump; |
| 207 | struct jump_list *next; |
| 208 | } jump_list; |
| 209 | |
| 210 | typedef struct stub_list { |
| 211 | struct sljit_jump *start; |
| 212 | struct sljit_label *quit; |
| 213 | struct stub_list *next; |
| 214 | } stub_list; |
| 215 | |
| 216 | enum frame_types { |
| 217 | no_frame = -1, |
| 218 | no_stack = -2 |
| 219 | }; |
| 220 | |
| 221 | enum control_types { |
| 222 | type_mark = 0, |
| 223 | type_then_trap = 1 |
| 224 | }; |
| 225 | |
| 226 | enum early_fail_types { |
| 227 | type_skip = 0, |
| 228 | type_fail = 1, |
| 229 | type_fail_range = 2 |
| 230 | }; |
| 231 | |
| 232 | typedef int (SLJIT_FUNC *jit_function)(jit_arguments *args); |
| 233 | |
| 234 | /* The following structure is the key data type for the recursive |
| 235 | code generator. It is allocated by compile_matchingpath, and contains |
| 236 | the arguments for compile_backtrackingpath. Must be the first member |
| 237 | of its descendants. */ |
| 238 | typedef struct backtrack_common { |
| 239 | /* Concatenation stack. */ |
| 240 | struct backtrack_common *prev; |
| 241 | jump_list *nextbacktracks; |
| 242 | /* Internal stack (for component operators). */ |
| 243 | struct backtrack_common *top; |
| 244 | jump_list *topbacktracks; |
| 245 | /* Opcode pointer. */ |
| 246 | PCRE2_SPTR cc; |
| 247 | } backtrack_common; |
| 248 | |
| 249 | typedef struct assert_backtrack { |
| 250 | backtrack_common common; |
| 251 | jump_list *condfailed; |
| 252 | /* Less than 0 if a frame is not needed. */ |
| 253 | int framesize; |
| 254 | /* Points to our private memory word on the stack. */ |
| 255 | int private_data_ptr; |
| 256 | /* For iterators. */ |
| 257 | struct sljit_label *matchingpath; |
| 258 | } assert_backtrack; |
| 259 | |
| 260 | typedef struct bracket_backtrack { |
| 261 | backtrack_common common; |
| 262 | /* Where to coninue if an alternative is successfully matched. */ |
| 263 | struct sljit_label *alternative_matchingpath; |
| 264 | /* For rmin and rmax iterators. */ |
| 265 | struct sljit_label *recursive_matchingpath; |
| 266 | /* For greedy ? operator. */ |
| 267 | struct sljit_label *zero_matchingpath; |
| 268 | /* Contains the branches of a failed condition. */ |
| 269 | union { |
| 270 | /* Both for OP_COND, OP_SCOND. */ |
| 271 | jump_list *condfailed; |
| 272 | assert_backtrack *assert; |
| 273 | /* For OP_ONCE. Less than 0 if not needed. */ |
| 274 | int framesize; |
| 275 | /* For brackets with >3 alternatives. */ |
| 276 | struct sljit_put_label *matching_put_label; |
| 277 | } u; |
| 278 | /* Points to our private memory word on the stack. */ |
| 279 | int private_data_ptr; |
| 280 | } bracket_backtrack; |
| 281 | |
| 282 | typedef struct bracketpos_backtrack { |
| 283 | backtrack_common common; |
| 284 | /* Points to our private memory word on the stack. */ |
| 285 | int private_data_ptr; |
| 286 | /* Reverting stack is needed. */ |
| 287 | int framesize; |
| 288 | /* Allocated stack size. */ |
| 289 | int stacksize; |
| 290 | } bracketpos_backtrack; |
| 291 | |
| 292 | typedef struct braminzero_backtrack { |
| 293 | backtrack_common common; |
| 294 | struct sljit_label *matchingpath; |
| 295 | } braminzero_backtrack; |
| 296 | |
| 297 | typedef struct char_iterator_backtrack { |
| 298 | backtrack_common common; |
| 299 | /* Next iteration. */ |
| 300 | struct sljit_label *matchingpath; |
| 301 | union { |
| 302 | jump_list *backtracks; |
| 303 | struct { |
| 304 | unsigned int othercasebit; |
| 305 | PCRE2_UCHAR chr; |
| 306 | BOOL enabled; |
| 307 | } charpos; |
| 308 | } u; |
| 309 | } char_iterator_backtrack; |
| 310 | |
| 311 | typedef struct ref_iterator_backtrack { |
| 312 | backtrack_common common; |
| 313 | /* Next iteration. */ |
| 314 | struct sljit_label *matchingpath; |
| 315 | } ref_iterator_backtrack; |
| 316 | |
| 317 | typedef struct recurse_entry { |
| 318 | struct recurse_entry *next; |
| 319 | /* Contains the function entry label. */ |
| 320 | struct sljit_label *entry_label; |
| 321 | /* Contains the function entry label. */ |
| 322 | struct sljit_label *backtrack_label; |
| 323 | /* Collects the entry calls until the function is not created. */ |
| 324 | jump_list *entry_calls; |
| 325 | /* Collects the backtrack calls until the function is not created. */ |
| 326 | jump_list *backtrack_calls; |
| 327 | /* Points to the starting opcode. */ |
| 328 | sljit_sw start; |
| 329 | } recurse_entry; |
| 330 | |
| 331 | typedef struct recurse_backtrack { |
| 332 | backtrack_common common; |
| 333 | /* Return to the matching path. */ |
| 334 | struct sljit_label *matchingpath; |
| 335 | /* Recursive pattern. */ |
| 336 | recurse_entry *entry; |
| 337 | /* Pattern is inlined. */ |
| 338 | BOOL inlined_pattern; |
| 339 | } recurse_backtrack; |
| 340 | |
| 341 | #define OP_THEN_TRAP OP_TABLE_LENGTH |
| 342 | |
| 343 | typedef struct then_trap_backtrack { |
| 344 | backtrack_common common; |
| 345 | /* If then_trap is not NULL, this structure contains the real |
| 346 | then_trap for the backtracking path. */ |
| 347 | struct then_trap_backtrack *then_trap; |
| 348 | /* Points to the starting opcode. */ |
| 349 | sljit_sw start; |
| 350 | /* Exit point for the then opcodes of this alternative. */ |
| 351 | jump_list *quit; |
| 352 | /* Frame size of the current alternative. */ |
| 353 | int framesize; |
| 354 | } then_trap_backtrack; |
| 355 | |
| 356 | #define MAX_N_CHARS 12 |
| 357 | #define MAX_DIFF_CHARS 5 |
| 358 | |
| 359 | typedef struct fast_forward_char_data { |
| 360 | /* Number of characters in the chars array, 255 for any character. */ |
| 361 | sljit_u8 count; |
| 362 | /* Number of last UTF-8 characters in the chars array. */ |
| 363 | sljit_u8 last_count; |
| 364 | /* Available characters in the current position. */ |
| 365 | PCRE2_UCHAR chars[MAX_DIFF_CHARS]; |
| 366 | } fast_forward_char_data; |
| 367 | |
| 368 | #define MAX_CLASS_RANGE_SIZE 4 |
| 369 | #define MAX_CLASS_CHARS_SIZE 3 |
| 370 | |
| 371 | typedef struct compiler_common { |
| 372 | /* The sljit ceneric compiler. */ |
| 373 | struct sljit_compiler *compiler; |
| 374 | /* Compiled regular expression. */ |
| 375 | pcre2_real_code *re; |
| 376 | /* First byte code. */ |
| 377 | PCRE2_SPTR start; |
| 378 | /* Maps private data offset to each opcode. */ |
| 379 | sljit_s32 *private_data_ptrs; |
| 380 | /* Chain list of read-only data ptrs. */ |
| 381 | void *read_only_data_head; |
| 382 | /* Tells whether the capturing bracket is optimized. */ |
| 383 | sljit_u8 *optimized_cbracket; |
| 384 | /* Tells whether the starting offset is a target of then. */ |
| 385 | sljit_u8 *then_offsets; |
| 386 | /* Current position where a THEN must jump. */ |
| 387 | then_trap_backtrack *then_trap; |
| 388 | /* Starting offset of private data for capturing brackets. */ |
| 389 | sljit_s32 cbra_ptr; |
| 390 | /* Output vector starting point. Must be divisible by 2. */ |
| 391 | sljit_s32 ovector_start; |
| 392 | /* Points to the starting character of the current match. */ |
| 393 | sljit_s32 start_ptr; |
| 394 | /* Last known position of the requested byte. */ |
| 395 | sljit_s32 req_char_ptr; |
| 396 | /* Head of the last recursion. */ |
| 397 | sljit_s32 recursive_head_ptr; |
| 398 | /* First inspected character for partial matching. |
| 399 | (Needed for avoiding zero length partial matches.) */ |
| 400 | sljit_s32 start_used_ptr; |
| 401 | /* Starting pointer for partial soft matches. */ |
| 402 | sljit_s32 hit_start; |
| 403 | /* Pointer of the match end position. */ |
| 404 | sljit_s32 match_end_ptr; |
| 405 | /* Points to the marked string. */ |
| 406 | sljit_s32 mark_ptr; |
| 407 | /* Recursive control verb management chain. */ |
| 408 | sljit_s32 control_head_ptr; |
| 409 | /* Points to the last matched capture block index. */ |
| 410 | sljit_s32 capture_last_ptr; |
| 411 | /* Fast forward skipping byte code pointer. */ |
| 412 | PCRE2_SPTR fast_forward_bc_ptr; |
| 413 | /* Locals used by fast fail optimization. */ |
| 414 | sljit_s32 early_fail_start_ptr; |
| 415 | sljit_s32 early_fail_end_ptr; |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 416 | /* Variables used by recursive call generator. */ |
| 417 | sljit_s32 recurse_bitset_size; |
| 418 | uint8_t *recurse_bitset; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 419 | |
| 420 | /* Flipped and lower case tables. */ |
| 421 | const sljit_u8 *fcc; |
| 422 | sljit_sw lcc; |
| 423 | /* Mode can be PCRE2_JIT_COMPLETE and others. */ |
| 424 | int mode; |
| 425 | /* TRUE, when empty match is accepted for partial matching. */ |
| 426 | BOOL allow_empty_partial; |
| 427 | /* TRUE, when minlength is greater than 0. */ |
| 428 | BOOL might_be_empty; |
| 429 | /* \K is found in the pattern. */ |
| 430 | BOOL has_set_som; |
| 431 | /* (*SKIP:arg) is found in the pattern. */ |
| 432 | BOOL has_skip_arg; |
| 433 | /* (*THEN) is found in the pattern. */ |
| 434 | BOOL has_then; |
| 435 | /* (*SKIP) or (*SKIP:arg) is found in lookbehind assertion. */ |
| 436 | BOOL has_skip_in_assert_back; |
| 437 | /* Quit is redirected by recurse, negative assertion, or positive assertion in conditional block. */ |
| 438 | BOOL local_quit_available; |
| 439 | /* Currently in a positive assertion. */ |
| 440 | BOOL in_positive_assertion; |
| 441 | /* Newline control. */ |
| 442 | int nltype; |
| 443 | sljit_u32 nlmax; |
| 444 | sljit_u32 nlmin; |
| 445 | int newline; |
| 446 | int bsr_nltype; |
| 447 | sljit_u32 bsr_nlmax; |
| 448 | sljit_u32 bsr_nlmin; |
| 449 | /* Dollar endonly. */ |
| 450 | int endonly; |
| 451 | /* Tables. */ |
| 452 | sljit_sw ctypes; |
| 453 | /* Named capturing brackets. */ |
| 454 | PCRE2_SPTR name_table; |
| 455 | sljit_sw name_count; |
| 456 | sljit_sw name_entry_size; |
| 457 | |
| 458 | /* Labels and jump lists. */ |
| 459 | struct sljit_label *partialmatchlabel; |
| 460 | struct sljit_label *quit_label; |
| 461 | struct sljit_label *abort_label; |
| 462 | struct sljit_label *accept_label; |
| 463 | struct sljit_label *ff_newline_shortcut; |
| 464 | stub_list *stubs; |
| 465 | recurse_entry *entries; |
| 466 | recurse_entry *currententry; |
| 467 | jump_list *partialmatch; |
| 468 | jump_list *quit; |
| 469 | jump_list *positive_assertion_quit; |
| 470 | jump_list *abort; |
| 471 | jump_list *failed_match; |
| 472 | jump_list *accept; |
| 473 | jump_list *calllimit; |
| 474 | jump_list *stackalloc; |
| 475 | jump_list *revertframes; |
| 476 | jump_list *wordboundary; |
| 477 | jump_list *anynewline; |
| 478 | jump_list *hspace; |
| 479 | jump_list *vspace; |
| 480 | jump_list *casefulcmp; |
| 481 | jump_list *caselesscmp; |
| 482 | jump_list *reset_match; |
| 483 | BOOL unset_backref; |
| 484 | BOOL alt_circumflex; |
| 485 | #ifdef SUPPORT_UNICODE |
| 486 | BOOL utf; |
| 487 | BOOL invalid_utf; |
| 488 | BOOL ucp; |
| 489 | /* Points to saving area for iref. */ |
| 490 | sljit_s32 iref_ptr; |
| 491 | jump_list *getucd; |
| 492 | jump_list *getucdtype; |
| 493 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 494 | jump_list *utfreadchar; |
| 495 | jump_list *utfreadtype8; |
| 496 | jump_list *utfpeakcharback; |
| 497 | #endif |
| 498 | #if PCRE2_CODE_UNIT_WIDTH == 8 || PCRE2_CODE_UNIT_WIDTH == 16 |
| 499 | jump_list *utfreadchar_invalid; |
| 500 | jump_list *utfreadnewline_invalid; |
| 501 | jump_list *utfmoveback_invalid; |
| 502 | jump_list *utfpeakcharback_invalid; |
| 503 | #endif |
| 504 | #endif /* SUPPORT_UNICODE */ |
| 505 | } compiler_common; |
| 506 | |
| 507 | /* For byte_sequence_compare. */ |
| 508 | |
| 509 | typedef struct compare_context { |
| 510 | int length; |
| 511 | int sourcereg; |
| 512 | #if defined SLJIT_UNALIGNED && SLJIT_UNALIGNED |
| 513 | int ucharptr; |
| 514 | union { |
| 515 | sljit_s32 asint; |
| 516 | sljit_u16 asushort; |
| 517 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 518 | sljit_u8 asbyte; |
| 519 | sljit_u8 asuchars[4]; |
| 520 | #elif PCRE2_CODE_UNIT_WIDTH == 16 |
| 521 | sljit_u16 asuchars[2]; |
| 522 | #elif PCRE2_CODE_UNIT_WIDTH == 32 |
| 523 | sljit_u32 asuchars[1]; |
| 524 | #endif |
| 525 | } c; |
| 526 | union { |
| 527 | sljit_s32 asint; |
| 528 | sljit_u16 asushort; |
| 529 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 530 | sljit_u8 asbyte; |
| 531 | sljit_u8 asuchars[4]; |
| 532 | #elif PCRE2_CODE_UNIT_WIDTH == 16 |
| 533 | sljit_u16 asuchars[2]; |
| 534 | #elif PCRE2_CODE_UNIT_WIDTH == 32 |
| 535 | sljit_u32 asuchars[1]; |
| 536 | #endif |
| 537 | } oc; |
| 538 | #endif |
| 539 | } compare_context; |
| 540 | |
| 541 | /* Undefine sljit macros. */ |
| 542 | #undef CMP |
| 543 | |
| 544 | /* Used for accessing the elements of the stack. */ |
| 545 | #define STACK(i) ((i) * (int)sizeof(sljit_sw)) |
| 546 | |
| 547 | #ifdef SLJIT_PREF_SHIFT_REG |
| 548 | #if SLJIT_PREF_SHIFT_REG == SLJIT_R2 |
| 549 | /* Nothing. */ |
| 550 | #elif SLJIT_PREF_SHIFT_REG == SLJIT_R3 |
| 551 | #define SHIFT_REG_IS_R3 |
| 552 | #else |
| 553 | #error "Unsupported shift register" |
| 554 | #endif |
| 555 | #endif |
| 556 | |
| 557 | #define TMP1 SLJIT_R0 |
| 558 | #ifdef SHIFT_REG_IS_R3 |
| 559 | #define TMP2 SLJIT_R3 |
| 560 | #define TMP3 SLJIT_R2 |
| 561 | #else |
| 562 | #define TMP2 SLJIT_R2 |
| 563 | #define TMP3 SLJIT_R3 |
| 564 | #endif |
| 565 | #define STR_PTR SLJIT_R1 |
| 566 | #define STR_END SLJIT_S0 |
| 567 | #define STACK_TOP SLJIT_S1 |
| 568 | #define STACK_LIMIT SLJIT_S2 |
| 569 | #define COUNT_MATCH SLJIT_S3 |
| 570 | #define ARGUMENTS SLJIT_S4 |
| 571 | #define RETURN_ADDR SLJIT_R4 |
| 572 | |
| 573 | #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) |
| 574 | #define HAS_VIRTUAL_REGISTERS 1 |
| 575 | #else |
| 576 | #define HAS_VIRTUAL_REGISTERS 0 |
| 577 | #endif |
| 578 | |
| 579 | /* Local space layout. */ |
| 580 | /* These two locals can be used by the current opcode. */ |
| 581 | #define LOCALS0 (0 * sizeof(sljit_sw)) |
| 582 | #define LOCALS1 (1 * sizeof(sljit_sw)) |
| 583 | /* Two local variables for possessive quantifiers (char1 cannot use them). */ |
| 584 | #define POSSESSIVE0 (2 * sizeof(sljit_sw)) |
| 585 | #define POSSESSIVE1 (3 * sizeof(sljit_sw)) |
| 586 | /* Max limit of recursions. */ |
| 587 | #define LIMIT_MATCH (4 * sizeof(sljit_sw)) |
| 588 | /* The output vector is stored on the stack, and contains pointers |
| 589 | to characters. The vector data is divided into two groups: the first |
| 590 | group contains the start / end character pointers, and the second is |
| 591 | the start pointers when the end of the capturing group has not yet reached. */ |
| 592 | #define OVECTOR_START (common->ovector_start) |
| 593 | #define OVECTOR(i) (OVECTOR_START + (i) * (sljit_sw)sizeof(sljit_sw)) |
| 594 | #define OVECTOR_PRIV(i) (common->cbra_ptr + (i) * (sljit_sw)sizeof(sljit_sw)) |
| 595 | #define PRIVATE_DATA(cc) (common->private_data_ptrs[(cc) - common->start]) |
| 596 | |
| 597 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 598 | #define MOV_UCHAR SLJIT_MOV_U8 |
| 599 | #define IN_UCHARS(x) (x) |
| 600 | #elif PCRE2_CODE_UNIT_WIDTH == 16 |
| 601 | #define MOV_UCHAR SLJIT_MOV_U16 |
| 602 | #define UCHAR_SHIFT (1) |
| 603 | #define IN_UCHARS(x) ((x) * 2) |
| 604 | #elif PCRE2_CODE_UNIT_WIDTH == 32 |
| 605 | #define MOV_UCHAR SLJIT_MOV_U32 |
| 606 | #define UCHAR_SHIFT (2) |
| 607 | #define IN_UCHARS(x) ((x) * 4) |
| 608 | #else |
| 609 | #error Unsupported compiling mode |
| 610 | #endif |
| 611 | |
| 612 | /* Shortcuts. */ |
| 613 | #define DEFINE_COMPILER \ |
| 614 | struct sljit_compiler *compiler = common->compiler |
| 615 | #define OP1(op, dst, dstw, src, srcw) \ |
| 616 | sljit_emit_op1(compiler, (op), (dst), (dstw), (src), (srcw)) |
| 617 | #define OP2(op, dst, dstw, src1, src1w, src2, src2w) \ |
| 618 | sljit_emit_op2(compiler, (op), (dst), (dstw), (src1), (src1w), (src2), (src2w)) |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 619 | #define OP2U(op, src1, src1w, src2, src2w) \ |
| 620 | sljit_emit_op2u(compiler, (op), (src1), (src1w), (src2), (src2w)) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 621 | #define OP_SRC(op, src, srcw) \ |
| 622 | sljit_emit_op_src(compiler, (op), (src), (srcw)) |
| 623 | #define LABEL() \ |
| 624 | sljit_emit_label(compiler) |
| 625 | #define JUMP(type) \ |
| 626 | sljit_emit_jump(compiler, (type)) |
| 627 | #define JUMPTO(type, label) \ |
| 628 | sljit_set_label(sljit_emit_jump(compiler, (type)), (label)) |
| 629 | #define JUMPHERE(jump) \ |
| 630 | sljit_set_label((jump), sljit_emit_label(compiler)) |
| 631 | #define SET_LABEL(jump, label) \ |
| 632 | sljit_set_label((jump), (label)) |
| 633 | #define CMP(type, src1, src1w, src2, src2w) \ |
| 634 | sljit_emit_cmp(compiler, (type), (src1), (src1w), (src2), (src2w)) |
| 635 | #define CMPTO(type, src1, src1w, src2, src2w, label) \ |
| 636 | sljit_set_label(sljit_emit_cmp(compiler, (type), (src1), (src1w), (src2), (src2w)), (label)) |
| 637 | #define OP_FLAGS(op, dst, dstw, type) \ |
| 638 | sljit_emit_op_flags(compiler, (op), (dst), (dstw), (type)) |
| 639 | #define CMOV(type, dst_reg, src, srcw) \ |
| 640 | sljit_emit_cmov(compiler, (type), (dst_reg), (src), (srcw)) |
| 641 | #define GET_LOCAL_BASE(dst, dstw, offset) \ |
| 642 | sljit_get_local_base(compiler, (dst), (dstw), (offset)) |
| 643 | |
| 644 | #define READ_CHAR_MAX 0x7fffffff |
| 645 | |
| 646 | #define INVALID_UTF_CHAR -1 |
| 647 | #define UNASSIGNED_UTF_CHAR 888 |
| 648 | |
| 649 | #if defined SUPPORT_UNICODE |
| 650 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 651 | |
| 652 | #define GETCHARINC_INVALID(c, ptr, end, invalid_action) \ |
| 653 | { \ |
| 654 | if (ptr[0] <= 0x7f) \ |
| 655 | c = *ptr++; \ |
| 656 | else if (ptr + 1 < end && ptr[1] >= 0x80 && ptr[1] < 0xc0) \ |
| 657 | { \ |
| 658 | c = ptr[1] - 0x80; \ |
| 659 | \ |
| 660 | if (ptr[0] >= 0xc2 && ptr[0] <= 0xdf) \ |
| 661 | { \ |
| 662 | c |= (ptr[0] - 0xc0) << 6; \ |
| 663 | ptr += 2; \ |
| 664 | } \ |
| 665 | else if (ptr + 2 < end && ptr[2] >= 0x80 && ptr[2] < 0xc0) \ |
| 666 | { \ |
| 667 | c = c << 6 | (ptr[2] - 0x80); \ |
| 668 | \ |
| 669 | if (ptr[0] >= 0xe0 && ptr[0] <= 0xef) \ |
| 670 | { \ |
| 671 | c |= (ptr[0] - 0xe0) << 12; \ |
| 672 | ptr += 3; \ |
| 673 | \ |
| 674 | if (c < 0x800 || (c >= 0xd800 && c < 0xe000)) \ |
| 675 | { \ |
| 676 | invalid_action; \ |
| 677 | } \ |
| 678 | } \ |
| 679 | else if (ptr + 3 < end && ptr[3] >= 0x80 && ptr[3] < 0xc0) \ |
| 680 | { \ |
| 681 | c = c << 6 | (ptr[3] - 0x80); \ |
| 682 | \ |
| 683 | if (ptr[0] >= 0xf0 && ptr[0] <= 0xf4) \ |
| 684 | { \ |
| 685 | c |= (ptr[0] - 0xf0) << 18; \ |
| 686 | ptr += 4; \ |
| 687 | \ |
| 688 | if (c >= 0x110000 || c < 0x10000) \ |
| 689 | { \ |
| 690 | invalid_action; \ |
| 691 | } \ |
| 692 | } \ |
| 693 | else \ |
| 694 | { \ |
| 695 | invalid_action; \ |
| 696 | } \ |
| 697 | } \ |
| 698 | else \ |
| 699 | { \ |
| 700 | invalid_action; \ |
| 701 | } \ |
| 702 | } \ |
| 703 | else \ |
| 704 | { \ |
| 705 | invalid_action; \ |
| 706 | } \ |
| 707 | } \ |
| 708 | else \ |
| 709 | { \ |
| 710 | invalid_action; \ |
| 711 | } \ |
| 712 | } |
| 713 | |
| 714 | #define GETCHARBACK_INVALID(c, ptr, start, invalid_action) \ |
| 715 | { \ |
| 716 | c = ptr[-1]; \ |
| 717 | if (c <= 0x7f) \ |
| 718 | ptr--; \ |
| 719 | else if (ptr - 1 > start && ptr[-1] >= 0x80 && ptr[-1] < 0xc0) \ |
| 720 | { \ |
| 721 | c -= 0x80; \ |
| 722 | \ |
| 723 | if (ptr[-2] >= 0xc2 && ptr[-2] <= 0xdf) \ |
| 724 | { \ |
| 725 | c |= (ptr[-2] - 0xc0) << 6; \ |
| 726 | ptr -= 2; \ |
| 727 | } \ |
| 728 | else if (ptr - 2 > start && ptr[-2] >= 0x80 && ptr[-2] < 0xc0) \ |
| 729 | { \ |
| 730 | c = c << 6 | (ptr[-2] - 0x80); \ |
| 731 | \ |
| 732 | if (ptr[-3] >= 0xe0 && ptr[-3] <= 0xef) \ |
| 733 | { \ |
| 734 | c |= (ptr[-3] - 0xe0) << 12; \ |
| 735 | ptr -= 3; \ |
| 736 | \ |
| 737 | if (c < 0x800 || (c >= 0xd800 && c < 0xe000)) \ |
| 738 | { \ |
| 739 | invalid_action; \ |
| 740 | } \ |
| 741 | } \ |
| 742 | else if (ptr - 3 > start && ptr[-3] >= 0x80 && ptr[-3] < 0xc0) \ |
| 743 | { \ |
| 744 | c = c << 6 | (ptr[-3] - 0x80); \ |
| 745 | \ |
| 746 | if (ptr[-4] >= 0xf0 && ptr[-4] <= 0xf4) \ |
| 747 | { \ |
| 748 | c |= (ptr[-4] - 0xf0) << 18; \ |
| 749 | ptr -= 4; \ |
| 750 | \ |
| 751 | if (c >= 0x110000 || c < 0x10000) \ |
| 752 | { \ |
| 753 | invalid_action; \ |
| 754 | } \ |
| 755 | } \ |
| 756 | else \ |
| 757 | { \ |
| 758 | invalid_action; \ |
| 759 | } \ |
| 760 | } \ |
| 761 | else \ |
| 762 | { \ |
| 763 | invalid_action; \ |
| 764 | } \ |
| 765 | } \ |
| 766 | else \ |
| 767 | { \ |
| 768 | invalid_action; \ |
| 769 | } \ |
| 770 | } \ |
| 771 | else \ |
| 772 | { \ |
| 773 | invalid_action; \ |
| 774 | } \ |
| 775 | } |
| 776 | |
| 777 | #elif PCRE2_CODE_UNIT_WIDTH == 16 |
| 778 | |
| 779 | #define GETCHARINC_INVALID(c, ptr, end, invalid_action) \ |
| 780 | { \ |
| 781 | if (ptr[0] < 0xd800 || ptr[0] >= 0xe000) \ |
| 782 | c = *ptr++; \ |
| 783 | else if (ptr[0] < 0xdc00 && ptr + 1 < end && ptr[1] >= 0xdc00 && ptr[1] < 0xe000) \ |
| 784 | { \ |
| 785 | c = (((ptr[0] - 0xd800) << 10) | (ptr[1] - 0xdc00)) + 0x10000; \ |
| 786 | ptr += 2; \ |
| 787 | } \ |
| 788 | else \ |
| 789 | { \ |
| 790 | invalid_action; \ |
| 791 | } \ |
| 792 | } |
| 793 | |
| 794 | #define GETCHARBACK_INVALID(c, ptr, start, invalid_action) \ |
| 795 | { \ |
| 796 | c = ptr[-1]; \ |
| 797 | if (c < 0xd800 || c >= 0xe000) \ |
| 798 | ptr--; \ |
| 799 | else if (c >= 0xdc00 && ptr - 1 > start && ptr[-2] >= 0xd800 && ptr[-2] < 0xdc00) \ |
| 800 | { \ |
| 801 | c = (((ptr[-2] - 0xd800) << 10) | (c - 0xdc00)) + 0x10000; \ |
| 802 | ptr -= 2; \ |
| 803 | } \ |
| 804 | else \ |
| 805 | { \ |
| 806 | invalid_action; \ |
| 807 | } \ |
| 808 | } |
| 809 | |
| 810 | |
| 811 | #elif PCRE2_CODE_UNIT_WIDTH == 32 |
| 812 | |
| 813 | #define GETCHARINC_INVALID(c, ptr, end, invalid_action) \ |
| 814 | { \ |
| 815 | if (ptr[0] < 0xd800 || (ptr[0] >= 0xe000 && ptr[0] < 0x110000)) \ |
| 816 | c = *ptr++; \ |
| 817 | else \ |
| 818 | { \ |
| 819 | invalid_action; \ |
| 820 | } \ |
| 821 | } |
| 822 | |
| 823 | #define GETCHARBACK_INVALID(c, ptr, start, invalid_action) \ |
| 824 | { \ |
| 825 | c = ptr[-1]; \ |
| 826 | if (ptr[-1] < 0xd800 || (ptr[-1] >= 0xe000 && ptr[-1] < 0x110000)) \ |
| 827 | ptr--; \ |
| 828 | else \ |
| 829 | { \ |
| 830 | invalid_action; \ |
| 831 | } \ |
| 832 | } |
| 833 | |
| 834 | #endif /* PCRE2_CODE_UNIT_WIDTH == [8|16|32] */ |
| 835 | #endif /* SUPPORT_UNICODE */ |
| 836 | |
| 837 | static PCRE2_SPTR bracketend(PCRE2_SPTR cc) |
| 838 | { |
| 839 | SLJIT_ASSERT((*cc >= OP_ASSERT && *cc <= OP_ASSERTBACK_NA) || (*cc >= OP_ONCE && *cc <= OP_SCOND)); |
| 840 | do cc += GET(cc, 1); while (*cc == OP_ALT); |
| 841 | SLJIT_ASSERT(*cc >= OP_KET && *cc <= OP_KETRPOS); |
| 842 | cc += 1 + LINK_SIZE; |
| 843 | return cc; |
| 844 | } |
| 845 | |
| 846 | static int no_alternatives(PCRE2_SPTR cc) |
| 847 | { |
| 848 | int count = 0; |
| 849 | SLJIT_ASSERT((*cc >= OP_ASSERT && *cc <= OP_ASSERTBACK_NA) || (*cc >= OP_ONCE && *cc <= OP_SCOND)); |
| 850 | do |
| 851 | { |
| 852 | cc += GET(cc, 1); |
| 853 | count++; |
| 854 | } |
| 855 | while (*cc == OP_ALT); |
| 856 | SLJIT_ASSERT(*cc >= OP_KET && *cc <= OP_KETRPOS); |
| 857 | return count; |
| 858 | } |
| 859 | |
| 860 | /* Functions whose might need modification for all new supported opcodes: |
| 861 | next_opcode |
| 862 | check_opcode_types |
| 863 | set_private_data_ptrs |
| 864 | get_framesize |
| 865 | init_frame |
| 866 | get_recurse_data_length |
| 867 | copy_recurse_data |
| 868 | compile_matchingpath |
| 869 | compile_backtrackingpath |
| 870 | */ |
| 871 | |
| 872 | static PCRE2_SPTR next_opcode(compiler_common *common, PCRE2_SPTR cc) |
| 873 | { |
| 874 | SLJIT_UNUSED_ARG(common); |
| 875 | switch(*cc) |
| 876 | { |
| 877 | case OP_SOD: |
| 878 | case OP_SOM: |
| 879 | case OP_SET_SOM: |
| 880 | case OP_NOT_WORD_BOUNDARY: |
| 881 | case OP_WORD_BOUNDARY: |
| 882 | case OP_NOT_DIGIT: |
| 883 | case OP_DIGIT: |
| 884 | case OP_NOT_WHITESPACE: |
| 885 | case OP_WHITESPACE: |
| 886 | case OP_NOT_WORDCHAR: |
| 887 | case OP_WORDCHAR: |
| 888 | case OP_ANY: |
| 889 | case OP_ALLANY: |
| 890 | case OP_NOTPROP: |
| 891 | case OP_PROP: |
| 892 | case OP_ANYNL: |
| 893 | case OP_NOT_HSPACE: |
| 894 | case OP_HSPACE: |
| 895 | case OP_NOT_VSPACE: |
| 896 | case OP_VSPACE: |
| 897 | case OP_EXTUNI: |
| 898 | case OP_EODN: |
| 899 | case OP_EOD: |
| 900 | case OP_CIRC: |
| 901 | case OP_CIRCM: |
| 902 | case OP_DOLL: |
| 903 | case OP_DOLLM: |
| 904 | case OP_CRSTAR: |
| 905 | case OP_CRMINSTAR: |
| 906 | case OP_CRPLUS: |
| 907 | case OP_CRMINPLUS: |
| 908 | case OP_CRQUERY: |
| 909 | case OP_CRMINQUERY: |
| 910 | case OP_CRRANGE: |
| 911 | case OP_CRMINRANGE: |
| 912 | case OP_CRPOSSTAR: |
| 913 | case OP_CRPOSPLUS: |
| 914 | case OP_CRPOSQUERY: |
| 915 | case OP_CRPOSRANGE: |
| 916 | case OP_CLASS: |
| 917 | case OP_NCLASS: |
| 918 | case OP_REF: |
| 919 | case OP_REFI: |
| 920 | case OP_DNREF: |
| 921 | case OP_DNREFI: |
| 922 | case OP_RECURSE: |
| 923 | case OP_CALLOUT: |
| 924 | case OP_ALT: |
| 925 | case OP_KET: |
| 926 | case OP_KETRMAX: |
| 927 | case OP_KETRMIN: |
| 928 | case OP_KETRPOS: |
| 929 | case OP_REVERSE: |
| 930 | case OP_ASSERT: |
| 931 | case OP_ASSERT_NOT: |
| 932 | case OP_ASSERTBACK: |
| 933 | case OP_ASSERTBACK_NOT: |
| 934 | case OP_ASSERT_NA: |
| 935 | case OP_ASSERTBACK_NA: |
| 936 | case OP_ONCE: |
| 937 | case OP_SCRIPT_RUN: |
| 938 | case OP_BRA: |
| 939 | case OP_BRAPOS: |
| 940 | case OP_CBRA: |
| 941 | case OP_CBRAPOS: |
| 942 | case OP_COND: |
| 943 | case OP_SBRA: |
| 944 | case OP_SBRAPOS: |
| 945 | case OP_SCBRA: |
| 946 | case OP_SCBRAPOS: |
| 947 | case OP_SCOND: |
| 948 | case OP_CREF: |
| 949 | case OP_DNCREF: |
| 950 | case OP_RREF: |
| 951 | case OP_DNRREF: |
| 952 | case OP_FALSE: |
| 953 | case OP_TRUE: |
| 954 | case OP_BRAZERO: |
| 955 | case OP_BRAMINZERO: |
| 956 | case OP_BRAPOSZERO: |
| 957 | case OP_PRUNE: |
| 958 | case OP_SKIP: |
| 959 | case OP_THEN: |
| 960 | case OP_COMMIT: |
| 961 | case OP_FAIL: |
| 962 | case OP_ACCEPT: |
| 963 | case OP_ASSERT_ACCEPT: |
| 964 | case OP_CLOSE: |
| 965 | case OP_SKIPZERO: |
| 966 | return cc + PRIV(OP_lengths)[*cc]; |
| 967 | |
| 968 | case OP_CHAR: |
| 969 | case OP_CHARI: |
| 970 | case OP_NOT: |
| 971 | case OP_NOTI: |
| 972 | case OP_STAR: |
| 973 | case OP_MINSTAR: |
| 974 | case OP_PLUS: |
| 975 | case OP_MINPLUS: |
| 976 | case OP_QUERY: |
| 977 | case OP_MINQUERY: |
| 978 | case OP_UPTO: |
| 979 | case OP_MINUPTO: |
| 980 | case OP_EXACT: |
| 981 | case OP_POSSTAR: |
| 982 | case OP_POSPLUS: |
| 983 | case OP_POSQUERY: |
| 984 | case OP_POSUPTO: |
| 985 | case OP_STARI: |
| 986 | case OP_MINSTARI: |
| 987 | case OP_PLUSI: |
| 988 | case OP_MINPLUSI: |
| 989 | case OP_QUERYI: |
| 990 | case OP_MINQUERYI: |
| 991 | case OP_UPTOI: |
| 992 | case OP_MINUPTOI: |
| 993 | case OP_EXACTI: |
| 994 | case OP_POSSTARI: |
| 995 | case OP_POSPLUSI: |
| 996 | case OP_POSQUERYI: |
| 997 | case OP_POSUPTOI: |
| 998 | case OP_NOTSTAR: |
| 999 | case OP_NOTMINSTAR: |
| 1000 | case OP_NOTPLUS: |
| 1001 | case OP_NOTMINPLUS: |
| 1002 | case OP_NOTQUERY: |
| 1003 | case OP_NOTMINQUERY: |
| 1004 | case OP_NOTUPTO: |
| 1005 | case OP_NOTMINUPTO: |
| 1006 | case OP_NOTEXACT: |
| 1007 | case OP_NOTPOSSTAR: |
| 1008 | case OP_NOTPOSPLUS: |
| 1009 | case OP_NOTPOSQUERY: |
| 1010 | case OP_NOTPOSUPTO: |
| 1011 | case OP_NOTSTARI: |
| 1012 | case OP_NOTMINSTARI: |
| 1013 | case OP_NOTPLUSI: |
| 1014 | case OP_NOTMINPLUSI: |
| 1015 | case OP_NOTQUERYI: |
| 1016 | case OP_NOTMINQUERYI: |
| 1017 | case OP_NOTUPTOI: |
| 1018 | case OP_NOTMINUPTOI: |
| 1019 | case OP_NOTEXACTI: |
| 1020 | case OP_NOTPOSSTARI: |
| 1021 | case OP_NOTPOSPLUSI: |
| 1022 | case OP_NOTPOSQUERYI: |
| 1023 | case OP_NOTPOSUPTOI: |
| 1024 | cc += PRIV(OP_lengths)[*cc]; |
| 1025 | #ifdef SUPPORT_UNICODE |
| 1026 | if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]); |
| 1027 | #endif |
| 1028 | return cc; |
| 1029 | |
| 1030 | /* Special cases. */ |
| 1031 | case OP_TYPESTAR: |
| 1032 | case OP_TYPEMINSTAR: |
| 1033 | case OP_TYPEPLUS: |
| 1034 | case OP_TYPEMINPLUS: |
| 1035 | case OP_TYPEQUERY: |
| 1036 | case OP_TYPEMINQUERY: |
| 1037 | case OP_TYPEUPTO: |
| 1038 | case OP_TYPEMINUPTO: |
| 1039 | case OP_TYPEEXACT: |
| 1040 | case OP_TYPEPOSSTAR: |
| 1041 | case OP_TYPEPOSPLUS: |
| 1042 | case OP_TYPEPOSQUERY: |
| 1043 | case OP_TYPEPOSUPTO: |
| 1044 | return cc + PRIV(OP_lengths)[*cc] - 1; |
| 1045 | |
| 1046 | case OP_ANYBYTE: |
| 1047 | #ifdef SUPPORT_UNICODE |
| 1048 | if (common->utf) return NULL; |
| 1049 | #endif |
| 1050 | return cc + 1; |
| 1051 | |
| 1052 | case OP_CALLOUT_STR: |
| 1053 | return cc + GET(cc, 1 + 2*LINK_SIZE); |
| 1054 | |
| 1055 | #if defined SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH != 8 |
| 1056 | case OP_XCLASS: |
| 1057 | return cc + GET(cc, 1); |
| 1058 | #endif |
| 1059 | |
| 1060 | case OP_MARK: |
| 1061 | case OP_COMMIT_ARG: |
| 1062 | case OP_PRUNE_ARG: |
| 1063 | case OP_SKIP_ARG: |
| 1064 | case OP_THEN_ARG: |
| 1065 | return cc + 1 + 2 + cc[1]; |
| 1066 | |
| 1067 | default: |
| 1068 | SLJIT_UNREACHABLE(); |
| 1069 | return NULL; |
| 1070 | } |
| 1071 | } |
| 1072 | |
| 1073 | static BOOL check_opcode_types(compiler_common *common, PCRE2_SPTR cc, PCRE2_SPTR ccend) |
| 1074 | { |
| 1075 | int count; |
| 1076 | PCRE2_SPTR slot; |
| 1077 | PCRE2_SPTR assert_back_end = cc - 1; |
| 1078 | PCRE2_SPTR assert_na_end = cc - 1; |
| 1079 | |
| 1080 | /* Calculate important variables (like stack size) and checks whether all opcodes are supported. */ |
| 1081 | while (cc < ccend) |
| 1082 | { |
| 1083 | switch(*cc) |
| 1084 | { |
| 1085 | case OP_SET_SOM: |
| 1086 | common->has_set_som = TRUE; |
| 1087 | common->might_be_empty = TRUE; |
| 1088 | cc += 1; |
| 1089 | break; |
| 1090 | |
| 1091 | case OP_REFI: |
| 1092 | #ifdef SUPPORT_UNICODE |
| 1093 | if (common->iref_ptr == 0) |
| 1094 | { |
| 1095 | common->iref_ptr = common->ovector_start; |
| 1096 | common->ovector_start += 3 * sizeof(sljit_sw); |
| 1097 | } |
| 1098 | #endif /* SUPPORT_UNICODE */ |
| 1099 | /* Fall through. */ |
| 1100 | case OP_REF: |
| 1101 | common->optimized_cbracket[GET2(cc, 1)] = 0; |
| 1102 | cc += 1 + IMM2_SIZE; |
| 1103 | break; |
| 1104 | |
| 1105 | case OP_ASSERT_NA: |
| 1106 | case OP_ASSERTBACK_NA: |
| 1107 | slot = bracketend(cc); |
| 1108 | if (slot > assert_na_end) |
| 1109 | assert_na_end = slot; |
| 1110 | cc += 1 + LINK_SIZE; |
| 1111 | break; |
| 1112 | |
| 1113 | case OP_CBRAPOS: |
| 1114 | case OP_SCBRAPOS: |
| 1115 | common->optimized_cbracket[GET2(cc, 1 + LINK_SIZE)] = 0; |
| 1116 | cc += 1 + LINK_SIZE + IMM2_SIZE; |
| 1117 | break; |
| 1118 | |
| 1119 | case OP_COND: |
| 1120 | case OP_SCOND: |
| 1121 | /* Only AUTO_CALLOUT can insert this opcode. We do |
| 1122 | not intend to support this case. */ |
| 1123 | if (cc[1 + LINK_SIZE] == OP_CALLOUT || cc[1 + LINK_SIZE] == OP_CALLOUT_STR) |
| 1124 | return FALSE; |
| 1125 | cc += 1 + LINK_SIZE; |
| 1126 | break; |
| 1127 | |
| 1128 | case OP_CREF: |
| 1129 | common->optimized_cbracket[GET2(cc, 1)] = 0; |
| 1130 | cc += 1 + IMM2_SIZE; |
| 1131 | break; |
| 1132 | |
| 1133 | case OP_DNREF: |
| 1134 | case OP_DNREFI: |
| 1135 | case OP_DNCREF: |
| 1136 | count = GET2(cc, 1 + IMM2_SIZE); |
| 1137 | slot = common->name_table + GET2(cc, 1) * common->name_entry_size; |
| 1138 | while (count-- > 0) |
| 1139 | { |
| 1140 | common->optimized_cbracket[GET2(slot, 0)] = 0; |
| 1141 | slot += common->name_entry_size; |
| 1142 | } |
| 1143 | cc += 1 + 2 * IMM2_SIZE; |
| 1144 | break; |
| 1145 | |
| 1146 | case OP_RECURSE: |
| 1147 | /* Set its value only once. */ |
| 1148 | if (common->recursive_head_ptr == 0) |
| 1149 | { |
| 1150 | common->recursive_head_ptr = common->ovector_start; |
| 1151 | common->ovector_start += sizeof(sljit_sw); |
| 1152 | } |
| 1153 | cc += 1 + LINK_SIZE; |
| 1154 | break; |
| 1155 | |
| 1156 | case OP_CALLOUT: |
| 1157 | case OP_CALLOUT_STR: |
| 1158 | if (common->capture_last_ptr == 0) |
| 1159 | { |
| 1160 | common->capture_last_ptr = common->ovector_start; |
| 1161 | common->ovector_start += sizeof(sljit_sw); |
| 1162 | } |
| 1163 | cc += (*cc == OP_CALLOUT) ? PRIV(OP_lengths)[OP_CALLOUT] : GET(cc, 1 + 2*LINK_SIZE); |
| 1164 | break; |
| 1165 | |
| 1166 | case OP_ASSERTBACK: |
| 1167 | slot = bracketend(cc); |
| 1168 | if (slot > assert_back_end) |
| 1169 | assert_back_end = slot; |
| 1170 | cc += 1 + LINK_SIZE; |
| 1171 | break; |
| 1172 | |
| 1173 | case OP_THEN_ARG: |
| 1174 | common->has_then = TRUE; |
| 1175 | common->control_head_ptr = 1; |
| 1176 | /* Fall through. */ |
| 1177 | |
| 1178 | case OP_COMMIT_ARG: |
| 1179 | case OP_PRUNE_ARG: |
| 1180 | if (cc < assert_na_end) |
| 1181 | return FALSE; |
| 1182 | /* Fall through */ |
| 1183 | case OP_MARK: |
| 1184 | if (common->mark_ptr == 0) |
| 1185 | { |
| 1186 | common->mark_ptr = common->ovector_start; |
| 1187 | common->ovector_start += sizeof(sljit_sw); |
| 1188 | } |
| 1189 | cc += 1 + 2 + cc[1]; |
| 1190 | break; |
| 1191 | |
| 1192 | case OP_THEN: |
| 1193 | common->has_then = TRUE; |
| 1194 | common->control_head_ptr = 1; |
| 1195 | cc += 1; |
| 1196 | break; |
| 1197 | |
| 1198 | case OP_SKIP: |
| 1199 | if (cc < assert_back_end) |
| 1200 | common->has_skip_in_assert_back = TRUE; |
| 1201 | if (cc < assert_na_end) |
| 1202 | return FALSE; |
| 1203 | cc += 1; |
| 1204 | break; |
| 1205 | |
| 1206 | case OP_SKIP_ARG: |
| 1207 | common->control_head_ptr = 1; |
| 1208 | common->has_skip_arg = TRUE; |
| 1209 | if (cc < assert_back_end) |
| 1210 | common->has_skip_in_assert_back = TRUE; |
| 1211 | if (cc < assert_na_end) |
| 1212 | return FALSE; |
| 1213 | cc += 1 + 2 + cc[1]; |
| 1214 | break; |
| 1215 | |
| 1216 | case OP_PRUNE: |
| 1217 | case OP_COMMIT: |
| 1218 | case OP_ASSERT_ACCEPT: |
| 1219 | if (cc < assert_na_end) |
| 1220 | return FALSE; |
| 1221 | cc++; |
| 1222 | break; |
| 1223 | |
| 1224 | default: |
| 1225 | cc = next_opcode(common, cc); |
| 1226 | if (cc == NULL) |
| 1227 | return FALSE; |
| 1228 | break; |
| 1229 | } |
| 1230 | } |
| 1231 | return TRUE; |
| 1232 | } |
| 1233 | |
| 1234 | #define EARLY_FAIL_ENHANCE_MAX (1 + 3) |
| 1235 | |
| 1236 | /* |
| 1237 | start: |
| 1238 | 0 - skip / early fail allowed |
| 1239 | 1 - only early fail with range allowed |
| 1240 | >1 - (start - 1) early fail is processed |
| 1241 | |
| 1242 | return: current number of iterators enhanced with fast fail |
| 1243 | */ |
| 1244 | static int detect_early_fail(compiler_common *common, PCRE2_SPTR cc, int *private_data_start, |
| 1245 | sljit_s32 depth, int start, BOOL fast_forward_allowed) |
| 1246 | { |
| 1247 | PCRE2_SPTR begin = cc; |
| 1248 | PCRE2_SPTR next_alt; |
| 1249 | PCRE2_SPTR end; |
| 1250 | PCRE2_SPTR accelerated_start; |
| 1251 | BOOL prev_fast_forward_allowed; |
| 1252 | int result = 0; |
| 1253 | int count; |
| 1254 | |
| 1255 | SLJIT_ASSERT(*cc == OP_ONCE || *cc == OP_BRA || *cc == OP_CBRA); |
| 1256 | SLJIT_ASSERT(*cc != OP_CBRA || common->optimized_cbracket[GET2(cc, 1 + LINK_SIZE)] != 0); |
| 1257 | SLJIT_ASSERT(start < EARLY_FAIL_ENHANCE_MAX); |
| 1258 | |
Elliott Hughes | 16619d6 | 2021-10-29 12:10:38 -0700 | [diff] [blame] | 1259 | next_alt = cc + GET(cc, 1); |
| 1260 | if (*next_alt == OP_ALT) |
| 1261 | fast_forward_allowed = FALSE; |
| 1262 | |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 1263 | do |
| 1264 | { |
| 1265 | count = start; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 1266 | cc += 1 + LINK_SIZE + ((*cc == OP_CBRA) ? IMM2_SIZE : 0); |
| 1267 | |
| 1268 | while (TRUE) |
| 1269 | { |
| 1270 | accelerated_start = NULL; |
| 1271 | |
| 1272 | switch(*cc) |
| 1273 | { |
| 1274 | case OP_SOD: |
| 1275 | case OP_SOM: |
| 1276 | case OP_SET_SOM: |
| 1277 | case OP_NOT_WORD_BOUNDARY: |
| 1278 | case OP_WORD_BOUNDARY: |
| 1279 | case OP_EODN: |
| 1280 | case OP_EOD: |
| 1281 | case OP_CIRC: |
| 1282 | case OP_CIRCM: |
| 1283 | case OP_DOLL: |
| 1284 | case OP_DOLLM: |
| 1285 | /* Zero width assertions. */ |
| 1286 | cc++; |
| 1287 | continue; |
| 1288 | |
| 1289 | case OP_NOT_DIGIT: |
| 1290 | case OP_DIGIT: |
| 1291 | case OP_NOT_WHITESPACE: |
| 1292 | case OP_WHITESPACE: |
| 1293 | case OP_NOT_WORDCHAR: |
| 1294 | case OP_WORDCHAR: |
| 1295 | case OP_ANY: |
| 1296 | case OP_ALLANY: |
| 1297 | case OP_ANYBYTE: |
| 1298 | case OP_NOT_HSPACE: |
| 1299 | case OP_HSPACE: |
| 1300 | case OP_NOT_VSPACE: |
| 1301 | case OP_VSPACE: |
| 1302 | fast_forward_allowed = FALSE; |
| 1303 | cc++; |
| 1304 | continue; |
| 1305 | |
| 1306 | case OP_ANYNL: |
| 1307 | case OP_EXTUNI: |
| 1308 | fast_forward_allowed = FALSE; |
| 1309 | if (count == 0) |
| 1310 | count = 1; |
| 1311 | cc++; |
| 1312 | continue; |
| 1313 | |
| 1314 | case OP_NOTPROP: |
| 1315 | case OP_PROP: |
| 1316 | fast_forward_allowed = FALSE; |
| 1317 | cc += 1 + 2; |
| 1318 | continue; |
| 1319 | |
| 1320 | case OP_CHAR: |
| 1321 | case OP_CHARI: |
| 1322 | case OP_NOT: |
| 1323 | case OP_NOTI: |
| 1324 | fast_forward_allowed = FALSE; |
| 1325 | cc += 2; |
| 1326 | #ifdef SUPPORT_UNICODE |
| 1327 | if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]); |
| 1328 | #endif |
| 1329 | continue; |
| 1330 | |
| 1331 | case OP_TYPESTAR: |
| 1332 | case OP_TYPEMINSTAR: |
| 1333 | case OP_TYPEPLUS: |
| 1334 | case OP_TYPEMINPLUS: |
| 1335 | case OP_TYPEPOSSTAR: |
| 1336 | case OP_TYPEPOSPLUS: |
| 1337 | /* The type or prop opcode is skipped in the next iteration. */ |
| 1338 | cc += 1; |
| 1339 | |
| 1340 | if (cc[0] != OP_ANYNL && cc[0] != OP_EXTUNI) |
| 1341 | { |
| 1342 | accelerated_start = cc - 1; |
| 1343 | break; |
| 1344 | } |
| 1345 | |
| 1346 | if (count == 0) |
| 1347 | count = 1; |
| 1348 | fast_forward_allowed = FALSE; |
| 1349 | continue; |
| 1350 | |
| 1351 | case OP_TYPEUPTO: |
| 1352 | case OP_TYPEMINUPTO: |
| 1353 | case OP_TYPEEXACT: |
| 1354 | case OP_TYPEPOSUPTO: |
| 1355 | cc += IMM2_SIZE; |
| 1356 | /* Fall through */ |
| 1357 | |
| 1358 | case OP_TYPEQUERY: |
| 1359 | case OP_TYPEMINQUERY: |
| 1360 | case OP_TYPEPOSQUERY: |
| 1361 | /* The type or prop opcode is skipped in the next iteration. */ |
| 1362 | fast_forward_allowed = FALSE; |
| 1363 | if (count == 0) |
| 1364 | count = 1; |
| 1365 | cc += 1; |
| 1366 | continue; |
| 1367 | |
| 1368 | case OP_STAR: |
| 1369 | case OP_MINSTAR: |
| 1370 | case OP_PLUS: |
| 1371 | case OP_MINPLUS: |
| 1372 | case OP_POSSTAR: |
| 1373 | case OP_POSPLUS: |
| 1374 | |
| 1375 | case OP_STARI: |
| 1376 | case OP_MINSTARI: |
| 1377 | case OP_PLUSI: |
| 1378 | case OP_MINPLUSI: |
| 1379 | case OP_POSSTARI: |
| 1380 | case OP_POSPLUSI: |
| 1381 | |
| 1382 | case OP_NOTSTAR: |
| 1383 | case OP_NOTMINSTAR: |
| 1384 | case OP_NOTPLUS: |
| 1385 | case OP_NOTMINPLUS: |
| 1386 | case OP_NOTPOSSTAR: |
| 1387 | case OP_NOTPOSPLUS: |
| 1388 | |
| 1389 | case OP_NOTSTARI: |
| 1390 | case OP_NOTMINSTARI: |
| 1391 | case OP_NOTPLUSI: |
| 1392 | case OP_NOTMINPLUSI: |
| 1393 | case OP_NOTPOSSTARI: |
| 1394 | case OP_NOTPOSPLUSI: |
| 1395 | accelerated_start = cc; |
| 1396 | cc += 2; |
| 1397 | #ifdef SUPPORT_UNICODE |
| 1398 | if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]); |
| 1399 | #endif |
| 1400 | break; |
| 1401 | |
| 1402 | case OP_UPTO: |
| 1403 | case OP_MINUPTO: |
| 1404 | case OP_EXACT: |
| 1405 | case OP_POSUPTO: |
| 1406 | case OP_UPTOI: |
| 1407 | case OP_MINUPTOI: |
| 1408 | case OP_EXACTI: |
| 1409 | case OP_POSUPTOI: |
| 1410 | case OP_NOTUPTO: |
| 1411 | case OP_NOTMINUPTO: |
| 1412 | case OP_NOTEXACT: |
| 1413 | case OP_NOTPOSUPTO: |
| 1414 | case OP_NOTUPTOI: |
| 1415 | case OP_NOTMINUPTOI: |
| 1416 | case OP_NOTEXACTI: |
| 1417 | case OP_NOTPOSUPTOI: |
| 1418 | cc += IMM2_SIZE; |
| 1419 | /* Fall through */ |
| 1420 | |
| 1421 | case OP_QUERY: |
| 1422 | case OP_MINQUERY: |
| 1423 | case OP_POSQUERY: |
| 1424 | case OP_QUERYI: |
| 1425 | case OP_MINQUERYI: |
| 1426 | case OP_POSQUERYI: |
| 1427 | case OP_NOTQUERY: |
| 1428 | case OP_NOTMINQUERY: |
| 1429 | case OP_NOTPOSQUERY: |
| 1430 | case OP_NOTQUERYI: |
| 1431 | case OP_NOTMINQUERYI: |
| 1432 | case OP_NOTPOSQUERYI: |
| 1433 | fast_forward_allowed = FALSE; |
| 1434 | if (count == 0) |
| 1435 | count = 1; |
| 1436 | cc += 2; |
| 1437 | #ifdef SUPPORT_UNICODE |
| 1438 | if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]); |
| 1439 | #endif |
| 1440 | continue; |
| 1441 | |
| 1442 | case OP_CLASS: |
| 1443 | case OP_NCLASS: |
| 1444 | #if defined SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH != 8 |
| 1445 | case OP_XCLASS: |
| 1446 | accelerated_start = cc; |
| 1447 | cc += ((*cc == OP_XCLASS) ? GET(cc, 1) : (unsigned int)(1 + (32 / sizeof(PCRE2_UCHAR)))); |
| 1448 | #else |
| 1449 | accelerated_start = cc; |
| 1450 | cc += (1 + (32 / sizeof(PCRE2_UCHAR))); |
| 1451 | #endif |
| 1452 | |
| 1453 | switch (*cc) |
| 1454 | { |
| 1455 | case OP_CRSTAR: |
| 1456 | case OP_CRMINSTAR: |
| 1457 | case OP_CRPLUS: |
| 1458 | case OP_CRMINPLUS: |
| 1459 | case OP_CRPOSSTAR: |
| 1460 | case OP_CRPOSPLUS: |
| 1461 | cc++; |
| 1462 | break; |
| 1463 | |
| 1464 | case OP_CRRANGE: |
| 1465 | case OP_CRMINRANGE: |
| 1466 | case OP_CRPOSRANGE: |
| 1467 | cc += 2 * IMM2_SIZE; |
| 1468 | /* Fall through */ |
| 1469 | case OP_CRQUERY: |
| 1470 | case OP_CRMINQUERY: |
| 1471 | case OP_CRPOSQUERY: |
| 1472 | cc++; |
| 1473 | if (count == 0) |
| 1474 | count = 1; |
| 1475 | /* Fall through */ |
| 1476 | default: |
| 1477 | accelerated_start = NULL; |
| 1478 | fast_forward_allowed = FALSE; |
| 1479 | continue; |
| 1480 | } |
| 1481 | break; |
| 1482 | |
| 1483 | case OP_ONCE: |
| 1484 | case OP_BRA: |
| 1485 | case OP_CBRA: |
| 1486 | end = cc + GET(cc, 1); |
| 1487 | |
| 1488 | prev_fast_forward_allowed = fast_forward_allowed; |
| 1489 | fast_forward_allowed = FALSE; |
| 1490 | if (depth >= 4) |
| 1491 | break; |
| 1492 | |
| 1493 | end = bracketend(cc) - (1 + LINK_SIZE); |
| 1494 | if (*end != OP_KET || (*cc == OP_CBRA && common->optimized_cbracket[GET2(cc, 1 + LINK_SIZE)] == 0)) |
| 1495 | break; |
| 1496 | |
| 1497 | count = detect_early_fail(common, cc, private_data_start, depth + 1, count, prev_fast_forward_allowed); |
| 1498 | |
| 1499 | if (PRIVATE_DATA(cc) != 0) |
| 1500 | common->private_data_ptrs[begin - common->start] = 1; |
| 1501 | |
| 1502 | if (count < EARLY_FAIL_ENHANCE_MAX) |
| 1503 | { |
| 1504 | cc = end + (1 + LINK_SIZE); |
| 1505 | continue; |
| 1506 | } |
| 1507 | break; |
| 1508 | |
| 1509 | case OP_KET: |
| 1510 | SLJIT_ASSERT(PRIVATE_DATA(cc) == 0); |
| 1511 | if (cc >= next_alt) |
| 1512 | break; |
| 1513 | cc += 1 + LINK_SIZE; |
| 1514 | continue; |
| 1515 | } |
| 1516 | |
| 1517 | if (accelerated_start != NULL) |
| 1518 | { |
| 1519 | if (count == 0) |
| 1520 | { |
| 1521 | count++; |
| 1522 | |
Elliott Hughes | 16619d6 | 2021-10-29 12:10:38 -0700 | [diff] [blame] | 1523 | if (fast_forward_allowed) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 1524 | { |
| 1525 | common->fast_forward_bc_ptr = accelerated_start; |
| 1526 | common->private_data_ptrs[(accelerated_start + 1) - common->start] = ((*private_data_start) << 3) | type_skip; |
| 1527 | *private_data_start += sizeof(sljit_sw); |
| 1528 | } |
| 1529 | else |
| 1530 | { |
| 1531 | common->private_data_ptrs[(accelerated_start + 1) - common->start] = ((*private_data_start) << 3) | type_fail; |
| 1532 | |
| 1533 | if (common->early_fail_start_ptr == 0) |
| 1534 | common->early_fail_start_ptr = *private_data_start; |
| 1535 | |
| 1536 | *private_data_start += sizeof(sljit_sw); |
| 1537 | common->early_fail_end_ptr = *private_data_start; |
| 1538 | |
| 1539 | if (*private_data_start > SLJIT_MAX_LOCAL_SIZE) |
| 1540 | return EARLY_FAIL_ENHANCE_MAX; |
| 1541 | } |
| 1542 | } |
| 1543 | else |
| 1544 | { |
| 1545 | common->private_data_ptrs[(accelerated_start + 1) - common->start] = ((*private_data_start) << 3) | type_fail_range; |
| 1546 | |
| 1547 | if (common->early_fail_start_ptr == 0) |
| 1548 | common->early_fail_start_ptr = *private_data_start; |
| 1549 | |
| 1550 | *private_data_start += 2 * sizeof(sljit_sw); |
| 1551 | common->early_fail_end_ptr = *private_data_start; |
| 1552 | |
| 1553 | if (*private_data_start > SLJIT_MAX_LOCAL_SIZE) |
| 1554 | return EARLY_FAIL_ENHANCE_MAX; |
| 1555 | } |
| 1556 | |
| 1557 | /* Cannot be part of a repeat. */ |
| 1558 | common->private_data_ptrs[begin - common->start] = 1; |
| 1559 | count++; |
| 1560 | |
| 1561 | if (count < EARLY_FAIL_ENHANCE_MAX) |
| 1562 | continue; |
| 1563 | } |
| 1564 | |
| 1565 | break; |
| 1566 | } |
| 1567 | |
| 1568 | if (*cc != OP_ALT && *cc != OP_KET) |
| 1569 | result = EARLY_FAIL_ENHANCE_MAX; |
| 1570 | else if (result < count) |
| 1571 | result = count; |
| 1572 | |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 1573 | cc = next_alt; |
Elliott Hughes | 16619d6 | 2021-10-29 12:10:38 -0700 | [diff] [blame] | 1574 | next_alt = cc + GET(cc, 1); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 1575 | } |
| 1576 | while (*cc == OP_ALT); |
| 1577 | |
| 1578 | return result; |
| 1579 | } |
| 1580 | |
| 1581 | static int get_class_iterator_size(PCRE2_SPTR cc) |
| 1582 | { |
| 1583 | sljit_u32 min; |
| 1584 | sljit_u32 max; |
| 1585 | switch(*cc) |
| 1586 | { |
| 1587 | case OP_CRSTAR: |
| 1588 | case OP_CRPLUS: |
| 1589 | return 2; |
| 1590 | |
| 1591 | case OP_CRMINSTAR: |
| 1592 | case OP_CRMINPLUS: |
| 1593 | case OP_CRQUERY: |
| 1594 | case OP_CRMINQUERY: |
| 1595 | return 1; |
| 1596 | |
| 1597 | case OP_CRRANGE: |
| 1598 | case OP_CRMINRANGE: |
| 1599 | min = GET2(cc, 1); |
| 1600 | max = GET2(cc, 1 + IMM2_SIZE); |
| 1601 | if (max == 0) |
| 1602 | return (*cc == OP_CRRANGE) ? 2 : 1; |
| 1603 | max -= min; |
| 1604 | if (max > 2) |
| 1605 | max = 2; |
| 1606 | return max; |
| 1607 | |
| 1608 | default: |
| 1609 | return 0; |
| 1610 | } |
| 1611 | } |
| 1612 | |
| 1613 | static BOOL detect_repeat(compiler_common *common, PCRE2_SPTR begin) |
| 1614 | { |
| 1615 | PCRE2_SPTR end = bracketend(begin); |
| 1616 | PCRE2_SPTR next; |
| 1617 | PCRE2_SPTR next_end; |
| 1618 | PCRE2_SPTR max_end; |
| 1619 | PCRE2_UCHAR type; |
| 1620 | sljit_sw length = end - begin; |
| 1621 | sljit_s32 min, max, i; |
| 1622 | |
| 1623 | /* Detect fixed iterations first. */ |
| 1624 | if (end[-(1 + LINK_SIZE)] != OP_KET || PRIVATE_DATA(begin) != 0) |
| 1625 | return FALSE; |
| 1626 | |
| 1627 | /* /(?:AB){4,6}/ is currently converted to /(?:AB){3}(?AB){1,3}/ |
| 1628 | * Skip the check of the second part. */ |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 1629 | if (PRIVATE_DATA(end - LINK_SIZE) != 0) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 1630 | return TRUE; |
| 1631 | |
| 1632 | next = end; |
| 1633 | min = 1; |
| 1634 | while (1) |
| 1635 | { |
| 1636 | if (*next != *begin) |
| 1637 | break; |
| 1638 | next_end = bracketend(next); |
| 1639 | if (next_end - next != length || memcmp(begin, next, IN_UCHARS(length)) != 0) |
| 1640 | break; |
| 1641 | next = next_end; |
| 1642 | min++; |
| 1643 | } |
| 1644 | |
| 1645 | if (min == 2) |
| 1646 | return FALSE; |
| 1647 | |
| 1648 | max = 0; |
| 1649 | max_end = next; |
| 1650 | if (*next == OP_BRAZERO || *next == OP_BRAMINZERO) |
| 1651 | { |
| 1652 | type = *next; |
| 1653 | while (1) |
| 1654 | { |
| 1655 | if (next[0] != type || next[1] != OP_BRA || next[2 + LINK_SIZE] != *begin) |
| 1656 | break; |
| 1657 | next_end = bracketend(next + 2 + LINK_SIZE); |
| 1658 | if (next_end - next != (length + 2 + LINK_SIZE) || memcmp(begin, next + 2 + LINK_SIZE, IN_UCHARS(length)) != 0) |
| 1659 | break; |
| 1660 | next = next_end; |
| 1661 | max++; |
| 1662 | } |
| 1663 | |
| 1664 | if (next[0] == type && next[1] == *begin && max >= 1) |
| 1665 | { |
| 1666 | next_end = bracketend(next + 1); |
| 1667 | if (next_end - next == (length + 1) && memcmp(begin, next + 1, IN_UCHARS(length)) == 0) |
| 1668 | { |
| 1669 | for (i = 0; i < max; i++, next_end += 1 + LINK_SIZE) |
| 1670 | if (*next_end != OP_KET) |
| 1671 | break; |
| 1672 | |
| 1673 | if (i == max) |
| 1674 | { |
| 1675 | common->private_data_ptrs[max_end - common->start - LINK_SIZE] = next_end - max_end; |
| 1676 | common->private_data_ptrs[max_end - common->start - LINK_SIZE + 1] = (type == OP_BRAZERO) ? OP_UPTO : OP_MINUPTO; |
| 1677 | /* +2 the original and the last. */ |
| 1678 | common->private_data_ptrs[max_end - common->start - LINK_SIZE + 2] = max + 2; |
| 1679 | if (min == 1) |
| 1680 | return TRUE; |
| 1681 | min--; |
| 1682 | max_end -= (1 + LINK_SIZE) + GET(max_end, -LINK_SIZE); |
| 1683 | } |
| 1684 | } |
| 1685 | } |
| 1686 | } |
| 1687 | |
| 1688 | if (min >= 3) |
| 1689 | { |
| 1690 | common->private_data_ptrs[end - common->start - LINK_SIZE] = max_end - end; |
| 1691 | common->private_data_ptrs[end - common->start - LINK_SIZE + 1] = OP_EXACT; |
| 1692 | common->private_data_ptrs[end - common->start - LINK_SIZE + 2] = min; |
| 1693 | return TRUE; |
| 1694 | } |
| 1695 | |
| 1696 | return FALSE; |
| 1697 | } |
| 1698 | |
| 1699 | #define CASE_ITERATOR_PRIVATE_DATA_1 \ |
| 1700 | case OP_MINSTAR: \ |
| 1701 | case OP_MINPLUS: \ |
| 1702 | case OP_QUERY: \ |
| 1703 | case OP_MINQUERY: \ |
| 1704 | case OP_MINSTARI: \ |
| 1705 | case OP_MINPLUSI: \ |
| 1706 | case OP_QUERYI: \ |
| 1707 | case OP_MINQUERYI: \ |
| 1708 | case OP_NOTMINSTAR: \ |
| 1709 | case OP_NOTMINPLUS: \ |
| 1710 | case OP_NOTQUERY: \ |
| 1711 | case OP_NOTMINQUERY: \ |
| 1712 | case OP_NOTMINSTARI: \ |
| 1713 | case OP_NOTMINPLUSI: \ |
| 1714 | case OP_NOTQUERYI: \ |
| 1715 | case OP_NOTMINQUERYI: |
| 1716 | |
| 1717 | #define CASE_ITERATOR_PRIVATE_DATA_2A \ |
| 1718 | case OP_STAR: \ |
| 1719 | case OP_PLUS: \ |
| 1720 | case OP_STARI: \ |
| 1721 | case OP_PLUSI: \ |
| 1722 | case OP_NOTSTAR: \ |
| 1723 | case OP_NOTPLUS: \ |
| 1724 | case OP_NOTSTARI: \ |
| 1725 | case OP_NOTPLUSI: |
| 1726 | |
| 1727 | #define CASE_ITERATOR_PRIVATE_DATA_2B \ |
| 1728 | case OP_UPTO: \ |
| 1729 | case OP_MINUPTO: \ |
| 1730 | case OP_UPTOI: \ |
| 1731 | case OP_MINUPTOI: \ |
| 1732 | case OP_NOTUPTO: \ |
| 1733 | case OP_NOTMINUPTO: \ |
| 1734 | case OP_NOTUPTOI: \ |
| 1735 | case OP_NOTMINUPTOI: |
| 1736 | |
| 1737 | #define CASE_ITERATOR_TYPE_PRIVATE_DATA_1 \ |
| 1738 | case OP_TYPEMINSTAR: \ |
| 1739 | case OP_TYPEMINPLUS: \ |
| 1740 | case OP_TYPEQUERY: \ |
| 1741 | case OP_TYPEMINQUERY: |
| 1742 | |
| 1743 | #define CASE_ITERATOR_TYPE_PRIVATE_DATA_2A \ |
| 1744 | case OP_TYPESTAR: \ |
| 1745 | case OP_TYPEPLUS: |
| 1746 | |
| 1747 | #define CASE_ITERATOR_TYPE_PRIVATE_DATA_2B \ |
| 1748 | case OP_TYPEUPTO: \ |
| 1749 | case OP_TYPEMINUPTO: |
| 1750 | |
| 1751 | static void set_private_data_ptrs(compiler_common *common, int *private_data_start, PCRE2_SPTR ccend) |
| 1752 | { |
| 1753 | PCRE2_SPTR cc = common->start; |
| 1754 | PCRE2_SPTR alternative; |
| 1755 | PCRE2_SPTR end = NULL; |
| 1756 | int private_data_ptr = *private_data_start; |
| 1757 | int space, size, bracketlen; |
| 1758 | BOOL repeat_check = TRUE; |
| 1759 | |
| 1760 | while (cc < ccend) |
| 1761 | { |
| 1762 | space = 0; |
| 1763 | size = 0; |
| 1764 | bracketlen = 0; |
| 1765 | if (private_data_ptr > SLJIT_MAX_LOCAL_SIZE) |
| 1766 | break; |
| 1767 | |
| 1768 | /* When the bracket is prefixed by a zero iteration, skip the repeat check (at this point). */ |
| 1769 | if (repeat_check && (*cc == OP_ONCE || *cc == OP_BRA || *cc == OP_CBRA || *cc == OP_COND)) |
| 1770 | { |
| 1771 | if (detect_repeat(common, cc)) |
| 1772 | { |
| 1773 | /* These brackets are converted to repeats, so no global |
| 1774 | based single character repeat is allowed. */ |
| 1775 | if (cc >= end) |
| 1776 | end = bracketend(cc); |
| 1777 | } |
| 1778 | } |
| 1779 | repeat_check = TRUE; |
| 1780 | |
| 1781 | switch(*cc) |
| 1782 | { |
| 1783 | case OP_KET: |
| 1784 | if (common->private_data_ptrs[cc + 1 - common->start] != 0) |
| 1785 | { |
| 1786 | common->private_data_ptrs[cc - common->start] = private_data_ptr; |
| 1787 | private_data_ptr += sizeof(sljit_sw); |
| 1788 | cc += common->private_data_ptrs[cc + 1 - common->start]; |
| 1789 | } |
| 1790 | cc += 1 + LINK_SIZE; |
| 1791 | break; |
| 1792 | |
| 1793 | case OP_ASSERT: |
| 1794 | case OP_ASSERT_NOT: |
| 1795 | case OP_ASSERTBACK: |
| 1796 | case OP_ASSERTBACK_NOT: |
| 1797 | case OP_ASSERT_NA: |
| 1798 | case OP_ASSERTBACK_NA: |
| 1799 | case OP_ONCE: |
| 1800 | case OP_SCRIPT_RUN: |
| 1801 | case OP_BRAPOS: |
| 1802 | case OP_SBRA: |
| 1803 | case OP_SBRAPOS: |
| 1804 | case OP_SCOND: |
| 1805 | common->private_data_ptrs[cc - common->start] = private_data_ptr; |
| 1806 | private_data_ptr += sizeof(sljit_sw); |
| 1807 | bracketlen = 1 + LINK_SIZE; |
| 1808 | break; |
| 1809 | |
| 1810 | case OP_CBRAPOS: |
| 1811 | case OP_SCBRAPOS: |
| 1812 | common->private_data_ptrs[cc - common->start] = private_data_ptr; |
| 1813 | private_data_ptr += sizeof(sljit_sw); |
| 1814 | bracketlen = 1 + LINK_SIZE + IMM2_SIZE; |
| 1815 | break; |
| 1816 | |
| 1817 | case OP_COND: |
| 1818 | /* Might be a hidden SCOND. */ |
| 1819 | common->private_data_ptrs[cc - common->start] = 0; |
| 1820 | alternative = cc + GET(cc, 1); |
| 1821 | if (*alternative == OP_KETRMAX || *alternative == OP_KETRMIN) |
| 1822 | { |
| 1823 | common->private_data_ptrs[cc - common->start] = private_data_ptr; |
| 1824 | private_data_ptr += sizeof(sljit_sw); |
| 1825 | } |
| 1826 | bracketlen = 1 + LINK_SIZE; |
| 1827 | break; |
| 1828 | |
| 1829 | case OP_BRA: |
| 1830 | bracketlen = 1 + LINK_SIZE; |
| 1831 | break; |
| 1832 | |
| 1833 | case OP_CBRA: |
| 1834 | case OP_SCBRA: |
| 1835 | bracketlen = 1 + LINK_SIZE + IMM2_SIZE; |
| 1836 | break; |
| 1837 | |
| 1838 | case OP_BRAZERO: |
| 1839 | case OP_BRAMINZERO: |
| 1840 | case OP_BRAPOSZERO: |
| 1841 | size = 1; |
| 1842 | repeat_check = FALSE; |
| 1843 | break; |
| 1844 | |
| 1845 | CASE_ITERATOR_PRIVATE_DATA_1 |
| 1846 | size = -2; |
| 1847 | space = 1; |
| 1848 | break; |
| 1849 | |
| 1850 | CASE_ITERATOR_PRIVATE_DATA_2A |
| 1851 | size = -2; |
| 1852 | space = 2; |
| 1853 | break; |
| 1854 | |
| 1855 | CASE_ITERATOR_PRIVATE_DATA_2B |
| 1856 | size = -(2 + IMM2_SIZE); |
| 1857 | space = 2; |
| 1858 | break; |
| 1859 | |
| 1860 | CASE_ITERATOR_TYPE_PRIVATE_DATA_1 |
| 1861 | size = 1; |
| 1862 | space = 1; |
| 1863 | break; |
| 1864 | |
| 1865 | CASE_ITERATOR_TYPE_PRIVATE_DATA_2A |
| 1866 | size = 1; |
| 1867 | if (cc[1] != OP_ANYNL && cc[1] != OP_EXTUNI) |
| 1868 | space = 2; |
| 1869 | break; |
| 1870 | |
| 1871 | case OP_TYPEUPTO: |
| 1872 | size = 1 + IMM2_SIZE; |
| 1873 | if (cc[1 + IMM2_SIZE] != OP_ANYNL && cc[1 + IMM2_SIZE] != OP_EXTUNI) |
| 1874 | space = 2; |
| 1875 | break; |
| 1876 | |
| 1877 | case OP_TYPEMINUPTO: |
| 1878 | size = 1 + IMM2_SIZE; |
| 1879 | space = 2; |
| 1880 | break; |
| 1881 | |
| 1882 | case OP_CLASS: |
| 1883 | case OP_NCLASS: |
| 1884 | size = 1 + 32 / sizeof(PCRE2_UCHAR); |
| 1885 | space = get_class_iterator_size(cc + size); |
| 1886 | break; |
| 1887 | |
| 1888 | #if defined SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH != 8 |
| 1889 | case OP_XCLASS: |
| 1890 | size = GET(cc, 1); |
| 1891 | space = get_class_iterator_size(cc + size); |
| 1892 | break; |
| 1893 | #endif |
| 1894 | |
| 1895 | default: |
| 1896 | cc = next_opcode(common, cc); |
| 1897 | SLJIT_ASSERT(cc != NULL); |
| 1898 | break; |
| 1899 | } |
| 1900 | |
| 1901 | /* Character iterators, which are not inside a repeated bracket, |
| 1902 | gets a private slot instead of allocating it on the stack. */ |
| 1903 | if (space > 0 && cc >= end) |
| 1904 | { |
| 1905 | common->private_data_ptrs[cc - common->start] = private_data_ptr; |
| 1906 | private_data_ptr += sizeof(sljit_sw) * space; |
| 1907 | } |
| 1908 | |
| 1909 | if (size != 0) |
| 1910 | { |
| 1911 | if (size < 0) |
| 1912 | { |
| 1913 | cc += -size; |
| 1914 | #ifdef SUPPORT_UNICODE |
| 1915 | if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]); |
| 1916 | #endif |
| 1917 | } |
| 1918 | else |
| 1919 | cc += size; |
| 1920 | } |
| 1921 | |
| 1922 | if (bracketlen > 0) |
| 1923 | { |
| 1924 | if (cc >= end) |
| 1925 | { |
| 1926 | end = bracketend(cc); |
| 1927 | if (end[-1 - LINK_SIZE] == OP_KET) |
| 1928 | end = NULL; |
| 1929 | } |
| 1930 | cc += bracketlen; |
| 1931 | } |
| 1932 | } |
| 1933 | *private_data_start = private_data_ptr; |
| 1934 | } |
| 1935 | |
| 1936 | /* Returns with a frame_types (always < 0) if no need for frame. */ |
| 1937 | static int get_framesize(compiler_common *common, PCRE2_SPTR cc, PCRE2_SPTR ccend, BOOL recursive, BOOL *needs_control_head) |
| 1938 | { |
| 1939 | int length = 0; |
| 1940 | int possessive = 0; |
| 1941 | BOOL stack_restore = FALSE; |
| 1942 | BOOL setsom_found = recursive; |
| 1943 | BOOL setmark_found = recursive; |
| 1944 | /* The last capture is a local variable even for recursions. */ |
| 1945 | BOOL capture_last_found = FALSE; |
| 1946 | |
| 1947 | #if defined DEBUG_FORCE_CONTROL_HEAD && DEBUG_FORCE_CONTROL_HEAD |
| 1948 | SLJIT_ASSERT(common->control_head_ptr != 0); |
| 1949 | *needs_control_head = TRUE; |
| 1950 | #else |
| 1951 | *needs_control_head = FALSE; |
| 1952 | #endif |
| 1953 | |
| 1954 | if (ccend == NULL) |
| 1955 | { |
| 1956 | ccend = bracketend(cc) - (1 + LINK_SIZE); |
| 1957 | if (!recursive && (*cc == OP_CBRAPOS || *cc == OP_SCBRAPOS)) |
| 1958 | { |
| 1959 | possessive = length = (common->capture_last_ptr != 0) ? 5 : 3; |
| 1960 | /* This is correct regardless of common->capture_last_ptr. */ |
| 1961 | capture_last_found = TRUE; |
| 1962 | } |
| 1963 | cc = next_opcode(common, cc); |
| 1964 | } |
| 1965 | |
| 1966 | SLJIT_ASSERT(cc != NULL); |
| 1967 | while (cc < ccend) |
| 1968 | switch(*cc) |
| 1969 | { |
| 1970 | case OP_SET_SOM: |
| 1971 | SLJIT_ASSERT(common->has_set_som); |
| 1972 | stack_restore = TRUE; |
| 1973 | if (!setsom_found) |
| 1974 | { |
| 1975 | length += 2; |
| 1976 | setsom_found = TRUE; |
| 1977 | } |
| 1978 | cc += 1; |
| 1979 | break; |
| 1980 | |
| 1981 | case OP_MARK: |
| 1982 | case OP_COMMIT_ARG: |
| 1983 | case OP_PRUNE_ARG: |
| 1984 | case OP_THEN_ARG: |
| 1985 | SLJIT_ASSERT(common->mark_ptr != 0); |
| 1986 | stack_restore = TRUE; |
| 1987 | if (!setmark_found) |
| 1988 | { |
| 1989 | length += 2; |
| 1990 | setmark_found = TRUE; |
| 1991 | } |
| 1992 | if (common->control_head_ptr != 0) |
| 1993 | *needs_control_head = TRUE; |
| 1994 | cc += 1 + 2 + cc[1]; |
| 1995 | break; |
| 1996 | |
| 1997 | case OP_RECURSE: |
| 1998 | stack_restore = TRUE; |
| 1999 | if (common->has_set_som && !setsom_found) |
| 2000 | { |
| 2001 | length += 2; |
| 2002 | setsom_found = TRUE; |
| 2003 | } |
| 2004 | if (common->mark_ptr != 0 && !setmark_found) |
| 2005 | { |
| 2006 | length += 2; |
| 2007 | setmark_found = TRUE; |
| 2008 | } |
| 2009 | if (common->capture_last_ptr != 0 && !capture_last_found) |
| 2010 | { |
| 2011 | length += 2; |
| 2012 | capture_last_found = TRUE; |
| 2013 | } |
| 2014 | cc += 1 + LINK_SIZE; |
| 2015 | break; |
| 2016 | |
| 2017 | case OP_CBRA: |
| 2018 | case OP_CBRAPOS: |
| 2019 | case OP_SCBRA: |
| 2020 | case OP_SCBRAPOS: |
| 2021 | stack_restore = TRUE; |
| 2022 | if (common->capture_last_ptr != 0 && !capture_last_found) |
| 2023 | { |
| 2024 | length += 2; |
| 2025 | capture_last_found = TRUE; |
| 2026 | } |
| 2027 | length += 3; |
| 2028 | cc += 1 + LINK_SIZE + IMM2_SIZE; |
| 2029 | break; |
| 2030 | |
| 2031 | case OP_THEN: |
| 2032 | stack_restore = TRUE; |
| 2033 | if (common->control_head_ptr != 0) |
| 2034 | *needs_control_head = TRUE; |
| 2035 | cc ++; |
| 2036 | break; |
| 2037 | |
| 2038 | default: |
| 2039 | stack_restore = TRUE; |
| 2040 | /* Fall through. */ |
| 2041 | |
| 2042 | case OP_NOT_WORD_BOUNDARY: |
| 2043 | case OP_WORD_BOUNDARY: |
| 2044 | case OP_NOT_DIGIT: |
| 2045 | case OP_DIGIT: |
| 2046 | case OP_NOT_WHITESPACE: |
| 2047 | case OP_WHITESPACE: |
| 2048 | case OP_NOT_WORDCHAR: |
| 2049 | case OP_WORDCHAR: |
| 2050 | case OP_ANY: |
| 2051 | case OP_ALLANY: |
| 2052 | case OP_ANYBYTE: |
| 2053 | case OP_NOTPROP: |
| 2054 | case OP_PROP: |
| 2055 | case OP_ANYNL: |
| 2056 | case OP_NOT_HSPACE: |
| 2057 | case OP_HSPACE: |
| 2058 | case OP_NOT_VSPACE: |
| 2059 | case OP_VSPACE: |
| 2060 | case OP_EXTUNI: |
| 2061 | case OP_EODN: |
| 2062 | case OP_EOD: |
| 2063 | case OP_CIRC: |
| 2064 | case OP_CIRCM: |
| 2065 | case OP_DOLL: |
| 2066 | case OP_DOLLM: |
| 2067 | case OP_CHAR: |
| 2068 | case OP_CHARI: |
| 2069 | case OP_NOT: |
| 2070 | case OP_NOTI: |
| 2071 | |
| 2072 | case OP_EXACT: |
| 2073 | case OP_POSSTAR: |
| 2074 | case OP_POSPLUS: |
| 2075 | case OP_POSQUERY: |
| 2076 | case OP_POSUPTO: |
| 2077 | |
| 2078 | case OP_EXACTI: |
| 2079 | case OP_POSSTARI: |
| 2080 | case OP_POSPLUSI: |
| 2081 | case OP_POSQUERYI: |
| 2082 | case OP_POSUPTOI: |
| 2083 | |
| 2084 | case OP_NOTEXACT: |
| 2085 | case OP_NOTPOSSTAR: |
| 2086 | case OP_NOTPOSPLUS: |
| 2087 | case OP_NOTPOSQUERY: |
| 2088 | case OP_NOTPOSUPTO: |
| 2089 | |
| 2090 | case OP_NOTEXACTI: |
| 2091 | case OP_NOTPOSSTARI: |
| 2092 | case OP_NOTPOSPLUSI: |
| 2093 | case OP_NOTPOSQUERYI: |
| 2094 | case OP_NOTPOSUPTOI: |
| 2095 | |
| 2096 | case OP_TYPEEXACT: |
| 2097 | case OP_TYPEPOSSTAR: |
| 2098 | case OP_TYPEPOSPLUS: |
| 2099 | case OP_TYPEPOSQUERY: |
| 2100 | case OP_TYPEPOSUPTO: |
| 2101 | |
| 2102 | case OP_CLASS: |
| 2103 | case OP_NCLASS: |
| 2104 | case OP_XCLASS: |
| 2105 | |
| 2106 | case OP_CALLOUT: |
| 2107 | case OP_CALLOUT_STR: |
| 2108 | |
| 2109 | cc = next_opcode(common, cc); |
| 2110 | SLJIT_ASSERT(cc != NULL); |
| 2111 | break; |
| 2112 | } |
| 2113 | |
| 2114 | /* Possessive quantifiers can use a special case. */ |
| 2115 | if (SLJIT_UNLIKELY(possessive == length)) |
| 2116 | return stack_restore ? no_frame : no_stack; |
| 2117 | |
| 2118 | if (length > 0) |
| 2119 | return length + 1; |
| 2120 | return stack_restore ? no_frame : no_stack; |
| 2121 | } |
| 2122 | |
| 2123 | static void init_frame(compiler_common *common, PCRE2_SPTR cc, PCRE2_SPTR ccend, int stackpos, int stacktop) |
| 2124 | { |
| 2125 | DEFINE_COMPILER; |
| 2126 | BOOL setsom_found = FALSE; |
| 2127 | BOOL setmark_found = FALSE; |
| 2128 | /* The last capture is a local variable even for recursions. */ |
| 2129 | BOOL capture_last_found = FALSE; |
| 2130 | int offset; |
| 2131 | |
| 2132 | /* >= 1 + shortest item size (2) */ |
| 2133 | SLJIT_UNUSED_ARG(stacktop); |
| 2134 | SLJIT_ASSERT(stackpos >= stacktop + 2); |
| 2135 | |
| 2136 | stackpos = STACK(stackpos); |
| 2137 | if (ccend == NULL) |
| 2138 | { |
| 2139 | ccend = bracketend(cc) - (1 + LINK_SIZE); |
| 2140 | if (*cc != OP_CBRAPOS && *cc != OP_SCBRAPOS) |
| 2141 | cc = next_opcode(common, cc); |
| 2142 | } |
| 2143 | |
| 2144 | SLJIT_ASSERT(cc != NULL); |
| 2145 | while (cc < ccend) |
| 2146 | switch(*cc) |
| 2147 | { |
| 2148 | case OP_SET_SOM: |
| 2149 | SLJIT_ASSERT(common->has_set_som); |
| 2150 | if (!setsom_found) |
| 2151 | { |
| 2152 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(0)); |
| 2153 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, -OVECTOR(0)); |
| 2154 | stackpos -= (int)sizeof(sljit_sw); |
| 2155 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0); |
| 2156 | stackpos -= (int)sizeof(sljit_sw); |
| 2157 | setsom_found = TRUE; |
| 2158 | } |
| 2159 | cc += 1; |
| 2160 | break; |
| 2161 | |
| 2162 | case OP_MARK: |
| 2163 | case OP_COMMIT_ARG: |
| 2164 | case OP_PRUNE_ARG: |
| 2165 | case OP_THEN_ARG: |
| 2166 | SLJIT_ASSERT(common->mark_ptr != 0); |
| 2167 | if (!setmark_found) |
| 2168 | { |
| 2169 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->mark_ptr); |
| 2170 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, -common->mark_ptr); |
| 2171 | stackpos -= (int)sizeof(sljit_sw); |
| 2172 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0); |
| 2173 | stackpos -= (int)sizeof(sljit_sw); |
| 2174 | setmark_found = TRUE; |
| 2175 | } |
| 2176 | cc += 1 + 2 + cc[1]; |
| 2177 | break; |
| 2178 | |
| 2179 | case OP_RECURSE: |
| 2180 | if (common->has_set_som && !setsom_found) |
| 2181 | { |
| 2182 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(0)); |
| 2183 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, -OVECTOR(0)); |
| 2184 | stackpos -= (int)sizeof(sljit_sw); |
| 2185 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0); |
| 2186 | stackpos -= (int)sizeof(sljit_sw); |
| 2187 | setsom_found = TRUE; |
| 2188 | } |
| 2189 | if (common->mark_ptr != 0 && !setmark_found) |
| 2190 | { |
| 2191 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->mark_ptr); |
| 2192 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, -common->mark_ptr); |
| 2193 | stackpos -= (int)sizeof(sljit_sw); |
| 2194 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0); |
| 2195 | stackpos -= (int)sizeof(sljit_sw); |
| 2196 | setmark_found = TRUE; |
| 2197 | } |
| 2198 | if (common->capture_last_ptr != 0 && !capture_last_found) |
| 2199 | { |
| 2200 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr); |
| 2201 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, -common->capture_last_ptr); |
| 2202 | stackpos -= (int)sizeof(sljit_sw); |
| 2203 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0); |
| 2204 | stackpos -= (int)sizeof(sljit_sw); |
| 2205 | capture_last_found = TRUE; |
| 2206 | } |
| 2207 | cc += 1 + LINK_SIZE; |
| 2208 | break; |
| 2209 | |
| 2210 | case OP_CBRA: |
| 2211 | case OP_CBRAPOS: |
| 2212 | case OP_SCBRA: |
| 2213 | case OP_SCBRAPOS: |
| 2214 | if (common->capture_last_ptr != 0 && !capture_last_found) |
| 2215 | { |
| 2216 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr); |
| 2217 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, -common->capture_last_ptr); |
| 2218 | stackpos -= (int)sizeof(sljit_sw); |
| 2219 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0); |
| 2220 | stackpos -= (int)sizeof(sljit_sw); |
| 2221 | capture_last_found = TRUE; |
| 2222 | } |
| 2223 | offset = (GET2(cc, 1 + LINK_SIZE)) << 1; |
| 2224 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, OVECTOR(offset)); |
| 2225 | stackpos -= (int)sizeof(sljit_sw); |
| 2226 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset)); |
| 2227 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1)); |
| 2228 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP1, 0); |
| 2229 | stackpos -= (int)sizeof(sljit_sw); |
| 2230 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, TMP2, 0); |
| 2231 | stackpos -= (int)sizeof(sljit_sw); |
| 2232 | |
| 2233 | cc += 1 + LINK_SIZE + IMM2_SIZE; |
| 2234 | break; |
| 2235 | |
| 2236 | default: |
| 2237 | cc = next_opcode(common, cc); |
| 2238 | SLJIT_ASSERT(cc != NULL); |
| 2239 | break; |
| 2240 | } |
| 2241 | |
| 2242 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), stackpos, SLJIT_IMM, 0); |
| 2243 | SLJIT_ASSERT(stackpos == STACK(stacktop)); |
| 2244 | } |
| 2245 | |
| 2246 | #define RECURSE_TMP_REG_COUNT 3 |
| 2247 | |
| 2248 | typedef struct delayed_mem_copy_status { |
| 2249 | struct sljit_compiler *compiler; |
| 2250 | int store_bases[RECURSE_TMP_REG_COUNT]; |
| 2251 | int store_offsets[RECURSE_TMP_REG_COUNT]; |
| 2252 | int tmp_regs[RECURSE_TMP_REG_COUNT]; |
| 2253 | int saved_tmp_regs[RECURSE_TMP_REG_COUNT]; |
| 2254 | int next_tmp_reg; |
| 2255 | } delayed_mem_copy_status; |
| 2256 | |
| 2257 | static void delayed_mem_copy_init(delayed_mem_copy_status *status, compiler_common *common) |
| 2258 | { |
| 2259 | int i; |
| 2260 | |
| 2261 | for (i = 0; i < RECURSE_TMP_REG_COUNT; i++) |
| 2262 | { |
| 2263 | SLJIT_ASSERT(status->tmp_regs[i] >= 0); |
| 2264 | SLJIT_ASSERT(sljit_get_register_index(status->saved_tmp_regs[i]) < 0 || status->tmp_regs[i] == status->saved_tmp_regs[i]); |
| 2265 | |
| 2266 | status->store_bases[i] = -1; |
| 2267 | } |
| 2268 | status->next_tmp_reg = 0; |
| 2269 | status->compiler = common->compiler; |
| 2270 | } |
| 2271 | |
| 2272 | static void delayed_mem_copy_move(delayed_mem_copy_status *status, int load_base, sljit_sw load_offset, |
| 2273 | int store_base, sljit_sw store_offset) |
| 2274 | { |
| 2275 | struct sljit_compiler *compiler = status->compiler; |
| 2276 | int next_tmp_reg = status->next_tmp_reg; |
| 2277 | int tmp_reg = status->tmp_regs[next_tmp_reg]; |
| 2278 | |
| 2279 | SLJIT_ASSERT(load_base > 0 && store_base > 0); |
| 2280 | |
| 2281 | if (status->store_bases[next_tmp_reg] == -1) |
| 2282 | { |
| 2283 | /* Preserve virtual registers. */ |
| 2284 | if (sljit_get_register_index(status->saved_tmp_regs[next_tmp_reg]) < 0) |
| 2285 | OP1(SLJIT_MOV, status->saved_tmp_regs[next_tmp_reg], 0, tmp_reg, 0); |
| 2286 | } |
| 2287 | else |
| 2288 | OP1(SLJIT_MOV, SLJIT_MEM1(status->store_bases[next_tmp_reg]), status->store_offsets[next_tmp_reg], tmp_reg, 0); |
| 2289 | |
| 2290 | OP1(SLJIT_MOV, tmp_reg, 0, SLJIT_MEM1(load_base), load_offset); |
| 2291 | status->store_bases[next_tmp_reg] = store_base; |
| 2292 | status->store_offsets[next_tmp_reg] = store_offset; |
| 2293 | |
| 2294 | status->next_tmp_reg = (next_tmp_reg + 1) % RECURSE_TMP_REG_COUNT; |
| 2295 | } |
| 2296 | |
| 2297 | static void delayed_mem_copy_finish(delayed_mem_copy_status *status) |
| 2298 | { |
| 2299 | struct sljit_compiler *compiler = status->compiler; |
| 2300 | int next_tmp_reg = status->next_tmp_reg; |
| 2301 | int tmp_reg, saved_tmp_reg, i; |
| 2302 | |
| 2303 | for (i = 0; i < RECURSE_TMP_REG_COUNT; i++) |
| 2304 | { |
| 2305 | if (status->store_bases[next_tmp_reg] != -1) |
| 2306 | { |
| 2307 | tmp_reg = status->tmp_regs[next_tmp_reg]; |
| 2308 | saved_tmp_reg = status->saved_tmp_regs[next_tmp_reg]; |
| 2309 | |
| 2310 | OP1(SLJIT_MOV, SLJIT_MEM1(status->store_bases[next_tmp_reg]), status->store_offsets[next_tmp_reg], tmp_reg, 0); |
| 2311 | |
| 2312 | /* Restore virtual registers. */ |
| 2313 | if (sljit_get_register_index(saved_tmp_reg) < 0) |
| 2314 | OP1(SLJIT_MOV, tmp_reg, 0, saved_tmp_reg, 0); |
| 2315 | } |
| 2316 | |
| 2317 | next_tmp_reg = (next_tmp_reg + 1) % RECURSE_TMP_REG_COUNT; |
| 2318 | } |
| 2319 | } |
| 2320 | |
| 2321 | #undef RECURSE_TMP_REG_COUNT |
| 2322 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2323 | static BOOL recurse_check_bit(compiler_common *common, sljit_sw bit_index) |
| 2324 | { |
| 2325 | uint8_t *byte; |
| 2326 | uint8_t mask; |
| 2327 | |
| 2328 | SLJIT_ASSERT((bit_index & (sizeof(sljit_sw) - 1)) == 0); |
| 2329 | |
| 2330 | bit_index >>= SLJIT_WORD_SHIFT; |
| 2331 | |
| 2332 | SLJIT_ASSERT((bit_index >> 3) < common->recurse_bitset_size); |
| 2333 | |
| 2334 | mask = 1 << (bit_index & 0x7); |
| 2335 | byte = common->recurse_bitset + (bit_index >> 3); |
| 2336 | |
| 2337 | if (*byte & mask) |
| 2338 | return FALSE; |
| 2339 | |
| 2340 | *byte |= mask; |
| 2341 | return TRUE; |
| 2342 | } |
| 2343 | |
| 2344 | enum get_recurse_flags { |
| 2345 | recurse_flag_quit_found = (1 << 0), |
| 2346 | recurse_flag_accept_found = (1 << 1), |
| 2347 | recurse_flag_setsom_found = (1 << 2), |
| 2348 | recurse_flag_setmark_found = (1 << 3), |
| 2349 | recurse_flag_control_head_found = (1 << 4), |
| 2350 | }; |
| 2351 | |
| 2352 | static int get_recurse_data_length(compiler_common *common, PCRE2_SPTR cc, PCRE2_SPTR ccend, uint32_t *result_flags) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2353 | { |
| 2354 | int length = 1; |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2355 | int size, offset; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2356 | PCRE2_SPTR alternative; |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2357 | uint32_t recurse_flags = 0; |
| 2358 | |
| 2359 | memset(common->recurse_bitset, 0, common->recurse_bitset_size); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2360 | |
| 2361 | #if defined DEBUG_FORCE_CONTROL_HEAD && DEBUG_FORCE_CONTROL_HEAD |
| 2362 | SLJIT_ASSERT(common->control_head_ptr != 0); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2363 | recurse_flags |= recurse_flag_control_head_found; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2364 | #endif |
| 2365 | |
| 2366 | /* Calculate the sum of the private machine words. */ |
| 2367 | while (cc < ccend) |
| 2368 | { |
| 2369 | size = 0; |
| 2370 | switch(*cc) |
| 2371 | { |
| 2372 | case OP_SET_SOM: |
| 2373 | SLJIT_ASSERT(common->has_set_som); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2374 | recurse_flags |= recurse_flag_setsom_found; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2375 | cc += 1; |
| 2376 | break; |
| 2377 | |
| 2378 | case OP_RECURSE: |
| 2379 | if (common->has_set_som) |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2380 | recurse_flags |= recurse_flag_setsom_found; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2381 | if (common->mark_ptr != 0) |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2382 | recurse_flags |= recurse_flag_setmark_found; |
| 2383 | if (common->capture_last_ptr != 0 && recurse_check_bit(common, common->capture_last_ptr)) |
| 2384 | length++; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2385 | cc += 1 + LINK_SIZE; |
| 2386 | break; |
| 2387 | |
| 2388 | case OP_KET: |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2389 | offset = PRIVATE_DATA(cc); |
| 2390 | if (offset != 0) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2391 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2392 | if (recurse_check_bit(common, offset)) |
| 2393 | length++; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2394 | SLJIT_ASSERT(PRIVATE_DATA(cc + 1) != 0); |
| 2395 | cc += PRIVATE_DATA(cc + 1); |
| 2396 | } |
| 2397 | cc += 1 + LINK_SIZE; |
| 2398 | break; |
| 2399 | |
| 2400 | case OP_ASSERT: |
| 2401 | case OP_ASSERT_NOT: |
| 2402 | case OP_ASSERTBACK: |
| 2403 | case OP_ASSERTBACK_NOT: |
| 2404 | case OP_ASSERT_NA: |
| 2405 | case OP_ASSERTBACK_NA: |
| 2406 | case OP_ONCE: |
| 2407 | case OP_SCRIPT_RUN: |
| 2408 | case OP_BRAPOS: |
| 2409 | case OP_SBRA: |
| 2410 | case OP_SBRAPOS: |
| 2411 | case OP_SCOND: |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2412 | SLJIT_ASSERT(PRIVATE_DATA(cc) != 0); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2413 | if (recurse_check_bit(common, PRIVATE_DATA(cc))) |
| 2414 | length++; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2415 | cc += 1 + LINK_SIZE; |
| 2416 | break; |
| 2417 | |
| 2418 | case OP_CBRA: |
| 2419 | case OP_SCBRA: |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2420 | offset = GET2(cc, 1 + LINK_SIZE); |
| 2421 | if (recurse_check_bit(common, OVECTOR(offset << 1))) |
| 2422 | { |
| 2423 | SLJIT_ASSERT(recurse_check_bit(common, OVECTOR((offset << 1) + 1))); |
| 2424 | length += 2; |
| 2425 | } |
| 2426 | if (common->optimized_cbracket[offset] == 0 && recurse_check_bit(common, OVECTOR_PRIV(offset))) |
| 2427 | length++; |
| 2428 | if (common->capture_last_ptr != 0 && recurse_check_bit(common, common->capture_last_ptr)) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2429 | length++; |
| 2430 | cc += 1 + LINK_SIZE + IMM2_SIZE; |
| 2431 | break; |
| 2432 | |
| 2433 | case OP_CBRAPOS: |
| 2434 | case OP_SCBRAPOS: |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2435 | offset = GET2(cc, 1 + LINK_SIZE); |
| 2436 | if (recurse_check_bit(common, OVECTOR(offset << 1))) |
| 2437 | { |
| 2438 | SLJIT_ASSERT(recurse_check_bit(common, OVECTOR((offset << 1) + 1))); |
| 2439 | length += 2; |
| 2440 | } |
| 2441 | if (recurse_check_bit(common, OVECTOR_PRIV(offset))) |
| 2442 | length++; |
| 2443 | if (recurse_check_bit(common, PRIVATE_DATA(cc))) |
| 2444 | length++; |
| 2445 | if (common->capture_last_ptr != 0 && recurse_check_bit(common, common->capture_last_ptr)) |
| 2446 | length++; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2447 | cc += 1 + LINK_SIZE + IMM2_SIZE; |
| 2448 | break; |
| 2449 | |
| 2450 | case OP_COND: |
| 2451 | /* Might be a hidden SCOND. */ |
| 2452 | alternative = cc + GET(cc, 1); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2453 | if ((*alternative == OP_KETRMAX || *alternative == OP_KETRMIN) && recurse_check_bit(common, PRIVATE_DATA(cc))) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2454 | length++; |
| 2455 | cc += 1 + LINK_SIZE; |
| 2456 | break; |
| 2457 | |
| 2458 | CASE_ITERATOR_PRIVATE_DATA_1 |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2459 | offset = PRIVATE_DATA(cc); |
| 2460 | if (offset != 0 && recurse_check_bit(common, offset)) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2461 | length++; |
| 2462 | cc += 2; |
| 2463 | #ifdef SUPPORT_UNICODE |
| 2464 | if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]); |
| 2465 | #endif |
| 2466 | break; |
| 2467 | |
| 2468 | CASE_ITERATOR_PRIVATE_DATA_2A |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2469 | offset = PRIVATE_DATA(cc); |
| 2470 | if (offset != 0 && recurse_check_bit(common, offset)) |
| 2471 | { |
| 2472 | SLJIT_ASSERT(recurse_check_bit(common, offset + sizeof(sljit_sw))); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2473 | length += 2; |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2474 | } |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2475 | cc += 2; |
| 2476 | #ifdef SUPPORT_UNICODE |
| 2477 | if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]); |
| 2478 | #endif |
| 2479 | break; |
| 2480 | |
| 2481 | CASE_ITERATOR_PRIVATE_DATA_2B |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2482 | offset = PRIVATE_DATA(cc); |
| 2483 | if (offset != 0 && recurse_check_bit(common, offset)) |
| 2484 | { |
| 2485 | SLJIT_ASSERT(recurse_check_bit(common, offset + sizeof(sljit_sw))); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2486 | length += 2; |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2487 | } |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2488 | cc += 2 + IMM2_SIZE; |
| 2489 | #ifdef SUPPORT_UNICODE |
| 2490 | if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]); |
| 2491 | #endif |
| 2492 | break; |
| 2493 | |
| 2494 | CASE_ITERATOR_TYPE_PRIVATE_DATA_1 |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2495 | offset = PRIVATE_DATA(cc); |
| 2496 | if (offset != 0 && recurse_check_bit(common, offset)) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2497 | length++; |
| 2498 | cc += 1; |
| 2499 | break; |
| 2500 | |
| 2501 | CASE_ITERATOR_TYPE_PRIVATE_DATA_2A |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2502 | offset = PRIVATE_DATA(cc); |
| 2503 | if (offset != 0 && recurse_check_bit(common, offset)) |
| 2504 | { |
| 2505 | SLJIT_ASSERT(recurse_check_bit(common, offset + sizeof(sljit_sw))); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2506 | length += 2; |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2507 | } |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2508 | cc += 1; |
| 2509 | break; |
| 2510 | |
| 2511 | CASE_ITERATOR_TYPE_PRIVATE_DATA_2B |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2512 | offset = PRIVATE_DATA(cc); |
| 2513 | if (offset != 0 && recurse_check_bit(common, offset)) |
| 2514 | { |
| 2515 | SLJIT_ASSERT(recurse_check_bit(common, offset + sizeof(sljit_sw))); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2516 | length += 2; |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2517 | } |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2518 | cc += 1 + IMM2_SIZE; |
| 2519 | break; |
| 2520 | |
| 2521 | case OP_CLASS: |
| 2522 | case OP_NCLASS: |
| 2523 | #if defined SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH != 8 |
| 2524 | case OP_XCLASS: |
| 2525 | size = (*cc == OP_XCLASS) ? GET(cc, 1) : 1 + 32 / (int)sizeof(PCRE2_UCHAR); |
| 2526 | #else |
| 2527 | size = 1 + 32 / (int)sizeof(PCRE2_UCHAR); |
| 2528 | #endif |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2529 | |
| 2530 | offset = PRIVATE_DATA(cc); |
| 2531 | if (offset != 0 && recurse_check_bit(common, offset)) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2532 | length += get_class_iterator_size(cc + size); |
| 2533 | cc += size; |
| 2534 | break; |
| 2535 | |
| 2536 | case OP_MARK: |
| 2537 | case OP_COMMIT_ARG: |
| 2538 | case OP_PRUNE_ARG: |
| 2539 | case OP_THEN_ARG: |
| 2540 | SLJIT_ASSERT(common->mark_ptr != 0); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2541 | recurse_flags |= recurse_flag_setmark_found; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2542 | if (common->control_head_ptr != 0) |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2543 | recurse_flags |= recurse_flag_control_head_found; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2544 | if (*cc != OP_MARK) |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2545 | recurse_flags |= recurse_flag_quit_found; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2546 | |
| 2547 | cc += 1 + 2 + cc[1]; |
| 2548 | break; |
| 2549 | |
| 2550 | case OP_PRUNE: |
| 2551 | case OP_SKIP: |
| 2552 | case OP_COMMIT: |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2553 | recurse_flags |= recurse_flag_quit_found; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2554 | cc++; |
| 2555 | break; |
| 2556 | |
| 2557 | case OP_SKIP_ARG: |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2558 | recurse_flags |= recurse_flag_quit_found; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2559 | cc += 1 + 2 + cc[1]; |
| 2560 | break; |
| 2561 | |
| 2562 | case OP_THEN: |
| 2563 | SLJIT_ASSERT(common->control_head_ptr != 0); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2564 | recurse_flags |= recurse_flag_quit_found | recurse_flag_control_head_found; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2565 | cc++; |
| 2566 | break; |
| 2567 | |
| 2568 | case OP_ACCEPT: |
| 2569 | case OP_ASSERT_ACCEPT: |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2570 | recurse_flags |= recurse_flag_accept_found; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2571 | cc++; |
| 2572 | break; |
| 2573 | |
| 2574 | default: |
| 2575 | cc = next_opcode(common, cc); |
| 2576 | SLJIT_ASSERT(cc != NULL); |
| 2577 | break; |
| 2578 | } |
| 2579 | } |
| 2580 | SLJIT_ASSERT(cc == ccend); |
| 2581 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2582 | if (recurse_flags & recurse_flag_control_head_found) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2583 | length++; |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2584 | if (recurse_flags & recurse_flag_quit_found) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2585 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2586 | if (recurse_flags & recurse_flag_setsom_found) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2587 | length++; |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2588 | if (recurse_flags & recurse_flag_setmark_found) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2589 | length++; |
| 2590 | } |
| 2591 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2592 | *result_flags = recurse_flags; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2593 | return length; |
| 2594 | } |
| 2595 | |
| 2596 | enum copy_recurse_data_types { |
| 2597 | recurse_copy_from_global, |
| 2598 | recurse_copy_private_to_global, |
| 2599 | recurse_copy_shared_to_global, |
| 2600 | recurse_copy_kept_shared_to_global, |
| 2601 | recurse_swap_global |
| 2602 | }; |
| 2603 | |
| 2604 | static void copy_recurse_data(compiler_common *common, PCRE2_SPTR cc, PCRE2_SPTR ccend, |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2605 | int type, int stackptr, int stacktop, uint32_t recurse_flags) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2606 | { |
| 2607 | delayed_mem_copy_status status; |
| 2608 | PCRE2_SPTR alternative; |
| 2609 | sljit_sw private_srcw[2]; |
| 2610 | sljit_sw shared_srcw[3]; |
| 2611 | sljit_sw kept_shared_srcw[2]; |
| 2612 | int private_count, shared_count, kept_shared_count; |
| 2613 | int from_sp, base_reg, offset, i; |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2614 | |
| 2615 | memset(common->recurse_bitset, 0, common->recurse_bitset_size); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2616 | |
| 2617 | #if defined DEBUG_FORCE_CONTROL_HEAD && DEBUG_FORCE_CONTROL_HEAD |
| 2618 | SLJIT_ASSERT(common->control_head_ptr != 0); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2619 | recurse_check_bit(common, common->control_head_ptr); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2620 | #endif |
| 2621 | |
| 2622 | switch (type) |
| 2623 | { |
| 2624 | case recurse_copy_from_global: |
| 2625 | from_sp = TRUE; |
| 2626 | base_reg = STACK_TOP; |
| 2627 | break; |
| 2628 | |
| 2629 | case recurse_copy_private_to_global: |
| 2630 | case recurse_copy_shared_to_global: |
| 2631 | case recurse_copy_kept_shared_to_global: |
| 2632 | from_sp = FALSE; |
| 2633 | base_reg = STACK_TOP; |
| 2634 | break; |
| 2635 | |
| 2636 | default: |
| 2637 | SLJIT_ASSERT(type == recurse_swap_global); |
| 2638 | from_sp = FALSE; |
| 2639 | base_reg = TMP2; |
| 2640 | break; |
| 2641 | } |
| 2642 | |
| 2643 | stackptr = STACK(stackptr); |
| 2644 | stacktop = STACK(stacktop); |
| 2645 | |
| 2646 | status.tmp_regs[0] = TMP1; |
| 2647 | status.saved_tmp_regs[0] = TMP1; |
| 2648 | |
| 2649 | if (base_reg != TMP2) |
| 2650 | { |
| 2651 | status.tmp_regs[1] = TMP2; |
| 2652 | status.saved_tmp_regs[1] = TMP2; |
| 2653 | } |
| 2654 | else |
| 2655 | { |
| 2656 | status.saved_tmp_regs[1] = RETURN_ADDR; |
| 2657 | if (HAS_VIRTUAL_REGISTERS) |
| 2658 | status.tmp_regs[1] = STR_PTR; |
| 2659 | else |
| 2660 | status.tmp_regs[1] = RETURN_ADDR; |
| 2661 | } |
| 2662 | |
| 2663 | status.saved_tmp_regs[2] = TMP3; |
| 2664 | if (HAS_VIRTUAL_REGISTERS) |
| 2665 | status.tmp_regs[2] = STR_END; |
| 2666 | else |
| 2667 | status.tmp_regs[2] = TMP3; |
| 2668 | |
| 2669 | delayed_mem_copy_init(&status, common); |
| 2670 | |
| 2671 | if (type != recurse_copy_shared_to_global && type != recurse_copy_kept_shared_to_global) |
| 2672 | { |
| 2673 | SLJIT_ASSERT(type == recurse_copy_from_global || type == recurse_copy_private_to_global || type == recurse_swap_global); |
| 2674 | |
| 2675 | if (!from_sp) |
| 2676 | delayed_mem_copy_move(&status, base_reg, stackptr, SLJIT_SP, common->recursive_head_ptr); |
| 2677 | |
| 2678 | if (from_sp || type == recurse_swap_global) |
| 2679 | delayed_mem_copy_move(&status, SLJIT_SP, common->recursive_head_ptr, base_reg, stackptr); |
| 2680 | } |
| 2681 | |
| 2682 | stackptr += sizeof(sljit_sw); |
| 2683 | |
| 2684 | #if defined DEBUG_FORCE_CONTROL_HEAD && DEBUG_FORCE_CONTROL_HEAD |
| 2685 | if (type != recurse_copy_shared_to_global) |
| 2686 | { |
| 2687 | if (!from_sp) |
| 2688 | delayed_mem_copy_move(&status, base_reg, stackptr, SLJIT_SP, common->control_head_ptr); |
| 2689 | |
| 2690 | if (from_sp || type == recurse_swap_global) |
| 2691 | delayed_mem_copy_move(&status, SLJIT_SP, common->control_head_ptr, base_reg, stackptr); |
| 2692 | } |
| 2693 | |
| 2694 | stackptr += sizeof(sljit_sw); |
| 2695 | #endif |
| 2696 | |
| 2697 | while (cc < ccend) |
| 2698 | { |
| 2699 | private_count = 0; |
| 2700 | shared_count = 0; |
| 2701 | kept_shared_count = 0; |
| 2702 | |
| 2703 | switch(*cc) |
| 2704 | { |
| 2705 | case OP_SET_SOM: |
| 2706 | SLJIT_ASSERT(common->has_set_som); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2707 | if ((recurse_flags & recurse_flag_quit_found) && recurse_check_bit(common, OVECTOR(0))) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2708 | { |
| 2709 | kept_shared_srcw[0] = OVECTOR(0); |
| 2710 | kept_shared_count = 1; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2711 | } |
| 2712 | cc += 1; |
| 2713 | break; |
| 2714 | |
| 2715 | case OP_RECURSE: |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2716 | if (recurse_flags & recurse_flag_quit_found) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2717 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2718 | if (common->has_set_som && recurse_check_bit(common, OVECTOR(0))) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2719 | { |
| 2720 | kept_shared_srcw[0] = OVECTOR(0); |
| 2721 | kept_shared_count = 1; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2722 | } |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2723 | if (common->mark_ptr != 0 && recurse_check_bit(common, common->mark_ptr)) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2724 | { |
| 2725 | kept_shared_srcw[kept_shared_count] = common->mark_ptr; |
| 2726 | kept_shared_count++; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2727 | } |
| 2728 | } |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2729 | if (common->capture_last_ptr != 0 && recurse_check_bit(common, common->capture_last_ptr)) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2730 | { |
| 2731 | shared_srcw[0] = common->capture_last_ptr; |
| 2732 | shared_count = 1; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2733 | } |
| 2734 | cc += 1 + LINK_SIZE; |
| 2735 | break; |
| 2736 | |
| 2737 | case OP_KET: |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2738 | private_srcw[0] = PRIVATE_DATA(cc); |
| 2739 | if (private_srcw[0] != 0) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2740 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2741 | if (recurse_check_bit(common, private_srcw[0])) |
| 2742 | private_count = 1; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2743 | SLJIT_ASSERT(PRIVATE_DATA(cc + 1) != 0); |
| 2744 | cc += PRIVATE_DATA(cc + 1); |
| 2745 | } |
| 2746 | cc += 1 + LINK_SIZE; |
| 2747 | break; |
| 2748 | |
| 2749 | case OP_ASSERT: |
| 2750 | case OP_ASSERT_NOT: |
| 2751 | case OP_ASSERTBACK: |
| 2752 | case OP_ASSERTBACK_NOT: |
| 2753 | case OP_ASSERT_NA: |
| 2754 | case OP_ASSERTBACK_NA: |
| 2755 | case OP_ONCE: |
| 2756 | case OP_SCRIPT_RUN: |
| 2757 | case OP_BRAPOS: |
| 2758 | case OP_SBRA: |
| 2759 | case OP_SBRAPOS: |
| 2760 | case OP_SCOND: |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2761 | private_srcw[0] = PRIVATE_DATA(cc); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2762 | if (recurse_check_bit(common, private_srcw[0])) |
| 2763 | private_count = 1; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2764 | cc += 1 + LINK_SIZE; |
| 2765 | break; |
| 2766 | |
| 2767 | case OP_CBRA: |
| 2768 | case OP_SCBRA: |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2769 | offset = GET2(cc, 1 + LINK_SIZE); |
| 2770 | shared_srcw[0] = OVECTOR(offset << 1); |
| 2771 | if (recurse_check_bit(common, shared_srcw[0])) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2772 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2773 | shared_srcw[1] = shared_srcw[0] + sizeof(sljit_sw); |
| 2774 | SLJIT_ASSERT(recurse_check_bit(common, shared_srcw[1])); |
| 2775 | shared_count = 2; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2776 | } |
| 2777 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2778 | if (common->capture_last_ptr != 0 && recurse_check_bit(common, common->capture_last_ptr)) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2779 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2780 | shared_srcw[shared_count] = common->capture_last_ptr; |
| 2781 | shared_count++; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2782 | } |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2783 | |
| 2784 | if (common->optimized_cbracket[offset] == 0) |
| 2785 | { |
| 2786 | private_srcw[0] = OVECTOR_PRIV(offset); |
| 2787 | if (recurse_check_bit(common, private_srcw[0])) |
| 2788 | private_count = 1; |
| 2789 | } |
| 2790 | |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2791 | cc += 1 + LINK_SIZE + IMM2_SIZE; |
| 2792 | break; |
| 2793 | |
| 2794 | case OP_CBRAPOS: |
| 2795 | case OP_SCBRAPOS: |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2796 | offset = GET2(cc, 1 + LINK_SIZE); |
| 2797 | shared_srcw[0] = OVECTOR(offset << 1); |
| 2798 | if (recurse_check_bit(common, shared_srcw[0])) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2799 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2800 | shared_srcw[1] = shared_srcw[0] + sizeof(sljit_sw); |
| 2801 | SLJIT_ASSERT(recurse_check_bit(common, shared_srcw[1])); |
| 2802 | shared_count = 2; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2803 | } |
| 2804 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2805 | if (common->capture_last_ptr != 0 && recurse_check_bit(common, common->capture_last_ptr)) |
| 2806 | { |
| 2807 | shared_srcw[shared_count] = common->capture_last_ptr; |
| 2808 | shared_count++; |
| 2809 | } |
| 2810 | |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2811 | private_srcw[0] = PRIVATE_DATA(cc); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2812 | if (recurse_check_bit(common, private_srcw[0])) |
| 2813 | private_count = 1; |
| 2814 | |
| 2815 | offset = OVECTOR_PRIV(offset); |
| 2816 | if (recurse_check_bit(common, offset)) |
| 2817 | { |
| 2818 | private_srcw[private_count] = offset; |
| 2819 | private_count++; |
| 2820 | } |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2821 | cc += 1 + LINK_SIZE + IMM2_SIZE; |
| 2822 | break; |
| 2823 | |
| 2824 | case OP_COND: |
| 2825 | /* Might be a hidden SCOND. */ |
| 2826 | alternative = cc + GET(cc, 1); |
| 2827 | if (*alternative == OP_KETRMAX || *alternative == OP_KETRMIN) |
| 2828 | { |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2829 | private_srcw[0] = PRIVATE_DATA(cc); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2830 | if (recurse_check_bit(common, private_srcw[0])) |
| 2831 | private_count = 1; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2832 | } |
| 2833 | cc += 1 + LINK_SIZE; |
| 2834 | break; |
| 2835 | |
| 2836 | CASE_ITERATOR_PRIVATE_DATA_1 |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2837 | private_srcw[0] = PRIVATE_DATA(cc); |
| 2838 | if (private_srcw[0] != 0 && recurse_check_bit(common, private_srcw[0])) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2839 | private_count = 1; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2840 | cc += 2; |
| 2841 | #ifdef SUPPORT_UNICODE |
| 2842 | if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]); |
| 2843 | #endif |
| 2844 | break; |
| 2845 | |
| 2846 | CASE_ITERATOR_PRIVATE_DATA_2A |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2847 | private_srcw[0] = PRIVATE_DATA(cc); |
| 2848 | if (private_srcw[0] != 0 && recurse_check_bit(common, private_srcw[0])) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2849 | { |
| 2850 | private_count = 2; |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2851 | private_srcw[1] = private_srcw[0] + sizeof(sljit_sw); |
| 2852 | SLJIT_ASSERT(recurse_check_bit(common, private_srcw[1])); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2853 | } |
| 2854 | cc += 2; |
| 2855 | #ifdef SUPPORT_UNICODE |
| 2856 | if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]); |
| 2857 | #endif |
| 2858 | break; |
| 2859 | |
| 2860 | CASE_ITERATOR_PRIVATE_DATA_2B |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2861 | private_srcw[0] = PRIVATE_DATA(cc); |
| 2862 | if (private_srcw[0] != 0 && recurse_check_bit(common, private_srcw[0])) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2863 | { |
| 2864 | private_count = 2; |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2865 | private_srcw[1] = private_srcw[0] + sizeof(sljit_sw); |
| 2866 | SLJIT_ASSERT(recurse_check_bit(common, private_srcw[1])); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2867 | } |
| 2868 | cc += 2 + IMM2_SIZE; |
| 2869 | #ifdef SUPPORT_UNICODE |
| 2870 | if (common->utf && HAS_EXTRALEN(cc[-1])) cc += GET_EXTRALEN(cc[-1]); |
| 2871 | #endif |
| 2872 | break; |
| 2873 | |
| 2874 | CASE_ITERATOR_TYPE_PRIVATE_DATA_1 |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2875 | private_srcw[0] = PRIVATE_DATA(cc); |
| 2876 | if (private_srcw[0] != 0 && recurse_check_bit(common, private_srcw[0])) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2877 | private_count = 1; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2878 | cc += 1; |
| 2879 | break; |
| 2880 | |
| 2881 | CASE_ITERATOR_TYPE_PRIVATE_DATA_2A |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2882 | private_srcw[0] = PRIVATE_DATA(cc); |
| 2883 | if (private_srcw[0] != 0 && recurse_check_bit(common, private_srcw[0])) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2884 | { |
| 2885 | private_count = 2; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2886 | private_srcw[1] = private_srcw[0] + sizeof(sljit_sw); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2887 | SLJIT_ASSERT(recurse_check_bit(common, private_srcw[1])); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2888 | } |
| 2889 | cc += 1; |
| 2890 | break; |
| 2891 | |
| 2892 | CASE_ITERATOR_TYPE_PRIVATE_DATA_2B |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2893 | private_srcw[0] = PRIVATE_DATA(cc); |
| 2894 | if (private_srcw[0] != 0 && recurse_check_bit(common, private_srcw[0])) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2895 | { |
| 2896 | private_count = 2; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2897 | private_srcw[1] = private_srcw[0] + sizeof(sljit_sw); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2898 | SLJIT_ASSERT(recurse_check_bit(common, private_srcw[1])); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2899 | } |
| 2900 | cc += 1 + IMM2_SIZE; |
| 2901 | break; |
| 2902 | |
| 2903 | case OP_CLASS: |
| 2904 | case OP_NCLASS: |
| 2905 | #if defined SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH != 8 |
| 2906 | case OP_XCLASS: |
| 2907 | i = (*cc == OP_XCLASS) ? GET(cc, 1) : 1 + 32 / (int)sizeof(PCRE2_UCHAR); |
| 2908 | #else |
| 2909 | i = 1 + 32 / (int)sizeof(PCRE2_UCHAR); |
| 2910 | #endif |
| 2911 | if (PRIVATE_DATA(cc) != 0) |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2912 | { |
| 2913 | private_count = 1; |
| 2914 | private_srcw[0] = PRIVATE_DATA(cc); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2915 | switch(get_class_iterator_size(cc + i)) |
| 2916 | { |
| 2917 | case 1: |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2918 | break; |
| 2919 | |
| 2920 | case 2: |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2921 | if (recurse_check_bit(common, private_srcw[0])) |
| 2922 | { |
| 2923 | private_count = 2; |
| 2924 | private_srcw[1] = private_srcw[0] + sizeof(sljit_sw); |
| 2925 | SLJIT_ASSERT(recurse_check_bit(common, private_srcw[1])); |
| 2926 | } |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2927 | break; |
| 2928 | |
| 2929 | default: |
| 2930 | SLJIT_UNREACHABLE(); |
| 2931 | break; |
| 2932 | } |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2933 | } |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2934 | cc += i; |
| 2935 | break; |
| 2936 | |
| 2937 | case OP_MARK: |
| 2938 | case OP_COMMIT_ARG: |
| 2939 | case OP_PRUNE_ARG: |
| 2940 | case OP_THEN_ARG: |
| 2941 | SLJIT_ASSERT(common->mark_ptr != 0); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2942 | if ((recurse_flags & recurse_flag_quit_found) && recurse_check_bit(common, common->mark_ptr)) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2943 | { |
| 2944 | kept_shared_srcw[0] = common->mark_ptr; |
| 2945 | kept_shared_count = 1; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2946 | } |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2947 | if (common->control_head_ptr != 0 && recurse_check_bit(common, common->control_head_ptr)) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2948 | { |
| 2949 | private_srcw[0] = common->control_head_ptr; |
| 2950 | private_count = 1; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2951 | } |
| 2952 | cc += 1 + 2 + cc[1]; |
| 2953 | break; |
| 2954 | |
| 2955 | case OP_THEN: |
| 2956 | SLJIT_ASSERT(common->control_head_ptr != 0); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2957 | if (recurse_check_bit(common, common->control_head_ptr)) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2958 | { |
| 2959 | private_srcw[0] = common->control_head_ptr; |
| 2960 | private_count = 1; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2961 | } |
| 2962 | cc++; |
| 2963 | break; |
| 2964 | |
| 2965 | default: |
| 2966 | cc = next_opcode(common, cc); |
| 2967 | SLJIT_ASSERT(cc != NULL); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 2968 | continue; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 2969 | } |
| 2970 | |
| 2971 | if (type != recurse_copy_shared_to_global && type != recurse_copy_kept_shared_to_global) |
| 2972 | { |
| 2973 | SLJIT_ASSERT(type == recurse_copy_from_global || type == recurse_copy_private_to_global || type == recurse_swap_global); |
| 2974 | |
| 2975 | for (i = 0; i < private_count; i++) |
| 2976 | { |
| 2977 | SLJIT_ASSERT(private_srcw[i] != 0); |
| 2978 | |
| 2979 | if (!from_sp) |
| 2980 | delayed_mem_copy_move(&status, base_reg, stackptr, SLJIT_SP, private_srcw[i]); |
| 2981 | |
| 2982 | if (from_sp || type == recurse_swap_global) |
| 2983 | delayed_mem_copy_move(&status, SLJIT_SP, private_srcw[i], base_reg, stackptr); |
| 2984 | |
| 2985 | stackptr += sizeof(sljit_sw); |
| 2986 | } |
| 2987 | } |
| 2988 | else |
| 2989 | stackptr += sizeof(sljit_sw) * private_count; |
| 2990 | |
| 2991 | if (type != recurse_copy_private_to_global && type != recurse_copy_kept_shared_to_global) |
| 2992 | { |
| 2993 | SLJIT_ASSERT(type == recurse_copy_from_global || type == recurse_copy_shared_to_global || type == recurse_swap_global); |
| 2994 | |
| 2995 | for (i = 0; i < shared_count; i++) |
| 2996 | { |
| 2997 | SLJIT_ASSERT(shared_srcw[i] != 0); |
| 2998 | |
| 2999 | if (!from_sp) |
| 3000 | delayed_mem_copy_move(&status, base_reg, stackptr, SLJIT_SP, shared_srcw[i]); |
| 3001 | |
| 3002 | if (from_sp || type == recurse_swap_global) |
| 3003 | delayed_mem_copy_move(&status, SLJIT_SP, shared_srcw[i], base_reg, stackptr); |
| 3004 | |
| 3005 | stackptr += sizeof(sljit_sw); |
| 3006 | } |
| 3007 | } |
| 3008 | else |
| 3009 | stackptr += sizeof(sljit_sw) * shared_count; |
| 3010 | |
| 3011 | if (type != recurse_copy_private_to_global && type != recurse_swap_global) |
| 3012 | { |
| 3013 | SLJIT_ASSERT(type == recurse_copy_from_global || type == recurse_copy_shared_to_global || type == recurse_copy_kept_shared_to_global); |
| 3014 | |
| 3015 | for (i = 0; i < kept_shared_count; i++) |
| 3016 | { |
| 3017 | SLJIT_ASSERT(kept_shared_srcw[i] != 0); |
| 3018 | |
| 3019 | if (!from_sp) |
| 3020 | delayed_mem_copy_move(&status, base_reg, stackptr, SLJIT_SP, kept_shared_srcw[i]); |
| 3021 | |
| 3022 | if (from_sp || type == recurse_swap_global) |
| 3023 | delayed_mem_copy_move(&status, SLJIT_SP, kept_shared_srcw[i], base_reg, stackptr); |
| 3024 | |
| 3025 | stackptr += sizeof(sljit_sw); |
| 3026 | } |
| 3027 | } |
| 3028 | else |
| 3029 | stackptr += sizeof(sljit_sw) * kept_shared_count; |
| 3030 | } |
| 3031 | |
| 3032 | SLJIT_ASSERT(cc == ccend && stackptr == stacktop); |
| 3033 | |
| 3034 | delayed_mem_copy_finish(&status); |
| 3035 | } |
| 3036 | |
| 3037 | static SLJIT_INLINE PCRE2_SPTR set_then_offsets(compiler_common *common, PCRE2_SPTR cc, sljit_u8 *current_offset) |
| 3038 | { |
| 3039 | PCRE2_SPTR end = bracketend(cc); |
| 3040 | BOOL has_alternatives = cc[GET(cc, 1)] == OP_ALT; |
| 3041 | |
| 3042 | /* Assert captures then. */ |
| 3043 | if (*cc >= OP_ASSERT && *cc <= OP_ASSERTBACK_NA) |
| 3044 | current_offset = NULL; |
| 3045 | /* Conditional block does not. */ |
| 3046 | if (*cc == OP_COND || *cc == OP_SCOND) |
| 3047 | has_alternatives = FALSE; |
| 3048 | |
| 3049 | cc = next_opcode(common, cc); |
| 3050 | if (has_alternatives) |
| 3051 | current_offset = common->then_offsets + (cc - common->start); |
| 3052 | |
| 3053 | while (cc < end) |
| 3054 | { |
| 3055 | if ((*cc >= OP_ASSERT && *cc <= OP_ASSERTBACK_NA) || (*cc >= OP_ONCE && *cc <= OP_SCOND)) |
| 3056 | cc = set_then_offsets(common, cc, current_offset); |
| 3057 | else |
| 3058 | { |
| 3059 | if (*cc == OP_ALT && has_alternatives) |
| 3060 | current_offset = common->then_offsets + (cc + 1 + LINK_SIZE - common->start); |
| 3061 | if (*cc >= OP_THEN && *cc <= OP_THEN_ARG && current_offset != NULL) |
| 3062 | *current_offset = 1; |
| 3063 | cc = next_opcode(common, cc); |
| 3064 | } |
| 3065 | } |
| 3066 | |
| 3067 | return end; |
| 3068 | } |
| 3069 | |
| 3070 | #undef CASE_ITERATOR_PRIVATE_DATA_1 |
| 3071 | #undef CASE_ITERATOR_PRIVATE_DATA_2A |
| 3072 | #undef CASE_ITERATOR_PRIVATE_DATA_2B |
| 3073 | #undef CASE_ITERATOR_TYPE_PRIVATE_DATA_1 |
| 3074 | #undef CASE_ITERATOR_TYPE_PRIVATE_DATA_2A |
| 3075 | #undef CASE_ITERATOR_TYPE_PRIVATE_DATA_2B |
| 3076 | |
| 3077 | static SLJIT_INLINE BOOL is_powerof2(unsigned int value) |
| 3078 | { |
| 3079 | return (value & (value - 1)) == 0; |
| 3080 | } |
| 3081 | |
| 3082 | static SLJIT_INLINE void set_jumps(jump_list *list, struct sljit_label *label) |
| 3083 | { |
| 3084 | while (list) |
| 3085 | { |
| 3086 | /* sljit_set_label is clever enough to do nothing |
| 3087 | if either the jump or the label is NULL. */ |
| 3088 | SET_LABEL(list->jump, label); |
| 3089 | list = list->next; |
| 3090 | } |
| 3091 | } |
| 3092 | |
| 3093 | static SLJIT_INLINE void add_jump(struct sljit_compiler *compiler, jump_list **list, struct sljit_jump *jump) |
| 3094 | { |
| 3095 | jump_list *list_item = sljit_alloc_memory(compiler, sizeof(jump_list)); |
| 3096 | if (list_item) |
| 3097 | { |
| 3098 | list_item->next = *list; |
| 3099 | list_item->jump = jump; |
| 3100 | *list = list_item; |
| 3101 | } |
| 3102 | } |
| 3103 | |
| 3104 | static void add_stub(compiler_common *common, struct sljit_jump *start) |
| 3105 | { |
| 3106 | DEFINE_COMPILER; |
| 3107 | stub_list *list_item = sljit_alloc_memory(compiler, sizeof(stub_list)); |
| 3108 | |
| 3109 | if (list_item) |
| 3110 | { |
| 3111 | list_item->start = start; |
| 3112 | list_item->quit = LABEL(); |
| 3113 | list_item->next = common->stubs; |
| 3114 | common->stubs = list_item; |
| 3115 | } |
| 3116 | } |
| 3117 | |
| 3118 | static void flush_stubs(compiler_common *common) |
| 3119 | { |
| 3120 | DEFINE_COMPILER; |
| 3121 | stub_list *list_item = common->stubs; |
| 3122 | |
| 3123 | while (list_item) |
| 3124 | { |
| 3125 | JUMPHERE(list_item->start); |
| 3126 | add_jump(compiler, &common->stackalloc, JUMP(SLJIT_FAST_CALL)); |
| 3127 | JUMPTO(SLJIT_JUMP, list_item->quit); |
| 3128 | list_item = list_item->next; |
| 3129 | } |
| 3130 | common->stubs = NULL; |
| 3131 | } |
| 3132 | |
| 3133 | static SLJIT_INLINE void count_match(compiler_common *common) |
| 3134 | { |
| 3135 | DEFINE_COMPILER; |
| 3136 | |
| 3137 | OP2(SLJIT_SUB | SLJIT_SET_Z, COUNT_MATCH, 0, COUNT_MATCH, 0, SLJIT_IMM, 1); |
| 3138 | add_jump(compiler, &common->calllimit, JUMP(SLJIT_ZERO)); |
| 3139 | } |
| 3140 | |
| 3141 | static SLJIT_INLINE void allocate_stack(compiler_common *common, int size) |
| 3142 | { |
| 3143 | /* May destroy all locals and registers except TMP2. */ |
| 3144 | DEFINE_COMPILER; |
| 3145 | |
| 3146 | SLJIT_ASSERT(size > 0); |
| 3147 | OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, size * sizeof(sljit_sw)); |
| 3148 | #ifdef DESTROY_REGISTERS |
| 3149 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 12345); |
| 3150 | OP1(SLJIT_MOV, TMP3, 0, TMP1, 0); |
| 3151 | OP1(SLJIT_MOV, RETURN_ADDR, 0, TMP1, 0); |
| 3152 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS0, TMP1, 0); |
| 3153 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS1, TMP1, 0); |
| 3154 | #endif |
| 3155 | add_stub(common, CMP(SLJIT_LESS, STACK_TOP, 0, STACK_LIMIT, 0)); |
| 3156 | } |
| 3157 | |
| 3158 | static SLJIT_INLINE void free_stack(compiler_common *common, int size) |
| 3159 | { |
| 3160 | DEFINE_COMPILER; |
| 3161 | |
| 3162 | SLJIT_ASSERT(size > 0); |
| 3163 | OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, size * sizeof(sljit_sw)); |
| 3164 | } |
| 3165 | |
| 3166 | static sljit_uw * allocate_read_only_data(compiler_common *common, sljit_uw size) |
| 3167 | { |
| 3168 | DEFINE_COMPILER; |
| 3169 | sljit_uw *result; |
| 3170 | |
| 3171 | if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler))) |
| 3172 | return NULL; |
| 3173 | |
| 3174 | result = (sljit_uw *)SLJIT_MALLOC(size + sizeof(sljit_uw), compiler->allocator_data); |
| 3175 | if (SLJIT_UNLIKELY(result == NULL)) |
| 3176 | { |
| 3177 | sljit_set_compiler_memory_error(compiler); |
| 3178 | return NULL; |
| 3179 | } |
| 3180 | |
| 3181 | *(void**)result = common->read_only_data_head; |
| 3182 | common->read_only_data_head = (void *)result; |
| 3183 | return result + 1; |
| 3184 | } |
| 3185 | |
| 3186 | static SLJIT_INLINE void reset_ovector(compiler_common *common, int length) |
| 3187 | { |
| 3188 | DEFINE_COMPILER; |
| 3189 | struct sljit_label *loop; |
| 3190 | sljit_s32 i; |
| 3191 | |
| 3192 | /* At this point we can freely use all temporary registers. */ |
| 3193 | SLJIT_ASSERT(length > 1); |
| 3194 | /* TMP1 returns with begin - 1. */ |
| 3195 | OP2(SLJIT_SUB, SLJIT_R0, 0, SLJIT_MEM1(SLJIT_S0), SLJIT_OFFSETOF(jit_arguments, begin), SLJIT_IMM, IN_UCHARS(1)); |
| 3196 | if (length < 8) |
| 3197 | { |
| 3198 | for (i = 1; i < length; i++) |
| 3199 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(i), SLJIT_R0, 0); |
| 3200 | } |
| 3201 | else |
| 3202 | { |
| 3203 | if (sljit_emit_mem(compiler, SLJIT_MOV | SLJIT_MEM_SUPP | SLJIT_MEM_STORE | SLJIT_MEM_PRE, SLJIT_R0, SLJIT_MEM1(SLJIT_R1), sizeof(sljit_sw)) == SLJIT_SUCCESS) |
| 3204 | { |
| 3205 | GET_LOCAL_BASE(SLJIT_R1, 0, OVECTOR_START); |
| 3206 | OP1(SLJIT_MOV, SLJIT_R2, 0, SLJIT_IMM, length - 1); |
| 3207 | loop = LABEL(); |
| 3208 | sljit_emit_mem(compiler, SLJIT_MOV | SLJIT_MEM_STORE | SLJIT_MEM_PRE, SLJIT_R0, SLJIT_MEM1(SLJIT_R1), sizeof(sljit_sw)); |
| 3209 | OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_R2, 0, SLJIT_R2, 0, SLJIT_IMM, 1); |
| 3210 | JUMPTO(SLJIT_NOT_ZERO, loop); |
| 3211 | } |
| 3212 | else |
| 3213 | { |
| 3214 | GET_LOCAL_BASE(SLJIT_R1, 0, OVECTOR_START + sizeof(sljit_sw)); |
| 3215 | OP1(SLJIT_MOV, SLJIT_R2, 0, SLJIT_IMM, length - 1); |
| 3216 | loop = LABEL(); |
| 3217 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_R1), 0, SLJIT_R0, 0); |
| 3218 | OP2(SLJIT_ADD, SLJIT_R1, 0, SLJIT_R1, 0, SLJIT_IMM, sizeof(sljit_sw)); |
| 3219 | OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_R2, 0, SLJIT_R2, 0, SLJIT_IMM, 1); |
| 3220 | JUMPTO(SLJIT_NOT_ZERO, loop); |
| 3221 | } |
| 3222 | } |
| 3223 | } |
| 3224 | |
| 3225 | static SLJIT_INLINE void reset_early_fail(compiler_common *common) |
| 3226 | { |
| 3227 | DEFINE_COMPILER; |
| 3228 | sljit_u32 size = (sljit_u32)(common->early_fail_end_ptr - common->early_fail_start_ptr); |
| 3229 | sljit_u32 uncleared_size; |
| 3230 | sljit_s32 src = SLJIT_IMM; |
| 3231 | sljit_s32 i; |
| 3232 | struct sljit_label *loop; |
| 3233 | |
| 3234 | SLJIT_ASSERT(common->early_fail_start_ptr < common->early_fail_end_ptr); |
| 3235 | |
| 3236 | if (size == sizeof(sljit_sw)) |
| 3237 | { |
| 3238 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->early_fail_start_ptr, SLJIT_IMM, 0); |
| 3239 | return; |
| 3240 | } |
| 3241 | |
| 3242 | if (sljit_get_register_index(TMP3) >= 0 && !sljit_has_cpu_feature(SLJIT_HAS_ZERO_REGISTER)) |
| 3243 | { |
| 3244 | OP1(SLJIT_MOV, TMP3, 0, SLJIT_IMM, 0); |
| 3245 | src = TMP3; |
| 3246 | } |
| 3247 | |
| 3248 | if (size <= 6 * sizeof(sljit_sw)) |
| 3249 | { |
| 3250 | for (i = common->early_fail_start_ptr; i < common->early_fail_end_ptr; i += sizeof(sljit_sw)) |
| 3251 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), i, src, 0); |
| 3252 | return; |
| 3253 | } |
| 3254 | |
| 3255 | GET_LOCAL_BASE(TMP1, 0, common->early_fail_start_ptr); |
| 3256 | |
| 3257 | uncleared_size = ((size / sizeof(sljit_sw)) % 3) * sizeof(sljit_sw); |
| 3258 | |
| 3259 | OP2(SLJIT_ADD, TMP2, 0, TMP1, 0, SLJIT_IMM, size - uncleared_size); |
| 3260 | |
| 3261 | loop = LABEL(); |
| 3262 | OP1(SLJIT_MOV, SLJIT_MEM1(TMP1), 0, src, 0); |
| 3263 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 3 * sizeof(sljit_sw)); |
| 3264 | OP1(SLJIT_MOV, SLJIT_MEM1(TMP1), -2 * (sljit_sw)sizeof(sljit_sw), src, 0); |
| 3265 | OP1(SLJIT_MOV, SLJIT_MEM1(TMP1), -1 * (sljit_sw)sizeof(sljit_sw), src, 0); |
| 3266 | CMPTO(SLJIT_LESS, TMP1, 0, TMP2, 0, loop); |
| 3267 | |
| 3268 | if (uncleared_size >= sizeof(sljit_sw)) |
| 3269 | OP1(SLJIT_MOV, SLJIT_MEM1(TMP1), 0, src, 0); |
| 3270 | |
| 3271 | if (uncleared_size >= 2 * sizeof(sljit_sw)) |
| 3272 | OP1(SLJIT_MOV, SLJIT_MEM1(TMP1), sizeof(sljit_sw), src, 0); |
| 3273 | } |
| 3274 | |
| 3275 | static SLJIT_INLINE void do_reset_match(compiler_common *common, int length) |
| 3276 | { |
| 3277 | DEFINE_COMPILER; |
| 3278 | struct sljit_label *loop; |
| 3279 | int i; |
| 3280 | |
| 3281 | SLJIT_ASSERT(length > 1); |
| 3282 | /* OVECTOR(1) contains the "string begin - 1" constant. */ |
| 3283 | if (length > 2) |
| 3284 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(1)); |
| 3285 | if (length < 8) |
| 3286 | { |
| 3287 | for (i = 2; i < length; i++) |
| 3288 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(i), TMP1, 0); |
| 3289 | } |
| 3290 | else |
| 3291 | { |
| 3292 | if (sljit_emit_mem(compiler, SLJIT_MOV | SLJIT_MEM_SUPP | SLJIT_MEM_STORE | SLJIT_MEM_PRE, TMP1, SLJIT_MEM1(TMP2), sizeof(sljit_sw)) == SLJIT_SUCCESS) |
| 3293 | { |
| 3294 | GET_LOCAL_BASE(TMP2, 0, OVECTOR_START + sizeof(sljit_sw)); |
| 3295 | OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_IMM, length - 2); |
| 3296 | loop = LABEL(); |
| 3297 | sljit_emit_mem(compiler, SLJIT_MOV | SLJIT_MEM_STORE | SLJIT_MEM_PRE, TMP1, SLJIT_MEM1(TMP2), sizeof(sljit_sw)); |
| 3298 | OP2(SLJIT_SUB | SLJIT_SET_Z, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, 1); |
| 3299 | JUMPTO(SLJIT_NOT_ZERO, loop); |
| 3300 | } |
| 3301 | else |
| 3302 | { |
| 3303 | GET_LOCAL_BASE(TMP2, 0, OVECTOR_START + 2 * sizeof(sljit_sw)); |
| 3304 | OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_IMM, length - 2); |
| 3305 | loop = LABEL(); |
| 3306 | OP1(SLJIT_MOV, SLJIT_MEM1(TMP2), 0, TMP1, 0); |
| 3307 | OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, SLJIT_IMM, sizeof(sljit_sw)); |
| 3308 | OP2(SLJIT_SUB | SLJIT_SET_Z, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, 1); |
| 3309 | JUMPTO(SLJIT_NOT_ZERO, loop); |
| 3310 | } |
| 3311 | } |
| 3312 | |
| 3313 | if (!HAS_VIRTUAL_REGISTERS) |
| 3314 | OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(ARGUMENTS), SLJIT_OFFSETOF(jit_arguments, stack)); |
| 3315 | else |
| 3316 | OP1(SLJIT_MOV, STACK_TOP, 0, ARGUMENTS, 0); |
| 3317 | |
| 3318 | if (common->mark_ptr != 0) |
| 3319 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->mark_ptr, SLJIT_IMM, 0); |
| 3320 | if (common->control_head_ptr != 0) |
| 3321 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, SLJIT_IMM, 0); |
| 3322 | if (HAS_VIRTUAL_REGISTERS) |
| 3323 | OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(STACK_TOP), SLJIT_OFFSETOF(jit_arguments, stack)); |
| 3324 | |
| 3325 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->start_ptr); |
| 3326 | OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(STACK_TOP), SLJIT_OFFSETOF(struct sljit_stack, end)); |
| 3327 | } |
| 3328 | |
| 3329 | static sljit_sw SLJIT_FUNC do_search_mark(sljit_sw *current, PCRE2_SPTR skip_arg) |
| 3330 | { |
| 3331 | while (current != NULL) |
| 3332 | { |
| 3333 | switch (current[1]) |
| 3334 | { |
| 3335 | case type_then_trap: |
| 3336 | break; |
| 3337 | |
| 3338 | case type_mark: |
| 3339 | if (PRIV(strcmp)(skip_arg, (PCRE2_SPTR)current[2]) == 0) |
| 3340 | return current[3]; |
| 3341 | break; |
| 3342 | |
| 3343 | default: |
| 3344 | SLJIT_UNREACHABLE(); |
| 3345 | break; |
| 3346 | } |
| 3347 | SLJIT_ASSERT(current[0] == 0 || current < (sljit_sw*)current[0]); |
| 3348 | current = (sljit_sw*)current[0]; |
| 3349 | } |
| 3350 | return 0; |
| 3351 | } |
| 3352 | |
| 3353 | static SLJIT_INLINE void copy_ovector(compiler_common *common, int topbracket) |
| 3354 | { |
| 3355 | DEFINE_COMPILER; |
| 3356 | struct sljit_label *loop; |
| 3357 | BOOL has_pre; |
| 3358 | |
| 3359 | /* At this point we can freely use all registers. */ |
| 3360 | OP1(SLJIT_MOV, SLJIT_S2, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(1)); |
| 3361 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(1), STR_PTR, 0); |
| 3362 | |
| 3363 | if (HAS_VIRTUAL_REGISTERS) |
| 3364 | { |
| 3365 | OP1(SLJIT_MOV, SLJIT_R0, 0, ARGUMENTS, 0); |
| 3366 | OP1(SLJIT_MOV, SLJIT_S0, 0, SLJIT_MEM1(SLJIT_SP), common->start_ptr); |
| 3367 | if (common->mark_ptr != 0) |
| 3368 | OP1(SLJIT_MOV, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_SP), common->mark_ptr); |
| 3369 | OP1(SLJIT_MOV_U32, SLJIT_R1, 0, SLJIT_MEM1(SLJIT_R0), SLJIT_OFFSETOF(jit_arguments, oveccount)); |
| 3370 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_R0), SLJIT_OFFSETOF(jit_arguments, startchar_ptr), SLJIT_S0, 0); |
| 3371 | if (common->mark_ptr != 0) |
| 3372 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_R0), SLJIT_OFFSETOF(jit_arguments, mark_ptr), SLJIT_R2, 0); |
| 3373 | OP2(SLJIT_ADD, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_R0), SLJIT_OFFSETOF(jit_arguments, match_data), |
| 3374 | SLJIT_IMM, SLJIT_OFFSETOF(pcre2_match_data, ovector) - sizeof(PCRE2_SIZE)); |
| 3375 | } |
| 3376 | else |
| 3377 | { |
| 3378 | OP1(SLJIT_MOV, SLJIT_S0, 0, SLJIT_MEM1(SLJIT_SP), common->start_ptr); |
| 3379 | OP1(SLJIT_MOV, SLJIT_R2, 0, SLJIT_MEM1(ARGUMENTS), SLJIT_OFFSETOF(jit_arguments, match_data)); |
| 3380 | if (common->mark_ptr != 0) |
| 3381 | OP1(SLJIT_MOV, SLJIT_R0, 0, SLJIT_MEM1(SLJIT_SP), common->mark_ptr); |
| 3382 | OP1(SLJIT_MOV_U32, SLJIT_R1, 0, SLJIT_MEM1(ARGUMENTS), SLJIT_OFFSETOF(jit_arguments, oveccount)); |
| 3383 | OP1(SLJIT_MOV, SLJIT_MEM1(ARGUMENTS), SLJIT_OFFSETOF(jit_arguments, startchar_ptr), SLJIT_S0, 0); |
| 3384 | if (common->mark_ptr != 0) |
| 3385 | OP1(SLJIT_MOV, SLJIT_MEM1(ARGUMENTS), SLJIT_OFFSETOF(jit_arguments, mark_ptr), SLJIT_R0, 0); |
| 3386 | OP2(SLJIT_ADD, SLJIT_R2, 0, SLJIT_R2, 0, SLJIT_IMM, SLJIT_OFFSETOF(pcre2_match_data, ovector) - sizeof(PCRE2_SIZE)); |
| 3387 | } |
| 3388 | |
| 3389 | has_pre = sljit_emit_mem(compiler, SLJIT_MOV | SLJIT_MEM_SUPP | SLJIT_MEM_PRE, SLJIT_S1, SLJIT_MEM1(SLJIT_S0), sizeof(sljit_sw)) == SLJIT_SUCCESS; |
| 3390 | |
| 3391 | GET_LOCAL_BASE(SLJIT_S0, 0, OVECTOR_START - (has_pre ? sizeof(sljit_sw) : 0)); |
| 3392 | OP1(SLJIT_MOV, SLJIT_R0, 0, SLJIT_MEM1(HAS_VIRTUAL_REGISTERS ? SLJIT_R0 : ARGUMENTS), SLJIT_OFFSETOF(jit_arguments, begin)); |
| 3393 | |
| 3394 | loop = LABEL(); |
| 3395 | |
| 3396 | if (has_pre) |
| 3397 | sljit_emit_mem(compiler, SLJIT_MOV | SLJIT_MEM_PRE, SLJIT_S1, SLJIT_MEM1(SLJIT_S0), sizeof(sljit_sw)); |
| 3398 | else |
| 3399 | { |
| 3400 | OP1(SLJIT_MOV, SLJIT_S1, 0, SLJIT_MEM1(SLJIT_S0), 0); |
| 3401 | OP2(SLJIT_ADD, SLJIT_S0, 0, SLJIT_S0, 0, SLJIT_IMM, sizeof(sljit_sw)); |
| 3402 | } |
| 3403 | |
| 3404 | OP2(SLJIT_ADD, SLJIT_R2, 0, SLJIT_R2, 0, SLJIT_IMM, sizeof(PCRE2_SIZE)); |
| 3405 | OP2(SLJIT_SUB, SLJIT_S1, 0, SLJIT_S1, 0, SLJIT_R0, 0); |
| 3406 | /* Copy the integer value to the output buffer */ |
| 3407 | #if PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32 |
| 3408 | OP2(SLJIT_ASHR, SLJIT_S1, 0, SLJIT_S1, 0, SLJIT_IMM, UCHAR_SHIFT); |
| 3409 | #endif |
| 3410 | |
| 3411 | SLJIT_ASSERT(sizeof(PCRE2_SIZE) == 4 || sizeof(PCRE2_SIZE) == 8); |
| 3412 | OP1(((sizeof(PCRE2_SIZE) == 4) ? SLJIT_MOV_U32 : SLJIT_MOV), SLJIT_MEM1(SLJIT_R2), 0, SLJIT_S1, 0); |
| 3413 | |
| 3414 | OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_R1, 0, SLJIT_R1, 0, SLJIT_IMM, 1); |
| 3415 | JUMPTO(SLJIT_NOT_ZERO, loop); |
| 3416 | |
| 3417 | /* Calculate the return value, which is the maximum ovector value. */ |
| 3418 | if (topbracket > 1) |
| 3419 | { |
| 3420 | if (sljit_emit_mem(compiler, SLJIT_MOV | SLJIT_MEM_SUPP | SLJIT_MEM_PRE, SLJIT_R2, SLJIT_MEM1(SLJIT_R0), -(2 * (sljit_sw)sizeof(sljit_sw))) == SLJIT_SUCCESS) |
| 3421 | { |
| 3422 | GET_LOCAL_BASE(SLJIT_R0, 0, OVECTOR_START + topbracket * 2 * sizeof(sljit_sw)); |
| 3423 | OP1(SLJIT_MOV, SLJIT_R1, 0, SLJIT_IMM, topbracket + 1); |
| 3424 | |
| 3425 | /* OVECTOR(0) is never equal to SLJIT_S2. */ |
| 3426 | loop = LABEL(); |
| 3427 | sljit_emit_mem(compiler, SLJIT_MOV | SLJIT_MEM_PRE, SLJIT_R2, SLJIT_MEM1(SLJIT_R0), -(2 * (sljit_sw)sizeof(sljit_sw))); |
| 3428 | OP2(SLJIT_SUB, SLJIT_R1, 0, SLJIT_R1, 0, SLJIT_IMM, 1); |
| 3429 | CMPTO(SLJIT_EQUAL, SLJIT_R2, 0, SLJIT_S2, 0, loop); |
| 3430 | OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_R1, 0); |
| 3431 | } |
| 3432 | else |
| 3433 | { |
| 3434 | GET_LOCAL_BASE(SLJIT_R0, 0, OVECTOR_START + (topbracket - 1) * 2 * sizeof(sljit_sw)); |
| 3435 | OP1(SLJIT_MOV, SLJIT_R1, 0, SLJIT_IMM, topbracket + 1); |
| 3436 | |
| 3437 | /* OVECTOR(0) is never equal to SLJIT_S2. */ |
| 3438 | loop = LABEL(); |
| 3439 | OP1(SLJIT_MOV, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_R0), 0); |
| 3440 | OP2(SLJIT_SUB, SLJIT_R0, 0, SLJIT_R0, 0, SLJIT_IMM, 2 * (sljit_sw)sizeof(sljit_sw)); |
| 3441 | OP2(SLJIT_SUB, SLJIT_R1, 0, SLJIT_R1, 0, SLJIT_IMM, 1); |
| 3442 | CMPTO(SLJIT_EQUAL, SLJIT_R2, 0, SLJIT_S2, 0, loop); |
| 3443 | OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_R1, 0); |
| 3444 | } |
| 3445 | } |
| 3446 | else |
| 3447 | OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, 1); |
| 3448 | } |
| 3449 | |
| 3450 | static SLJIT_INLINE void return_with_partial_match(compiler_common *common, struct sljit_label *quit) |
| 3451 | { |
| 3452 | DEFINE_COMPILER; |
| 3453 | sljit_s32 mov_opcode; |
| 3454 | sljit_s32 arguments_reg = !HAS_VIRTUAL_REGISTERS ? ARGUMENTS : SLJIT_R1; |
| 3455 | |
| 3456 | SLJIT_COMPILE_ASSERT(STR_END == SLJIT_S0, str_end_must_be_saved_reg0); |
| 3457 | SLJIT_ASSERT(common->start_used_ptr != 0 && common->start_ptr != 0 |
| 3458 | && (common->mode == PCRE2_JIT_PARTIAL_SOFT ? common->hit_start != 0 : common->hit_start == 0)); |
| 3459 | |
| 3460 | if (arguments_reg != ARGUMENTS) |
| 3461 | OP1(SLJIT_MOV, arguments_reg, 0, ARGUMENTS, 0); |
| 3462 | OP1(SLJIT_MOV, SLJIT_R2, 0, SLJIT_MEM1(SLJIT_SP), |
| 3463 | common->mode == PCRE2_JIT_PARTIAL_SOFT ? common->hit_start : common->start_ptr); |
| 3464 | OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, PCRE2_ERROR_PARTIAL); |
| 3465 | |
| 3466 | /* Store match begin and end. */ |
| 3467 | OP1(SLJIT_MOV, SLJIT_S1, 0, SLJIT_MEM1(arguments_reg), SLJIT_OFFSETOF(jit_arguments, begin)); |
| 3468 | OP1(SLJIT_MOV, SLJIT_MEM1(arguments_reg), SLJIT_OFFSETOF(jit_arguments, startchar_ptr), SLJIT_R2, 0); |
| 3469 | OP1(SLJIT_MOV, SLJIT_R1, 0, SLJIT_MEM1(arguments_reg), SLJIT_OFFSETOF(jit_arguments, match_data)); |
| 3470 | |
| 3471 | mov_opcode = (sizeof(PCRE2_SIZE) == 4) ? SLJIT_MOV_U32 : SLJIT_MOV; |
| 3472 | |
| 3473 | OP2(SLJIT_SUB, SLJIT_R2, 0, SLJIT_R2, 0, SLJIT_S1, 0); |
| 3474 | #if PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32 |
| 3475 | OP2(SLJIT_ASHR, SLJIT_R2, 0, SLJIT_R2, 0, SLJIT_IMM, UCHAR_SHIFT); |
| 3476 | #endif |
| 3477 | OP1(mov_opcode, SLJIT_MEM1(SLJIT_R1), SLJIT_OFFSETOF(pcre2_match_data, ovector), SLJIT_R2, 0); |
| 3478 | |
| 3479 | OP2(SLJIT_SUB, STR_END, 0, STR_END, 0, SLJIT_S1, 0); |
| 3480 | #if PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32 |
| 3481 | OP2(SLJIT_ASHR, STR_END, 0, STR_END, 0, SLJIT_IMM, UCHAR_SHIFT); |
| 3482 | #endif |
| 3483 | OP1(mov_opcode, SLJIT_MEM1(SLJIT_R1), SLJIT_OFFSETOF(pcre2_match_data, ovector) + sizeof(PCRE2_SIZE), STR_END, 0); |
| 3484 | |
| 3485 | JUMPTO(SLJIT_JUMP, quit); |
| 3486 | } |
| 3487 | |
| 3488 | static SLJIT_INLINE void check_start_used_ptr(compiler_common *common) |
| 3489 | { |
| 3490 | /* May destroy TMP1. */ |
| 3491 | DEFINE_COMPILER; |
| 3492 | struct sljit_jump *jump; |
| 3493 | |
| 3494 | if (common->mode == PCRE2_JIT_PARTIAL_SOFT) |
| 3495 | { |
| 3496 | /* The value of -1 must be kept for start_used_ptr! */ |
| 3497 | OP2(SLJIT_ADD, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, SLJIT_IMM, 1); |
| 3498 | /* Jumps if start_used_ptr < STR_PTR, or start_used_ptr == -1. Although overwriting |
| 3499 | is not necessary if start_used_ptr == STR_PTR, it does not hurt as well. */ |
| 3500 | jump = CMP(SLJIT_LESS_EQUAL, TMP1, 0, STR_PTR, 0); |
| 3501 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0); |
| 3502 | JUMPHERE(jump); |
| 3503 | } |
| 3504 | else if (common->mode == PCRE2_JIT_PARTIAL_HARD) |
| 3505 | { |
| 3506 | jump = CMP(SLJIT_LESS_EQUAL, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0); |
| 3507 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0); |
| 3508 | JUMPHERE(jump); |
| 3509 | } |
| 3510 | } |
| 3511 | |
| 3512 | static SLJIT_INLINE BOOL char_has_othercase(compiler_common *common, PCRE2_SPTR cc) |
| 3513 | { |
| 3514 | /* Detects if the character has an othercase. */ |
| 3515 | unsigned int c; |
| 3516 | |
| 3517 | #ifdef SUPPORT_UNICODE |
| 3518 | if (common->utf || common->ucp) |
| 3519 | { |
| 3520 | if (common->utf) |
| 3521 | { |
| 3522 | GETCHAR(c, cc); |
| 3523 | } |
| 3524 | else |
| 3525 | c = *cc; |
| 3526 | |
| 3527 | if (c > 127) |
| 3528 | return c != UCD_OTHERCASE(c); |
| 3529 | |
| 3530 | return common->fcc[c] != c; |
| 3531 | } |
| 3532 | else |
| 3533 | #endif |
| 3534 | c = *cc; |
| 3535 | return MAX_255(c) ? common->fcc[c] != c : FALSE; |
| 3536 | } |
| 3537 | |
| 3538 | static SLJIT_INLINE unsigned int char_othercase(compiler_common *common, unsigned int c) |
| 3539 | { |
| 3540 | /* Returns with the othercase. */ |
| 3541 | #ifdef SUPPORT_UNICODE |
| 3542 | if ((common->utf || common->ucp) && c > 127) |
| 3543 | return UCD_OTHERCASE(c); |
| 3544 | #endif |
| 3545 | return TABLE_GET(c, common->fcc, c); |
| 3546 | } |
| 3547 | |
| 3548 | static unsigned int char_get_othercase_bit(compiler_common *common, PCRE2_SPTR cc) |
| 3549 | { |
| 3550 | /* Detects if the character and its othercase has only 1 bit difference. */ |
| 3551 | unsigned int c, oc, bit; |
| 3552 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8 |
| 3553 | int n; |
| 3554 | #endif |
| 3555 | |
| 3556 | #ifdef SUPPORT_UNICODE |
| 3557 | if (common->utf || common->ucp) |
| 3558 | { |
| 3559 | if (common->utf) |
| 3560 | { |
| 3561 | GETCHAR(c, cc); |
| 3562 | } |
| 3563 | else |
| 3564 | c = *cc; |
| 3565 | |
| 3566 | if (c <= 127) |
| 3567 | oc = common->fcc[c]; |
| 3568 | else |
| 3569 | oc = UCD_OTHERCASE(c); |
| 3570 | } |
| 3571 | else |
| 3572 | { |
| 3573 | c = *cc; |
| 3574 | oc = TABLE_GET(c, common->fcc, c); |
| 3575 | } |
| 3576 | #else |
| 3577 | c = *cc; |
| 3578 | oc = TABLE_GET(c, common->fcc, c); |
| 3579 | #endif |
| 3580 | |
| 3581 | SLJIT_ASSERT(c != oc); |
| 3582 | |
| 3583 | bit = c ^ oc; |
| 3584 | /* Optimized for English alphabet. */ |
| 3585 | if (c <= 127 && bit == 0x20) |
| 3586 | return (0 << 8) | 0x20; |
| 3587 | |
| 3588 | /* Since c != oc, they must have at least 1 bit difference. */ |
| 3589 | if (!is_powerof2(bit)) |
| 3590 | return 0; |
| 3591 | |
| 3592 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 3593 | |
| 3594 | #ifdef SUPPORT_UNICODE |
| 3595 | if (common->utf && c > 127) |
| 3596 | { |
| 3597 | n = GET_EXTRALEN(*cc); |
| 3598 | while ((bit & 0x3f) == 0) |
| 3599 | { |
| 3600 | n--; |
| 3601 | bit >>= 6; |
| 3602 | } |
| 3603 | return (n << 8) | bit; |
| 3604 | } |
| 3605 | #endif /* SUPPORT_UNICODE */ |
| 3606 | return (0 << 8) | bit; |
| 3607 | |
| 3608 | #elif PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32 |
| 3609 | |
| 3610 | #ifdef SUPPORT_UNICODE |
| 3611 | if (common->utf && c > 65535) |
| 3612 | { |
| 3613 | if (bit >= (1u << 10)) |
| 3614 | bit >>= 10; |
| 3615 | else |
| 3616 | return (bit < 256) ? ((2 << 8) | bit) : ((3 << 8) | (bit >> 8)); |
| 3617 | } |
| 3618 | #endif /* SUPPORT_UNICODE */ |
| 3619 | return (bit < 256) ? ((0u << 8) | bit) : ((1u << 8) | (bit >> 8)); |
| 3620 | |
| 3621 | #endif /* PCRE2_CODE_UNIT_WIDTH == [8|16|32] */ |
| 3622 | } |
| 3623 | |
| 3624 | static void check_partial(compiler_common *common, BOOL force) |
| 3625 | { |
| 3626 | /* Checks whether a partial matching is occurred. Does not modify registers. */ |
| 3627 | DEFINE_COMPILER; |
| 3628 | struct sljit_jump *jump = NULL; |
| 3629 | |
| 3630 | SLJIT_ASSERT(!force || common->mode != PCRE2_JIT_COMPLETE); |
| 3631 | |
| 3632 | if (common->mode == PCRE2_JIT_COMPLETE) |
| 3633 | return; |
| 3634 | |
| 3635 | if (!force && !common->allow_empty_partial) |
| 3636 | jump = CMP(SLJIT_GREATER_EQUAL, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0); |
| 3637 | else if (common->mode == PCRE2_JIT_PARTIAL_SOFT) |
| 3638 | jump = CMP(SLJIT_EQUAL, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, SLJIT_IMM, -1); |
| 3639 | |
| 3640 | if (common->mode == PCRE2_JIT_PARTIAL_SOFT) |
| 3641 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->hit_start, SLJIT_IMM, 0); |
| 3642 | else |
| 3643 | { |
| 3644 | if (common->partialmatchlabel != NULL) |
| 3645 | JUMPTO(SLJIT_JUMP, common->partialmatchlabel); |
| 3646 | else |
| 3647 | add_jump(compiler, &common->partialmatch, JUMP(SLJIT_JUMP)); |
| 3648 | } |
| 3649 | |
| 3650 | if (jump != NULL) |
| 3651 | JUMPHERE(jump); |
| 3652 | } |
| 3653 | |
| 3654 | static void check_str_end(compiler_common *common, jump_list **end_reached) |
| 3655 | { |
| 3656 | /* Does not affect registers. Usually used in a tight spot. */ |
| 3657 | DEFINE_COMPILER; |
| 3658 | struct sljit_jump *jump; |
| 3659 | |
| 3660 | if (common->mode == PCRE2_JIT_COMPLETE) |
| 3661 | { |
| 3662 | add_jump(compiler, end_reached, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); |
| 3663 | return; |
| 3664 | } |
| 3665 | |
| 3666 | jump = CMP(SLJIT_LESS, STR_PTR, 0, STR_END, 0); |
| 3667 | if (common->mode == PCRE2_JIT_PARTIAL_SOFT) |
| 3668 | { |
| 3669 | add_jump(compiler, end_reached, CMP(SLJIT_GREATER_EQUAL, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0)); |
| 3670 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->hit_start, SLJIT_IMM, 0); |
| 3671 | add_jump(compiler, end_reached, JUMP(SLJIT_JUMP)); |
| 3672 | } |
| 3673 | else |
| 3674 | { |
| 3675 | add_jump(compiler, end_reached, CMP(SLJIT_GREATER_EQUAL, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0)); |
| 3676 | if (common->partialmatchlabel != NULL) |
| 3677 | JUMPTO(SLJIT_JUMP, common->partialmatchlabel); |
| 3678 | else |
| 3679 | add_jump(compiler, &common->partialmatch, JUMP(SLJIT_JUMP)); |
| 3680 | } |
| 3681 | JUMPHERE(jump); |
| 3682 | } |
| 3683 | |
| 3684 | static void detect_partial_match(compiler_common *common, jump_list **backtracks) |
| 3685 | { |
| 3686 | DEFINE_COMPILER; |
| 3687 | struct sljit_jump *jump; |
| 3688 | |
| 3689 | if (common->mode == PCRE2_JIT_COMPLETE) |
| 3690 | { |
| 3691 | add_jump(compiler, backtracks, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); |
| 3692 | return; |
| 3693 | } |
| 3694 | |
| 3695 | /* Partial matching mode. */ |
| 3696 | jump = CMP(SLJIT_LESS, STR_PTR, 0, STR_END, 0); |
| 3697 | if (!common->allow_empty_partial) |
| 3698 | add_jump(compiler, backtracks, CMP(SLJIT_GREATER_EQUAL, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0)); |
| 3699 | else if (common->mode == PCRE2_JIT_PARTIAL_SOFT) |
| 3700 | add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, SLJIT_IMM, -1)); |
| 3701 | |
| 3702 | if (common->mode == PCRE2_JIT_PARTIAL_SOFT) |
| 3703 | { |
| 3704 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->hit_start, SLJIT_IMM, 0); |
| 3705 | add_jump(compiler, backtracks, JUMP(SLJIT_JUMP)); |
| 3706 | } |
| 3707 | else |
| 3708 | { |
| 3709 | if (common->partialmatchlabel != NULL) |
| 3710 | JUMPTO(SLJIT_JUMP, common->partialmatchlabel); |
| 3711 | else |
| 3712 | add_jump(compiler, &common->partialmatch, JUMP(SLJIT_JUMP)); |
| 3713 | } |
| 3714 | JUMPHERE(jump); |
| 3715 | } |
| 3716 | |
| 3717 | static void process_partial_match(compiler_common *common) |
| 3718 | { |
| 3719 | DEFINE_COMPILER; |
| 3720 | struct sljit_jump *jump; |
| 3721 | |
| 3722 | /* Partial matching mode. */ |
| 3723 | if (common->mode == PCRE2_JIT_PARTIAL_SOFT) |
| 3724 | { |
| 3725 | jump = CMP(SLJIT_GREATER_EQUAL, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0); |
| 3726 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->hit_start, SLJIT_IMM, 0); |
| 3727 | JUMPHERE(jump); |
| 3728 | } |
| 3729 | else if (common->mode == PCRE2_JIT_PARTIAL_HARD) |
| 3730 | { |
| 3731 | if (common->partialmatchlabel != NULL) |
| 3732 | CMPTO(SLJIT_LESS, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0, common->partialmatchlabel); |
| 3733 | else |
| 3734 | add_jump(compiler, &common->partialmatch, CMP(SLJIT_LESS, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0)); |
| 3735 | } |
| 3736 | } |
| 3737 | |
| 3738 | static void detect_partial_match_to(compiler_common *common, struct sljit_label *label) |
| 3739 | { |
| 3740 | DEFINE_COMPILER; |
| 3741 | |
| 3742 | CMPTO(SLJIT_LESS, STR_PTR, 0, STR_END, 0, label); |
| 3743 | process_partial_match(common); |
| 3744 | } |
| 3745 | |
| 3746 | static void peek_char(compiler_common *common, sljit_u32 max, sljit_s32 dst, sljit_sw dstw, jump_list **backtracks) |
| 3747 | { |
| 3748 | /* Reads the character into TMP1, keeps STR_PTR. |
| 3749 | Does not check STR_END. TMP2, dst, RETURN_ADDR Destroyed. */ |
| 3750 | DEFINE_COMPILER; |
| 3751 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 3752 | struct sljit_jump *jump; |
| 3753 | #endif /* SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 */ |
| 3754 | |
| 3755 | SLJIT_UNUSED_ARG(max); |
| 3756 | SLJIT_UNUSED_ARG(dst); |
| 3757 | SLJIT_UNUSED_ARG(dstw); |
| 3758 | SLJIT_UNUSED_ARG(backtracks); |
| 3759 | |
| 3760 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); |
| 3761 | |
| 3762 | #ifdef SUPPORT_UNICODE |
| 3763 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 3764 | if (common->utf) |
| 3765 | { |
| 3766 | if (max < 128) return; |
| 3767 | |
| 3768 | jump = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0x80); |
| 3769 | OP1(SLJIT_MOV, dst, dstw, STR_PTR, 0); |
| 3770 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 3771 | add_jump(compiler, common->invalid_utf ? &common->utfreadchar_invalid : &common->utfreadchar, JUMP(SLJIT_FAST_CALL)); |
| 3772 | OP1(SLJIT_MOV, STR_PTR, 0, dst, dstw); |
| 3773 | if (backtracks && common->invalid_utf) |
| 3774 | add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, INVALID_UTF_CHAR)); |
| 3775 | JUMPHERE(jump); |
| 3776 | } |
| 3777 | #elif PCRE2_CODE_UNIT_WIDTH == 16 |
| 3778 | if (common->utf) |
| 3779 | { |
| 3780 | if (max < 0xd800) return; |
| 3781 | |
| 3782 | OP2(SLJIT_SUB, TMP2, 0, TMP1, 0, SLJIT_IMM, 0xd800); |
| 3783 | |
| 3784 | if (common->invalid_utf) |
| 3785 | { |
| 3786 | jump = CMP(SLJIT_GREATER_EQUAL, TMP2, 0, SLJIT_IMM, 0xe000 - 0xd800); |
| 3787 | OP1(SLJIT_MOV, dst, dstw, STR_PTR, 0); |
| 3788 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 3789 | add_jump(compiler, &common->utfreadchar_invalid, JUMP(SLJIT_FAST_CALL)); |
| 3790 | OP1(SLJIT_MOV, STR_PTR, 0, dst, dstw); |
| 3791 | if (backtracks && common->invalid_utf) |
| 3792 | add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, INVALID_UTF_CHAR)); |
| 3793 | } |
| 3794 | else |
| 3795 | { |
| 3796 | /* TMP2 contains the high surrogate. */ |
| 3797 | jump = CMP(SLJIT_GREATER_EQUAL, TMP2, 0, SLJIT_IMM, 0xdc00 - 0xd800); |
| 3798 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1)); |
| 3799 | OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 10); |
| 3800 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x10000 - 0xdc00); |
| 3801 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, TMP2, 0); |
| 3802 | } |
| 3803 | |
| 3804 | JUMPHERE(jump); |
| 3805 | } |
| 3806 | #elif PCRE2_CODE_UNIT_WIDTH == 32 |
| 3807 | if (common->invalid_utf) |
| 3808 | { |
| 3809 | if (max < 0xd800) return; |
| 3810 | |
| 3811 | if (backtracks != NULL) |
| 3812 | { |
| 3813 | OP2(SLJIT_SUB, TMP2, 0, TMP1, 0, SLJIT_IMM, 0xd800); |
| 3814 | add_jump(compiler, backtracks, CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 0x110000)); |
| 3815 | add_jump(compiler, backtracks, CMP(SLJIT_LESS, TMP2, 0, SLJIT_IMM, 0xe000 - 0xd800)); |
| 3816 | } |
| 3817 | else |
| 3818 | { |
| 3819 | OP2(SLJIT_SUB, TMP2, 0, TMP1, 0, SLJIT_IMM, 0xd800); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 3820 | OP2U(SLJIT_SUB | SLJIT_SET_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 0x110000); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 3821 | CMOV(SLJIT_GREATER_EQUAL, TMP1, SLJIT_IMM, INVALID_UTF_CHAR); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 3822 | OP2U(SLJIT_SUB | SLJIT_SET_LESS, TMP2, 0, SLJIT_IMM, 0xe000 - 0xd800); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 3823 | CMOV(SLJIT_LESS, TMP1, SLJIT_IMM, INVALID_UTF_CHAR); |
| 3824 | } |
| 3825 | } |
| 3826 | #endif /* PCRE2_CODE_UNIT_WIDTH == [8|16|32] */ |
| 3827 | #endif /* SUPPORT_UNICODE */ |
| 3828 | } |
| 3829 | |
| 3830 | static void peek_char_back(compiler_common *common, sljit_u32 max, jump_list **backtracks) |
| 3831 | { |
| 3832 | /* Reads one character back without moving STR_PTR. TMP2 must |
| 3833 | contain the start of the subject buffer. Affects TMP1, TMP2, and RETURN_ADDR. */ |
| 3834 | DEFINE_COMPILER; |
| 3835 | |
| 3836 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 3837 | struct sljit_jump *jump; |
| 3838 | #endif /* SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 */ |
| 3839 | |
| 3840 | SLJIT_UNUSED_ARG(max); |
| 3841 | SLJIT_UNUSED_ARG(backtracks); |
| 3842 | |
| 3843 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-1)); |
| 3844 | |
| 3845 | #ifdef SUPPORT_UNICODE |
| 3846 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 3847 | if (common->utf) |
| 3848 | { |
| 3849 | if (max < 128) return; |
| 3850 | |
| 3851 | jump = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0x80); |
| 3852 | if (common->invalid_utf) |
| 3853 | { |
| 3854 | add_jump(compiler, &common->utfpeakcharback_invalid, JUMP(SLJIT_FAST_CALL)); |
| 3855 | if (backtracks != NULL) |
| 3856 | add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, INVALID_UTF_CHAR)); |
| 3857 | } |
| 3858 | else |
| 3859 | add_jump(compiler, &common->utfpeakcharback, JUMP(SLJIT_FAST_CALL)); |
| 3860 | JUMPHERE(jump); |
| 3861 | } |
| 3862 | #elif PCRE2_CODE_UNIT_WIDTH == 16 |
| 3863 | if (common->utf) |
| 3864 | { |
| 3865 | if (max < 0xd800) return; |
| 3866 | |
| 3867 | if (common->invalid_utf) |
| 3868 | { |
| 3869 | jump = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0xd800); |
| 3870 | add_jump(compiler, &common->utfpeakcharback_invalid, JUMP(SLJIT_FAST_CALL)); |
| 3871 | if (backtracks != NULL) |
| 3872 | add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, INVALID_UTF_CHAR)); |
| 3873 | } |
| 3874 | else |
| 3875 | { |
| 3876 | OP2(SLJIT_SUB, TMP2, 0, TMP1, 0, SLJIT_IMM, 0xdc00); |
| 3877 | jump = CMP(SLJIT_GREATER_EQUAL, TMP2, 0, SLJIT_IMM, 0xe000 - 0xdc00); |
| 3878 | /* TMP2 contains the low surrogate. */ |
| 3879 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-2)); |
| 3880 | OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x10000); |
| 3881 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xd800); |
| 3882 | OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 10); |
| 3883 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, TMP2, 0); |
| 3884 | } |
| 3885 | JUMPHERE(jump); |
| 3886 | } |
| 3887 | #elif PCRE2_CODE_UNIT_WIDTH == 32 |
| 3888 | if (common->invalid_utf) |
| 3889 | { |
| 3890 | OP2(SLJIT_SUB, TMP2, 0, TMP1, 0, SLJIT_IMM, 0xd800); |
| 3891 | add_jump(compiler, backtracks, CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 0x110000)); |
| 3892 | add_jump(compiler, backtracks, CMP(SLJIT_LESS, TMP2, 0, SLJIT_IMM, 0xe000 - 0xd800)); |
| 3893 | } |
| 3894 | #endif /* PCRE2_CODE_UNIT_WIDTH == [8|16|32] */ |
| 3895 | #endif /* SUPPORT_UNICODE */ |
| 3896 | } |
| 3897 | |
| 3898 | #define READ_CHAR_UPDATE_STR_PTR 0x1 |
| 3899 | #define READ_CHAR_UTF8_NEWLINE 0x2 |
| 3900 | #define READ_CHAR_NEWLINE (READ_CHAR_UPDATE_STR_PTR | READ_CHAR_UTF8_NEWLINE) |
| 3901 | #define READ_CHAR_VALID_UTF 0x4 |
| 3902 | |
| 3903 | static void read_char(compiler_common *common, sljit_u32 min, sljit_u32 max, |
| 3904 | jump_list **backtracks, sljit_u32 options) |
| 3905 | { |
| 3906 | /* Reads the precise value of a character into TMP1, if the character is |
| 3907 | between min and max (c >= min && c <= max). Otherwise it returns with a value |
| 3908 | outside the range. Does not check STR_END. */ |
| 3909 | DEFINE_COMPILER; |
| 3910 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 3911 | struct sljit_jump *jump; |
| 3912 | #endif |
| 3913 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8 |
| 3914 | struct sljit_jump *jump2; |
| 3915 | #endif |
| 3916 | |
| 3917 | SLJIT_UNUSED_ARG(min); |
| 3918 | SLJIT_UNUSED_ARG(max); |
| 3919 | SLJIT_UNUSED_ARG(backtracks); |
| 3920 | SLJIT_UNUSED_ARG(options); |
| 3921 | SLJIT_ASSERT(min <= max); |
| 3922 | |
| 3923 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); |
| 3924 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 3925 | |
| 3926 | #ifdef SUPPORT_UNICODE |
| 3927 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 3928 | if (common->utf) |
| 3929 | { |
| 3930 | if (max < 128 && !(options & READ_CHAR_UPDATE_STR_PTR)) return; |
| 3931 | |
| 3932 | if (common->invalid_utf && !(options & READ_CHAR_VALID_UTF)) |
| 3933 | { |
| 3934 | jump = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0x80); |
| 3935 | |
| 3936 | if (options & READ_CHAR_UTF8_NEWLINE) |
| 3937 | add_jump(compiler, &common->utfreadnewline_invalid, JUMP(SLJIT_FAST_CALL)); |
| 3938 | else |
| 3939 | add_jump(compiler, &common->utfreadchar_invalid, JUMP(SLJIT_FAST_CALL)); |
| 3940 | |
| 3941 | if (backtracks != NULL) |
| 3942 | add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, INVALID_UTF_CHAR)); |
| 3943 | JUMPHERE(jump); |
| 3944 | return; |
| 3945 | } |
| 3946 | |
| 3947 | jump = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0xc0); |
| 3948 | if (min >= 0x10000) |
| 3949 | { |
| 3950 | OP2(SLJIT_SUB, TMP2, 0, TMP1, 0, SLJIT_IMM, 0xf0); |
| 3951 | if (options & READ_CHAR_UPDATE_STR_PTR) |
| 3952 | OP1(SLJIT_MOV_U8, RETURN_ADDR, 0, SLJIT_MEM1(TMP1), (sljit_sw)PRIV(utf8_table4) - 0xc0); |
| 3953 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); |
| 3954 | jump2 = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 0x7); |
| 3955 | OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 6); |
| 3956 | OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3f); |
| 3957 | OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0); |
| 3958 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1)); |
| 3959 | OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6); |
| 3960 | OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f); |
| 3961 | OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0); |
| 3962 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(2)); |
| 3963 | if (!(options & READ_CHAR_UPDATE_STR_PTR)) |
| 3964 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(3)); |
| 3965 | OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6); |
| 3966 | OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f); |
| 3967 | OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0); |
| 3968 | JUMPHERE(jump2); |
| 3969 | if (options & READ_CHAR_UPDATE_STR_PTR) |
| 3970 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, RETURN_ADDR, 0); |
| 3971 | } |
| 3972 | else if (min >= 0x800 && max <= 0xffff) |
| 3973 | { |
| 3974 | OP2(SLJIT_SUB, TMP2, 0, TMP1, 0, SLJIT_IMM, 0xe0); |
| 3975 | if (options & READ_CHAR_UPDATE_STR_PTR) |
| 3976 | OP1(SLJIT_MOV_U8, RETURN_ADDR, 0, SLJIT_MEM1(TMP1), (sljit_sw)PRIV(utf8_table4) - 0xc0); |
| 3977 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); |
| 3978 | jump2 = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 0xf); |
| 3979 | OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 6); |
| 3980 | OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3f); |
| 3981 | OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0); |
| 3982 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1)); |
| 3983 | if (!(options & READ_CHAR_UPDATE_STR_PTR)) |
| 3984 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2)); |
| 3985 | OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6); |
| 3986 | OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f); |
| 3987 | OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0); |
| 3988 | JUMPHERE(jump2); |
| 3989 | if (options & READ_CHAR_UPDATE_STR_PTR) |
| 3990 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, RETURN_ADDR, 0); |
| 3991 | } |
| 3992 | else if (max >= 0x800) |
| 3993 | { |
| 3994 | add_jump(compiler, &common->utfreadchar, JUMP(SLJIT_FAST_CALL)); |
| 3995 | } |
| 3996 | else if (max < 128) |
| 3997 | { |
| 3998 | OP1(SLJIT_MOV_U8, TMP2, 0, SLJIT_MEM1(TMP1), (sljit_sw)PRIV(utf8_table4) - 0xc0); |
| 3999 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0); |
| 4000 | } |
| 4001 | else |
| 4002 | { |
| 4003 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); |
| 4004 | if (!(options & READ_CHAR_UPDATE_STR_PTR)) |
| 4005 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 4006 | else |
| 4007 | OP1(SLJIT_MOV_U8, RETURN_ADDR, 0, SLJIT_MEM1(TMP1), (sljit_sw)PRIV(utf8_table4) - 0xc0); |
| 4008 | OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3f); |
| 4009 | OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6); |
| 4010 | OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f); |
| 4011 | OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0); |
| 4012 | if (options & READ_CHAR_UPDATE_STR_PTR) |
| 4013 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, RETURN_ADDR, 0); |
| 4014 | } |
| 4015 | JUMPHERE(jump); |
| 4016 | } |
| 4017 | #elif PCRE2_CODE_UNIT_WIDTH == 16 |
| 4018 | if (common->utf) |
| 4019 | { |
| 4020 | if (max < 0xd800 && !(options & READ_CHAR_UPDATE_STR_PTR)) return; |
| 4021 | |
| 4022 | if (common->invalid_utf && !(options & READ_CHAR_VALID_UTF)) |
| 4023 | { |
| 4024 | OP2(SLJIT_SUB, TMP2, 0, TMP1, 0, SLJIT_IMM, 0xd800); |
| 4025 | jump = CMP(SLJIT_GREATER_EQUAL, TMP2, 0, SLJIT_IMM, 0xe000 - 0xd800); |
| 4026 | |
| 4027 | if (options & READ_CHAR_UTF8_NEWLINE) |
| 4028 | add_jump(compiler, &common->utfreadnewline_invalid, JUMP(SLJIT_FAST_CALL)); |
| 4029 | else |
| 4030 | add_jump(compiler, &common->utfreadchar_invalid, JUMP(SLJIT_FAST_CALL)); |
| 4031 | |
| 4032 | if (backtracks != NULL) |
| 4033 | add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, INVALID_UTF_CHAR)); |
| 4034 | JUMPHERE(jump); |
| 4035 | return; |
| 4036 | } |
| 4037 | |
| 4038 | if (max >= 0x10000) |
| 4039 | { |
| 4040 | OP2(SLJIT_SUB, TMP2, 0, TMP1, 0, SLJIT_IMM, 0xd800); |
| 4041 | jump = CMP(SLJIT_GREATER_EQUAL, TMP2, 0, SLJIT_IMM, 0xdc00 - 0xd800); |
| 4042 | /* TMP2 contains the high surrogate. */ |
| 4043 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); |
| 4044 | OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 10); |
| 4045 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 4046 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x10000 - 0xdc00); |
| 4047 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, TMP2, 0); |
| 4048 | JUMPHERE(jump); |
| 4049 | return; |
| 4050 | } |
| 4051 | |
| 4052 | /* Skip low surrogate if necessary. */ |
| 4053 | OP2(SLJIT_SUB, TMP2, 0, TMP1, 0, SLJIT_IMM, 0xd800); |
| 4054 | |
| 4055 | if (sljit_has_cpu_feature(SLJIT_HAS_CMOV) && !HAS_VIRTUAL_REGISTERS) |
| 4056 | { |
| 4057 | if (options & READ_CHAR_UPDATE_STR_PTR) |
| 4058 | OP2(SLJIT_ADD, RETURN_ADDR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 4059 | OP2U(SLJIT_SUB | SLJIT_SET_LESS, TMP2, 0, SLJIT_IMM, 0x400); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 4060 | if (options & READ_CHAR_UPDATE_STR_PTR) |
| 4061 | CMOV(SLJIT_LESS, STR_PTR, RETURN_ADDR, 0); |
| 4062 | if (max >= 0xd800) |
| 4063 | CMOV(SLJIT_LESS, TMP1, SLJIT_IMM, 0x10000); |
| 4064 | } |
| 4065 | else |
| 4066 | { |
| 4067 | jump = CMP(SLJIT_GREATER_EQUAL, TMP2, 0, SLJIT_IMM, 0x400); |
| 4068 | if (options & READ_CHAR_UPDATE_STR_PTR) |
| 4069 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 4070 | if (max >= 0xd800) |
| 4071 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0x10000); |
| 4072 | JUMPHERE(jump); |
| 4073 | } |
| 4074 | } |
| 4075 | #elif PCRE2_CODE_UNIT_WIDTH == 32 |
| 4076 | if (common->invalid_utf) |
| 4077 | { |
| 4078 | if (backtracks != NULL) |
| 4079 | { |
| 4080 | OP2(SLJIT_SUB, TMP2, 0, TMP1, 0, SLJIT_IMM, 0xd800); |
| 4081 | add_jump(compiler, backtracks, CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 0x110000)); |
| 4082 | add_jump(compiler, backtracks, CMP(SLJIT_LESS, TMP2, 0, SLJIT_IMM, 0xe000 - 0xd800)); |
| 4083 | } |
| 4084 | else |
| 4085 | { |
| 4086 | OP2(SLJIT_SUB, TMP2, 0, TMP1, 0, SLJIT_IMM, 0xd800); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 4087 | OP2U(SLJIT_SUB | SLJIT_SET_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 0x110000); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 4088 | CMOV(SLJIT_GREATER_EQUAL, TMP1, SLJIT_IMM, INVALID_UTF_CHAR); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 4089 | OP2U(SLJIT_SUB | SLJIT_SET_LESS, TMP2, 0, SLJIT_IMM, 0xe000 - 0xd800); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 4090 | CMOV(SLJIT_LESS, TMP1, SLJIT_IMM, INVALID_UTF_CHAR); |
| 4091 | } |
| 4092 | } |
| 4093 | #endif /* PCRE2_CODE_UNIT_WIDTH == [8|16|32] */ |
| 4094 | #endif /* SUPPORT_UNICODE */ |
| 4095 | } |
| 4096 | |
| 4097 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8 |
| 4098 | |
| 4099 | static BOOL is_char7_bitset(const sljit_u8 *bitset, BOOL nclass) |
| 4100 | { |
| 4101 | /* Tells whether the character codes below 128 are enough |
| 4102 | to determine a match. */ |
| 4103 | const sljit_u8 value = nclass ? 0xff : 0; |
| 4104 | const sljit_u8 *end = bitset + 32; |
| 4105 | |
| 4106 | bitset += 16; |
| 4107 | do |
| 4108 | { |
| 4109 | if (*bitset++ != value) |
| 4110 | return FALSE; |
| 4111 | } |
| 4112 | while (bitset < end); |
| 4113 | return TRUE; |
| 4114 | } |
| 4115 | |
| 4116 | static void read_char7_type(compiler_common *common, jump_list **backtracks, BOOL negated) |
| 4117 | { |
| 4118 | /* Reads the precise character type of a character into TMP1, if the character |
| 4119 | is less than 128. Otherwise it returns with zero. Does not check STR_END. The |
| 4120 | full_read argument tells whether characters above max are accepted or not. */ |
| 4121 | DEFINE_COMPILER; |
| 4122 | struct sljit_jump *jump; |
| 4123 | |
| 4124 | SLJIT_ASSERT(common->utf); |
| 4125 | |
| 4126 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), 0); |
| 4127 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 4128 | |
| 4129 | /* All values > 127 are zero in ctypes. */ |
| 4130 | OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes); |
| 4131 | |
| 4132 | if (negated) |
| 4133 | { |
| 4134 | jump = CMP(SLJIT_LESS, TMP2, 0, SLJIT_IMM, 0x80); |
| 4135 | |
| 4136 | if (common->invalid_utf) |
| 4137 | { |
| 4138 | add_jump(compiler, &common->utfreadchar_invalid, JUMP(SLJIT_FAST_CALL)); |
| 4139 | add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, INVALID_UTF_CHAR)); |
| 4140 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0); |
| 4141 | } |
| 4142 | else |
| 4143 | { |
| 4144 | OP1(SLJIT_MOV_U8, TMP2, 0, SLJIT_MEM1(TMP2), (sljit_sw)PRIV(utf8_table4) - 0xc0); |
| 4145 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0); |
| 4146 | } |
| 4147 | JUMPHERE(jump); |
| 4148 | } |
| 4149 | } |
| 4150 | |
| 4151 | #endif /* SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8 */ |
| 4152 | |
| 4153 | static void read_char8_type(compiler_common *common, jump_list **backtracks, BOOL negated) |
| 4154 | { |
| 4155 | /* Reads the character type into TMP1, updates STR_PTR. Does not check STR_END. */ |
| 4156 | DEFINE_COMPILER; |
| 4157 | #if defined SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH != 8 |
| 4158 | struct sljit_jump *jump; |
| 4159 | #endif |
| 4160 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8 |
| 4161 | struct sljit_jump *jump2; |
| 4162 | #endif |
| 4163 | |
| 4164 | SLJIT_UNUSED_ARG(backtracks); |
| 4165 | SLJIT_UNUSED_ARG(negated); |
| 4166 | |
| 4167 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), 0); |
| 4168 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 4169 | |
| 4170 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8 |
| 4171 | if (common->utf) |
| 4172 | { |
| 4173 | /* The result of this read may be unused, but saves an "else" part. */ |
| 4174 | OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes); |
| 4175 | jump = CMP(SLJIT_LESS, TMP2, 0, SLJIT_IMM, 0x80); |
| 4176 | |
| 4177 | if (!negated) |
| 4178 | { |
| 4179 | if (common->invalid_utf) |
| 4180 | add_jump(compiler, backtracks, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); |
| 4181 | |
| 4182 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); |
| 4183 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 4184 | OP2(SLJIT_SUB, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xc2); |
| 4185 | if (common->invalid_utf) |
| 4186 | add_jump(compiler, backtracks, CMP(SLJIT_GREATER_EQUAL, TMP2, 0, SLJIT_IMM, 0xe0 - 0xc2)); |
| 4187 | |
| 4188 | OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 6); |
| 4189 | OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, TMP1, 0); |
| 4190 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x80); |
| 4191 | if (common->invalid_utf) |
| 4192 | add_jump(compiler, backtracks, CMP(SLJIT_GREATER_EQUAL, TMP2, 0, SLJIT_IMM, 0x40)); |
| 4193 | |
| 4194 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0); |
| 4195 | jump2 = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 255); |
| 4196 | OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes); |
| 4197 | JUMPHERE(jump2); |
| 4198 | } |
| 4199 | else if (common->invalid_utf) |
| 4200 | { |
| 4201 | add_jump(compiler, &common->utfreadchar_invalid, JUMP(SLJIT_FAST_CALL)); |
| 4202 | OP1(SLJIT_MOV, TMP2, 0, TMP1, 0); |
| 4203 | add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, INVALID_UTF_CHAR)); |
| 4204 | |
| 4205 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0); |
| 4206 | jump2 = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 255); |
| 4207 | OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes); |
| 4208 | JUMPHERE(jump2); |
| 4209 | } |
| 4210 | else |
| 4211 | add_jump(compiler, &common->utfreadtype8, JUMP(SLJIT_FAST_CALL)); |
| 4212 | |
| 4213 | JUMPHERE(jump); |
| 4214 | return; |
| 4215 | } |
| 4216 | #endif /* SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8 */ |
| 4217 | |
| 4218 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 32 |
| 4219 | if (common->invalid_utf && negated) |
| 4220 | add_jump(compiler, backtracks, CMP(SLJIT_GREATER_EQUAL, TMP2, 0, SLJIT_IMM, 0x110000)); |
| 4221 | #endif /* SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 32 */ |
| 4222 | |
| 4223 | #if PCRE2_CODE_UNIT_WIDTH != 8 |
| 4224 | /* The ctypes array contains only 256 values. */ |
| 4225 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0); |
| 4226 | jump = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 255); |
| 4227 | #endif /* PCRE2_CODE_UNIT_WIDTH != 8 */ |
| 4228 | OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes); |
| 4229 | #if PCRE2_CODE_UNIT_WIDTH != 8 |
| 4230 | JUMPHERE(jump); |
| 4231 | #endif /* PCRE2_CODE_UNIT_WIDTH != 8 */ |
| 4232 | |
| 4233 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 16 |
| 4234 | if (common->utf && negated) |
| 4235 | { |
| 4236 | /* Skip low surrogate if necessary. */ |
| 4237 | if (!common->invalid_utf) |
| 4238 | { |
| 4239 | OP2(SLJIT_SUB, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xd800); |
| 4240 | |
| 4241 | if (sljit_has_cpu_feature(SLJIT_HAS_CMOV) && !HAS_VIRTUAL_REGISTERS) |
| 4242 | { |
| 4243 | OP2(SLJIT_ADD, RETURN_ADDR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 4244 | OP2U(SLJIT_SUB | SLJIT_SET_LESS, TMP2, 0, SLJIT_IMM, 0x400); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 4245 | CMOV(SLJIT_LESS, STR_PTR, RETURN_ADDR, 0); |
| 4246 | } |
| 4247 | else |
| 4248 | { |
| 4249 | jump = CMP(SLJIT_GREATER_EQUAL, TMP2, 0, SLJIT_IMM, 0x400); |
| 4250 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 4251 | JUMPHERE(jump); |
| 4252 | } |
| 4253 | return; |
| 4254 | } |
| 4255 | |
| 4256 | OP2(SLJIT_SUB, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xd800); |
| 4257 | jump = CMP(SLJIT_GREATER_EQUAL, TMP2, 0, SLJIT_IMM, 0xe000 - 0xd800); |
| 4258 | add_jump(compiler, backtracks, CMP(SLJIT_GREATER_EQUAL, TMP2, 0, SLJIT_IMM, 0x400)); |
| 4259 | add_jump(compiler, backtracks, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); |
| 4260 | |
| 4261 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); |
| 4262 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 4263 | OP2(SLJIT_SUB, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xdc00); |
| 4264 | add_jump(compiler, backtracks, CMP(SLJIT_GREATER_EQUAL, TMP2, 0, SLJIT_IMM, 0x400)); |
| 4265 | |
| 4266 | JUMPHERE(jump); |
| 4267 | return; |
| 4268 | } |
| 4269 | #endif /* SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 16 */ |
| 4270 | } |
| 4271 | |
| 4272 | static void move_back(compiler_common *common, jump_list **backtracks, BOOL must_be_valid) |
| 4273 | { |
| 4274 | /* Goes one character back. Affects STR_PTR and TMP1. If must_be_valid is TRUE, |
| 4275 | TMP2 is not used. Otherwise TMP2 must contain the start of the subject buffer, |
| 4276 | and it is destroyed. Does not modify STR_PTR for invalid character sequences. */ |
| 4277 | DEFINE_COMPILER; |
| 4278 | |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 4279 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 4280 | struct sljit_jump *jump; |
| 4281 | #endif |
| 4282 | |
| 4283 | #ifdef SUPPORT_UNICODE |
| 4284 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 4285 | struct sljit_label *label; |
| 4286 | |
| 4287 | if (common->utf) |
| 4288 | { |
| 4289 | if (!must_be_valid && common->invalid_utf) |
| 4290 | { |
| 4291 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), -IN_UCHARS(1)); |
| 4292 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 4293 | jump = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0x80); |
| 4294 | add_jump(compiler, &common->utfmoveback_invalid, JUMP(SLJIT_FAST_CALL)); |
| 4295 | if (backtracks != NULL) |
| 4296 | add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, 0)); |
| 4297 | JUMPHERE(jump); |
| 4298 | return; |
| 4299 | } |
| 4300 | |
| 4301 | label = LABEL(); |
| 4302 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), -IN_UCHARS(1)); |
| 4303 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 4304 | OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xc0); |
| 4305 | CMPTO(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, 0x80, label); |
| 4306 | return; |
| 4307 | } |
| 4308 | #elif PCRE2_CODE_UNIT_WIDTH == 16 |
| 4309 | if (common->utf) |
| 4310 | { |
| 4311 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), -IN_UCHARS(1)); |
| 4312 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 4313 | |
| 4314 | if (!must_be_valid && common->invalid_utf) |
| 4315 | { |
| 4316 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xd800); |
| 4317 | jump = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 0xe000 - 0xd800); |
| 4318 | add_jump(compiler, &common->utfmoveback_invalid, JUMP(SLJIT_FAST_CALL)); |
| 4319 | if (backtracks != NULL) |
| 4320 | add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, 0)); |
| 4321 | JUMPHERE(jump); |
| 4322 | return; |
| 4323 | } |
| 4324 | |
| 4325 | /* Skip low surrogate if necessary. */ |
| 4326 | OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xfc00); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 4327 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, 0xdc00); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 4328 | OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_EQUAL); |
| 4329 | OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, UCHAR_SHIFT); |
| 4330 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP1, 0); |
| 4331 | return; |
| 4332 | } |
| 4333 | #elif PCRE2_CODE_UNIT_WIDTH == 32 |
| 4334 | if (common->invalid_utf && !must_be_valid) |
| 4335 | { |
| 4336 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), -IN_UCHARS(1)); |
| 4337 | if (backtracks != NULL) |
| 4338 | { |
| 4339 | add_jump(compiler, backtracks, CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 0x110000)); |
| 4340 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 4341 | return; |
| 4342 | } |
| 4343 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 4344 | OP2U(SLJIT_SUB | SLJIT_SET_LESS, TMP1, 0, SLJIT_IMM, 0x110000); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 4345 | OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_LESS); |
| 4346 | OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, UCHAR_SHIFT); |
| 4347 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP1, 0); |
| 4348 | return; |
| 4349 | } |
| 4350 | #endif /* PCRE2_CODE_UNIT_WIDTH == [8|16|32] */ |
| 4351 | #endif /* SUPPORT_UNICODE */ |
Elliott Hughes | 16619d6 | 2021-10-29 12:10:38 -0700 | [diff] [blame] | 4352 | |
| 4353 | SLJIT_UNUSED_ARG(backtracks); |
| 4354 | SLJIT_UNUSED_ARG(must_be_valid); |
| 4355 | |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 4356 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 4357 | } |
| 4358 | |
| 4359 | static void check_newlinechar(compiler_common *common, int nltype, jump_list **backtracks, BOOL jumpifmatch) |
| 4360 | { |
| 4361 | /* Character comes in TMP1. Checks if it is a newline. TMP2 may be destroyed. */ |
| 4362 | DEFINE_COMPILER; |
| 4363 | struct sljit_jump *jump; |
| 4364 | |
| 4365 | if (nltype == NLTYPE_ANY) |
| 4366 | { |
| 4367 | add_jump(compiler, &common->anynewline, JUMP(SLJIT_FAST_CALL)); |
| 4368 | sljit_set_current_flags(compiler, SLJIT_SET_Z); |
| 4369 | add_jump(compiler, backtracks, JUMP(jumpifmatch ? SLJIT_NOT_ZERO : SLJIT_ZERO)); |
| 4370 | } |
| 4371 | else if (nltype == NLTYPE_ANYCRLF) |
| 4372 | { |
| 4373 | if (jumpifmatch) |
| 4374 | { |
| 4375 | add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_CR)); |
| 4376 | add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_NL)); |
| 4377 | } |
| 4378 | else |
| 4379 | { |
| 4380 | jump = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_CR); |
| 4381 | add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_NL)); |
| 4382 | JUMPHERE(jump); |
| 4383 | } |
| 4384 | } |
| 4385 | else |
| 4386 | { |
| 4387 | SLJIT_ASSERT(nltype == NLTYPE_FIXED && common->newline < 256); |
| 4388 | add_jump(compiler, backtracks, CMP(jumpifmatch ? SLJIT_EQUAL : SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, common->newline)); |
| 4389 | } |
| 4390 | } |
| 4391 | |
| 4392 | #ifdef SUPPORT_UNICODE |
| 4393 | |
| 4394 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 4395 | static void do_utfreadchar(compiler_common *common) |
| 4396 | { |
| 4397 | /* Fast decoding a UTF-8 character. TMP1 contains the first byte |
| 4398 | of the character (>= 0xc0). Return char value in TMP1. */ |
| 4399 | DEFINE_COMPILER; |
| 4400 | struct sljit_jump *jump; |
| 4401 | |
| 4402 | sljit_emit_fast_enter(compiler, RETURN_ADDR, 0); |
| 4403 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); |
| 4404 | OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6); |
| 4405 | OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f); |
| 4406 | OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0); |
| 4407 | |
| 4408 | /* Searching for the first zero. */ |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 4409 | OP2U(SLJIT_AND | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, 0x800); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 4410 | jump = JUMP(SLJIT_NOT_ZERO); |
| 4411 | /* Two byte sequence. */ |
| 4412 | OP2(SLJIT_XOR, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3000); |
| 4413 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 4414 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 4415 | |
| 4416 | JUMPHERE(jump); |
| 4417 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1)); |
| 4418 | OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6); |
| 4419 | OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f); |
| 4420 | OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0); |
| 4421 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 4422 | OP2U(SLJIT_AND | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, 0x10000); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 4423 | jump = JUMP(SLJIT_NOT_ZERO); |
| 4424 | /* Three byte sequence. */ |
| 4425 | OP2(SLJIT_XOR, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xe0000); |
| 4426 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2)); |
| 4427 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 4428 | |
| 4429 | /* Four byte sequence. */ |
| 4430 | JUMPHERE(jump); |
| 4431 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(2)); |
| 4432 | OP2(SLJIT_XOR, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xf0000); |
| 4433 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(3)); |
| 4434 | OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6); |
| 4435 | OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x3f); |
| 4436 | OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0); |
| 4437 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 4438 | } |
| 4439 | |
| 4440 | static void do_utfreadtype8(compiler_common *common) |
| 4441 | { |
| 4442 | /* Fast decoding a UTF-8 character type. TMP2 contains the first byte |
| 4443 | of the character (>= 0xc0). Return value in TMP1. */ |
| 4444 | DEFINE_COMPILER; |
| 4445 | struct sljit_jump *jump; |
| 4446 | struct sljit_jump *compare; |
| 4447 | |
| 4448 | sljit_emit_fast_enter(compiler, RETURN_ADDR, 0); |
| 4449 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 4450 | OP2U(SLJIT_AND | SLJIT_SET_Z, TMP2, 0, SLJIT_IMM, 0x20); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 4451 | jump = JUMP(SLJIT_NOT_ZERO); |
| 4452 | /* Two byte sequence. */ |
| 4453 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); |
| 4454 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 4455 | OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x1f); |
| 4456 | /* The upper 5 bits are known at this point. */ |
| 4457 | compare = CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, 0x3); |
| 4458 | OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 6); |
| 4459 | OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x3f); |
| 4460 | OP2(SLJIT_OR, TMP2, 0, TMP2, 0, TMP1, 0); |
| 4461 | OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP2), common->ctypes); |
| 4462 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 4463 | |
| 4464 | JUMPHERE(compare); |
| 4465 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0); |
| 4466 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 4467 | |
| 4468 | /* We only have types for characters less than 256. */ |
| 4469 | JUMPHERE(jump); |
| 4470 | OP1(SLJIT_MOV_U8, TMP2, 0, SLJIT_MEM1(TMP2), (sljit_sw)PRIV(utf8_table4) - 0xc0); |
| 4471 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0); |
| 4472 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0); |
| 4473 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 4474 | } |
| 4475 | |
| 4476 | static void do_utfreadchar_invalid(compiler_common *common) |
| 4477 | { |
| 4478 | /* Slow decoding a UTF-8 character. TMP1 contains the first byte |
| 4479 | of the character (>= 0xc0). Return char value in TMP1. STR_PTR is |
| 4480 | undefined for invalid characters. */ |
| 4481 | DEFINE_COMPILER; |
| 4482 | sljit_s32 i; |
| 4483 | sljit_s32 has_cmov = sljit_has_cpu_feature(SLJIT_HAS_CMOV); |
| 4484 | struct sljit_jump *jump; |
| 4485 | struct sljit_jump *buffer_end_close; |
| 4486 | struct sljit_label *three_byte_entry; |
| 4487 | struct sljit_label *exit_invalid_label; |
| 4488 | struct sljit_jump *exit_invalid[11]; |
| 4489 | |
| 4490 | sljit_emit_fast_enter(compiler, RETURN_ADDR, 0); |
| 4491 | |
| 4492 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xc2); |
| 4493 | |
| 4494 | /* Usually more than 3 characters remained in the subject buffer. */ |
| 4495 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(3)); |
| 4496 | |
| 4497 | /* Not a valid start of a multi-byte sequence, no more bytes read. */ |
| 4498 | exit_invalid[0] = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 0xf5 - 0xc2); |
| 4499 | |
| 4500 | buffer_end_close = CMP(SLJIT_GREATER, STR_PTR, 0, STR_END, 0); |
| 4501 | |
| 4502 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-3)); |
| 4503 | OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6); |
| 4504 | /* If TMP2 is in 0x80-0xbf range, TMP1 is also increased by (0x2 << 6). */ |
| 4505 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, TMP2, 0); |
| 4506 | OP2(SLJIT_SUB, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x80); |
| 4507 | exit_invalid[1] = CMP(SLJIT_GREATER_EQUAL, TMP2, 0, SLJIT_IMM, 0x40); |
| 4508 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 4509 | OP2U(SLJIT_AND | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, 0x800); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 4510 | jump = JUMP(SLJIT_NOT_ZERO); |
| 4511 | |
| 4512 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2)); |
| 4513 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 4514 | |
| 4515 | JUMPHERE(jump); |
| 4516 | |
| 4517 | /* Three-byte sequence. */ |
| 4518 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-2)); |
| 4519 | OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6); |
| 4520 | OP2(SLJIT_SUB, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x80); |
| 4521 | OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0); |
| 4522 | if (has_cmov) |
| 4523 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 4524 | OP2U(SLJIT_SUB | SLJIT_SET_GREATER_EQUAL, TMP2, 0, SLJIT_IMM, 0x40); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 4525 | CMOV(SLJIT_GREATER_EQUAL, TMP1, SLJIT_IMM, 0x20000); |
| 4526 | exit_invalid[2] = NULL; |
| 4527 | } |
| 4528 | else |
| 4529 | exit_invalid[2] = CMP(SLJIT_GREATER_EQUAL, TMP2, 0, SLJIT_IMM, 0x40); |
| 4530 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 4531 | OP2U(SLJIT_AND | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, 0x10000); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 4532 | jump = JUMP(SLJIT_NOT_ZERO); |
| 4533 | |
| 4534 | three_byte_entry = LABEL(); |
| 4535 | |
| 4536 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x2d800); |
| 4537 | if (has_cmov) |
| 4538 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 4539 | OP2U(SLJIT_SUB | SLJIT_SET_LESS, TMP1, 0, SLJIT_IMM, 0x800); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 4540 | CMOV(SLJIT_LESS, TMP1, SLJIT_IMM, INVALID_UTF_CHAR - 0xd800); |
| 4541 | exit_invalid[3] = NULL; |
| 4542 | } |
| 4543 | else |
| 4544 | exit_invalid[3] = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0x800); |
| 4545 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xd800); |
| 4546 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 4547 | |
| 4548 | if (has_cmov) |
| 4549 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 4550 | OP2U(SLJIT_SUB | SLJIT_SET_LESS, TMP1, 0, SLJIT_IMM, 0x800); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 4551 | CMOV(SLJIT_LESS, TMP1, SLJIT_IMM, INVALID_UTF_CHAR); |
| 4552 | exit_invalid[4] = NULL; |
| 4553 | } |
| 4554 | else |
| 4555 | exit_invalid[4] = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0x800); |
| 4556 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 4557 | |
| 4558 | JUMPHERE(jump); |
| 4559 | |
| 4560 | /* Four-byte sequence. */ |
| 4561 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-1)); |
| 4562 | OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6); |
| 4563 | OP2(SLJIT_SUB, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x80); |
| 4564 | OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0); |
| 4565 | if (has_cmov) |
| 4566 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 4567 | OP2U(SLJIT_SUB | SLJIT_SET_GREATER_EQUAL, TMP2, 0, SLJIT_IMM, 0x40); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 4568 | CMOV(SLJIT_GREATER_EQUAL, TMP1, SLJIT_IMM, 0); |
| 4569 | exit_invalid[5] = NULL; |
| 4570 | } |
| 4571 | else |
| 4572 | exit_invalid[5] = CMP(SLJIT_GREATER_EQUAL, TMP2, 0, SLJIT_IMM, 0x40); |
| 4573 | |
| 4574 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xc10000); |
| 4575 | if (has_cmov) |
| 4576 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 4577 | OP2U(SLJIT_SUB | SLJIT_SET_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 0x100000); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 4578 | CMOV(SLJIT_GREATER_EQUAL, TMP1, SLJIT_IMM, INVALID_UTF_CHAR - 0x10000); |
| 4579 | exit_invalid[6] = NULL; |
| 4580 | } |
| 4581 | else |
| 4582 | exit_invalid[6] = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 0x100000); |
| 4583 | |
| 4584 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x10000); |
| 4585 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 4586 | |
| 4587 | JUMPHERE(buffer_end_close); |
| 4588 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2)); |
| 4589 | exit_invalid[7] = CMP(SLJIT_GREATER, STR_PTR, 0, STR_END, 0); |
| 4590 | |
| 4591 | /* Two-byte sequence. */ |
| 4592 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-1)); |
| 4593 | OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6); |
| 4594 | /* If TMP2 is in 0x80-0xbf range, TMP1 is also increased by (0x2 << 6). */ |
| 4595 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, TMP2, 0); |
| 4596 | OP2(SLJIT_SUB, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x80); |
| 4597 | exit_invalid[8] = CMP(SLJIT_GREATER_EQUAL, TMP2, 0, SLJIT_IMM, 0x40); |
| 4598 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 4599 | OP2U(SLJIT_AND | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, 0x800); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 4600 | jump = JUMP(SLJIT_NOT_ZERO); |
| 4601 | |
| 4602 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 4603 | |
| 4604 | /* Three-byte sequence. */ |
| 4605 | JUMPHERE(jump); |
| 4606 | exit_invalid[9] = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0); |
| 4607 | |
| 4608 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); |
| 4609 | OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6); |
| 4610 | OP2(SLJIT_SUB, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x80); |
| 4611 | OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0); |
| 4612 | if (has_cmov) |
| 4613 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 4614 | OP2U(SLJIT_SUB | SLJIT_SET_GREATER_EQUAL, TMP2, 0, SLJIT_IMM, 0x40); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 4615 | CMOV(SLJIT_GREATER_EQUAL, TMP1, SLJIT_IMM, INVALID_UTF_CHAR); |
| 4616 | exit_invalid[10] = NULL; |
| 4617 | } |
| 4618 | else |
| 4619 | exit_invalid[10] = CMP(SLJIT_GREATER_EQUAL, TMP2, 0, SLJIT_IMM, 0x40); |
| 4620 | |
| 4621 | /* One will be substracted from STR_PTR later. */ |
| 4622 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2)); |
| 4623 | |
| 4624 | /* Four byte sequences are not possible. */ |
| 4625 | CMPTO(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0x30000, three_byte_entry); |
| 4626 | |
| 4627 | exit_invalid_label = LABEL(); |
| 4628 | for (i = 0; i < 11; i++) |
| 4629 | sljit_set_label(exit_invalid[i], exit_invalid_label); |
| 4630 | |
| 4631 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, INVALID_UTF_CHAR); |
| 4632 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 4633 | } |
| 4634 | |
| 4635 | static void do_utfreadnewline_invalid(compiler_common *common) |
| 4636 | { |
| 4637 | /* Slow decoding a UTF-8 character, specialized for newlines. |
| 4638 | TMP1 contains the first byte of the character (>= 0xc0). Return |
| 4639 | char value in TMP1. */ |
| 4640 | DEFINE_COMPILER; |
| 4641 | struct sljit_label *loop; |
| 4642 | struct sljit_label *skip_start; |
| 4643 | struct sljit_label *three_byte_exit; |
| 4644 | struct sljit_jump *jump[5]; |
| 4645 | |
| 4646 | sljit_emit_fast_enter(compiler, RETURN_ADDR, 0); |
| 4647 | |
| 4648 | if (common->nltype != NLTYPE_ANY) |
| 4649 | { |
| 4650 | SLJIT_ASSERT(common->nltype != NLTYPE_FIXED || common->newline < 128); |
| 4651 | |
| 4652 | /* All newlines are ascii, just skip intermediate octets. */ |
| 4653 | jump[0] = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0); |
| 4654 | loop = LABEL(); |
| 4655 | if (sljit_emit_mem(compiler, MOV_UCHAR | SLJIT_MEM_SUPP | SLJIT_MEM_POST, TMP2, SLJIT_MEM1(STR_PTR), IN_UCHARS(1)) == SLJIT_SUCCESS) |
| 4656 | sljit_emit_mem(compiler, MOV_UCHAR | SLJIT_MEM_POST, TMP2, SLJIT_MEM1(STR_PTR), IN_UCHARS(1)); |
| 4657 | else |
| 4658 | { |
| 4659 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); |
| 4660 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 4661 | } |
| 4662 | |
| 4663 | OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xc0); |
| 4664 | CMPTO(SLJIT_EQUAL, TMP2, 0, SLJIT_IMM, 0x80, loop); |
| 4665 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 4666 | |
| 4667 | JUMPHERE(jump[0]); |
| 4668 | |
| 4669 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, INVALID_UTF_CHAR); |
| 4670 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 4671 | return; |
| 4672 | } |
| 4673 | |
| 4674 | jump[0] = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0); |
| 4675 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); |
| 4676 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 4677 | |
| 4678 | jump[1] = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, 0xc2); |
| 4679 | jump[2] = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, 0xe2); |
| 4680 | |
| 4681 | skip_start = LABEL(); |
| 4682 | OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xc0); |
| 4683 | jump[3] = CMP(SLJIT_NOT_EQUAL, TMP2, 0, SLJIT_IMM, 0x80); |
| 4684 | |
| 4685 | /* Skip intermediate octets. */ |
| 4686 | loop = LABEL(); |
| 4687 | jump[4] = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0); |
| 4688 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); |
| 4689 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 4690 | OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xc0); |
| 4691 | CMPTO(SLJIT_EQUAL, TMP2, 0, SLJIT_IMM, 0x80, loop); |
| 4692 | |
| 4693 | JUMPHERE(jump[3]); |
| 4694 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 4695 | |
| 4696 | three_byte_exit = LABEL(); |
| 4697 | JUMPHERE(jump[0]); |
| 4698 | JUMPHERE(jump[4]); |
| 4699 | |
| 4700 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, INVALID_UTF_CHAR); |
| 4701 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 4702 | |
| 4703 | /* Two byte long newline: 0x85. */ |
| 4704 | JUMPHERE(jump[1]); |
| 4705 | CMPTO(SLJIT_NOT_EQUAL, TMP2, 0, SLJIT_IMM, 0x85, skip_start); |
| 4706 | |
| 4707 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0x85); |
| 4708 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 4709 | |
| 4710 | /* Three byte long newlines: 0x2028 and 0x2029. */ |
| 4711 | JUMPHERE(jump[2]); |
| 4712 | CMPTO(SLJIT_NOT_EQUAL, TMP2, 0, SLJIT_IMM, 0x80, skip_start); |
| 4713 | CMPTO(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0, three_byte_exit); |
| 4714 | |
| 4715 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); |
| 4716 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 4717 | |
| 4718 | OP2(SLJIT_SUB, TMP1, 0, TMP2, 0, SLJIT_IMM, 0x80); |
| 4719 | CMPTO(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 0x40, skip_start); |
| 4720 | |
| 4721 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, 0x2000); |
| 4722 | OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0); |
| 4723 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 4724 | } |
| 4725 | |
| 4726 | static void do_utfmoveback_invalid(compiler_common *common) |
| 4727 | { |
| 4728 | /* Goes one character back. */ |
| 4729 | DEFINE_COMPILER; |
| 4730 | sljit_s32 i; |
| 4731 | struct sljit_jump *jump; |
| 4732 | struct sljit_jump *buffer_start_close; |
| 4733 | struct sljit_label *exit_ok_label; |
| 4734 | struct sljit_label *exit_invalid_label; |
| 4735 | struct sljit_jump *exit_invalid[7]; |
| 4736 | |
| 4737 | sljit_emit_fast_enter(compiler, RETURN_ADDR, 0); |
| 4738 | |
| 4739 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(3)); |
| 4740 | exit_invalid[0] = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 0xc0); |
| 4741 | |
| 4742 | /* Two-byte sequence. */ |
| 4743 | buffer_start_close = CMP(SLJIT_LESS, STR_PTR, 0, TMP2, 0); |
| 4744 | |
| 4745 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(2)); |
| 4746 | |
| 4747 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xc0); |
| 4748 | jump = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 0x20); |
| 4749 | |
| 4750 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 1); |
| 4751 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2)); |
| 4752 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 4753 | |
| 4754 | /* Three-byte sequence. */ |
| 4755 | JUMPHERE(jump); |
| 4756 | exit_invalid[1] = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, -0x40); |
| 4757 | |
| 4758 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1)); |
| 4759 | |
| 4760 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xe0); |
| 4761 | jump = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 0x10); |
| 4762 | |
| 4763 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 1); |
| 4764 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 4765 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 4766 | |
| 4767 | /* Four-byte sequence. */ |
| 4768 | JUMPHERE(jump); |
| 4769 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xe0 - 0x80); |
| 4770 | exit_invalid[2] = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 0x40); |
| 4771 | |
| 4772 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); |
| 4773 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xf0); |
| 4774 | exit_invalid[3] = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 0x05); |
| 4775 | |
| 4776 | exit_ok_label = LABEL(); |
| 4777 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 1); |
| 4778 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 4779 | |
| 4780 | /* Two-byte sequence. */ |
| 4781 | JUMPHERE(buffer_start_close); |
| 4782 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2)); |
| 4783 | |
| 4784 | exit_invalid[4] = CMP(SLJIT_LESS, STR_PTR, 0, TMP2, 0); |
| 4785 | |
| 4786 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); |
| 4787 | |
| 4788 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xc0); |
| 4789 | CMPTO(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0x20, exit_ok_label); |
| 4790 | |
| 4791 | /* Three-byte sequence. */ |
| 4792 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 4793 | exit_invalid[5] = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, -0x40); |
| 4794 | exit_invalid[6] = CMP(SLJIT_LESS, STR_PTR, 0, TMP2, 0); |
| 4795 | |
| 4796 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); |
| 4797 | |
| 4798 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xe0); |
| 4799 | CMPTO(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0x10, exit_ok_label); |
| 4800 | |
| 4801 | /* Four-byte sequences are not possible. */ |
| 4802 | |
| 4803 | exit_invalid_label = LABEL(); |
| 4804 | sljit_set_label(exit_invalid[5], exit_invalid_label); |
| 4805 | sljit_set_label(exit_invalid[6], exit_invalid_label); |
| 4806 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0); |
| 4807 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(3)); |
| 4808 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 4809 | |
| 4810 | JUMPHERE(exit_invalid[4]); |
| 4811 | /* -2 + 4 = 2 */ |
| 4812 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2)); |
| 4813 | |
| 4814 | exit_invalid_label = LABEL(); |
| 4815 | for (i = 0; i < 4; i++) |
| 4816 | sljit_set_label(exit_invalid[i], exit_invalid_label); |
| 4817 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0); |
| 4818 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(4)); |
| 4819 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 4820 | } |
| 4821 | |
| 4822 | static void do_utfpeakcharback(compiler_common *common) |
| 4823 | { |
| 4824 | /* Peak a character back. Does not modify STR_PTR. */ |
| 4825 | DEFINE_COMPILER; |
| 4826 | struct sljit_jump *jump[2]; |
| 4827 | |
| 4828 | sljit_emit_fast_enter(compiler, RETURN_ADDR, 0); |
| 4829 | |
| 4830 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-2)); |
| 4831 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xc0); |
| 4832 | jump[0] = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0x20); |
| 4833 | |
| 4834 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-3)); |
| 4835 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xe0); |
| 4836 | jump[1] = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0x10); |
| 4837 | |
| 4838 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-4)); |
| 4839 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xe0 - 0x80); |
| 4840 | OP2(SLJIT_SUB, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xf0); |
| 4841 | OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 6); |
| 4842 | OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0); |
| 4843 | |
| 4844 | JUMPHERE(jump[1]); |
| 4845 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-2)); |
| 4846 | OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6); |
| 4847 | OP2(SLJIT_SUB, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x80); |
| 4848 | OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0); |
| 4849 | |
| 4850 | JUMPHERE(jump[0]); |
| 4851 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-1)); |
| 4852 | OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 6); |
| 4853 | OP2(SLJIT_SUB, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x80); |
| 4854 | OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0); |
| 4855 | |
| 4856 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 4857 | } |
| 4858 | |
| 4859 | static void do_utfpeakcharback_invalid(compiler_common *common) |
| 4860 | { |
| 4861 | /* Peak a character back. Does not modify STR_PTR. */ |
| 4862 | DEFINE_COMPILER; |
| 4863 | sljit_s32 i; |
| 4864 | sljit_s32 has_cmov = sljit_has_cpu_feature(SLJIT_HAS_CMOV); |
| 4865 | struct sljit_jump *jump[2]; |
| 4866 | struct sljit_label *two_byte_entry; |
| 4867 | struct sljit_label *three_byte_entry; |
| 4868 | struct sljit_label *exit_invalid_label; |
| 4869 | struct sljit_jump *exit_invalid[8]; |
| 4870 | |
| 4871 | sljit_emit_fast_enter(compiler, RETURN_ADDR, 0); |
| 4872 | |
| 4873 | OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, SLJIT_IMM, IN_UCHARS(3)); |
| 4874 | exit_invalid[0] = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 0xc0); |
| 4875 | jump[0] = CMP(SLJIT_GREATER_EQUAL, TMP2, 0, STR_PTR, 0); |
| 4876 | |
| 4877 | /* Two-byte sequence. */ |
| 4878 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-2)); |
| 4879 | OP2(SLJIT_SUB, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xc2); |
| 4880 | jump[1] = CMP(SLJIT_GREATER_EQUAL, TMP2, 0, SLJIT_IMM, 0x1e); |
| 4881 | |
| 4882 | two_byte_entry = LABEL(); |
| 4883 | OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 6); |
| 4884 | /* If TMP1 is in 0x80-0xbf range, TMP1 is also increased by (0x2 << 6). */ |
| 4885 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, TMP2, 0); |
| 4886 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 4887 | |
| 4888 | JUMPHERE(jump[1]); |
| 4889 | OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xc2 - 0x80); |
| 4890 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x80); |
| 4891 | exit_invalid[1] = CMP(SLJIT_GREATER_EQUAL, TMP2, 0, SLJIT_IMM, 0x40); |
| 4892 | OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 6); |
| 4893 | OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0); |
| 4894 | |
| 4895 | /* Three-byte sequence. */ |
| 4896 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-3)); |
| 4897 | OP2(SLJIT_SUB, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xe0); |
| 4898 | jump[1] = CMP(SLJIT_GREATER_EQUAL, TMP2, 0, SLJIT_IMM, 0x10); |
| 4899 | |
| 4900 | three_byte_entry = LABEL(); |
| 4901 | OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 12); |
| 4902 | OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0); |
| 4903 | |
| 4904 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xd800); |
| 4905 | if (has_cmov) |
| 4906 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 4907 | OP2U(SLJIT_SUB | SLJIT_SET_LESS, TMP1, 0, SLJIT_IMM, 0x800); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 4908 | CMOV(SLJIT_LESS, TMP1, SLJIT_IMM, -0xd800); |
| 4909 | exit_invalid[2] = NULL; |
| 4910 | } |
| 4911 | else |
| 4912 | exit_invalid[2] = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0x800); |
| 4913 | |
| 4914 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xd800); |
| 4915 | if (has_cmov) |
| 4916 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 4917 | OP2U(SLJIT_SUB | SLJIT_SET_LESS, TMP1, 0, SLJIT_IMM, 0x800); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 4918 | CMOV(SLJIT_LESS, TMP1, SLJIT_IMM, INVALID_UTF_CHAR); |
| 4919 | exit_invalid[3] = NULL; |
| 4920 | } |
| 4921 | else |
| 4922 | exit_invalid[3] = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0x800); |
| 4923 | |
| 4924 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 4925 | |
| 4926 | JUMPHERE(jump[1]); |
| 4927 | OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xe0 - 0x80); |
| 4928 | exit_invalid[4] = CMP(SLJIT_GREATER_EQUAL, TMP2, 0, SLJIT_IMM, 0x40); |
| 4929 | OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 12); |
| 4930 | OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0); |
| 4931 | |
| 4932 | /* Four-byte sequence. */ |
| 4933 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-4)); |
| 4934 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x10000); |
| 4935 | OP2(SLJIT_SUB, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xf0); |
| 4936 | OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 18); |
| 4937 | /* ADD is used instead of OR because of the SUB 0x10000 above. */ |
| 4938 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, TMP2, 0); |
| 4939 | |
| 4940 | if (has_cmov) |
| 4941 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 4942 | OP2U(SLJIT_SUB | SLJIT_SET_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 0x100000); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 4943 | CMOV(SLJIT_GREATER_EQUAL, TMP1, SLJIT_IMM, INVALID_UTF_CHAR - 0x10000); |
| 4944 | exit_invalid[5] = NULL; |
| 4945 | } |
| 4946 | else |
| 4947 | exit_invalid[5] = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 0x100000); |
| 4948 | |
| 4949 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x10000); |
| 4950 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 4951 | |
| 4952 | JUMPHERE(jump[0]); |
| 4953 | OP2(SLJIT_SUB, TMP2, 0, TMP2, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 4954 | jump[0] = CMP(SLJIT_GREATER_EQUAL, TMP2, 0, STR_PTR, 0); |
| 4955 | |
| 4956 | /* Two-byte sequence. */ |
| 4957 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-2)); |
| 4958 | OP2(SLJIT_SUB, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xc2); |
| 4959 | CMPTO(SLJIT_LESS, TMP2, 0, SLJIT_IMM, 0x1e, two_byte_entry); |
| 4960 | |
| 4961 | OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xc2 - 0x80); |
| 4962 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x80); |
| 4963 | exit_invalid[6] = CMP(SLJIT_GREATER_EQUAL, TMP2, 0, SLJIT_IMM, 0x40); |
| 4964 | OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 6); |
| 4965 | OP2(SLJIT_OR, TMP1, 0, TMP1, 0, TMP2, 0); |
| 4966 | |
| 4967 | /* Three-byte sequence. */ |
| 4968 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-3)); |
| 4969 | OP2(SLJIT_SUB, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xe0); |
| 4970 | CMPTO(SLJIT_LESS, TMP2, 0, SLJIT_IMM, 0x10, three_byte_entry); |
| 4971 | |
| 4972 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, INVALID_UTF_CHAR); |
| 4973 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 4974 | |
| 4975 | JUMPHERE(jump[0]); |
| 4976 | exit_invalid[7] = CMP(SLJIT_GREATER, TMP2, 0, STR_PTR, 0); |
| 4977 | |
| 4978 | /* Two-byte sequence. */ |
| 4979 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-2)); |
| 4980 | OP2(SLJIT_SUB, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xc2); |
| 4981 | CMPTO(SLJIT_LESS, TMP2, 0, SLJIT_IMM, 0x1e, two_byte_entry); |
| 4982 | |
| 4983 | exit_invalid_label = LABEL(); |
| 4984 | for (i = 0; i < 8; i++) |
| 4985 | sljit_set_label(exit_invalid[i], exit_invalid_label); |
| 4986 | |
| 4987 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, INVALID_UTF_CHAR); |
| 4988 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 4989 | } |
| 4990 | |
| 4991 | #endif /* PCRE2_CODE_UNIT_WIDTH == 8 */ |
| 4992 | |
| 4993 | #if PCRE2_CODE_UNIT_WIDTH == 16 |
| 4994 | |
| 4995 | static void do_utfreadchar_invalid(compiler_common *common) |
| 4996 | { |
| 4997 | /* Slow decoding a UTF-16 character. TMP1 contains the first half |
| 4998 | of the character (>= 0xd800). Return char value in TMP1. STR_PTR is |
| 4999 | undefined for invalid characters. */ |
| 5000 | DEFINE_COMPILER; |
| 5001 | struct sljit_jump *exit_invalid[3]; |
| 5002 | |
| 5003 | sljit_emit_fast_enter(compiler, RETURN_ADDR, 0); |
| 5004 | |
| 5005 | /* TMP2 contains the high surrogate. */ |
| 5006 | exit_invalid[0] = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 0xdc00); |
| 5007 | exit_invalid[1] = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0); |
| 5008 | |
| 5009 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); |
| 5010 | OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 10); |
| 5011 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 5012 | |
| 5013 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xdc00); |
| 5014 | OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, SLJIT_IMM, 0x10000); |
| 5015 | exit_invalid[2] = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 0x400); |
| 5016 | |
| 5017 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, TMP2, 0); |
| 5018 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 5019 | |
| 5020 | JUMPHERE(exit_invalid[0]); |
| 5021 | JUMPHERE(exit_invalid[1]); |
| 5022 | JUMPHERE(exit_invalid[2]); |
| 5023 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, INVALID_UTF_CHAR); |
| 5024 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 5025 | } |
| 5026 | |
| 5027 | static void do_utfreadnewline_invalid(compiler_common *common) |
| 5028 | { |
| 5029 | /* Slow decoding a UTF-16 character, specialized for newlines. |
| 5030 | TMP1 contains the first half of the character (>= 0xd800). Return |
| 5031 | char value in TMP1. */ |
| 5032 | |
| 5033 | DEFINE_COMPILER; |
| 5034 | struct sljit_jump *exit_invalid[2]; |
| 5035 | |
| 5036 | sljit_emit_fast_enter(compiler, RETURN_ADDR, 0); |
| 5037 | |
| 5038 | /* TMP2 contains the high surrogate. */ |
| 5039 | exit_invalid[0] = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0); |
| 5040 | |
| 5041 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); |
| 5042 | exit_invalid[1] = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 0xdc00); |
| 5043 | |
| 5044 | OP2(SLJIT_SUB, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xdc00); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 5045 | OP2U(SLJIT_SUB | SLJIT_SET_LESS, TMP2, 0, SLJIT_IMM, 0x400); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 5046 | OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_LESS); |
| 5047 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0x10000); |
| 5048 | OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, UCHAR_SHIFT); |
| 5049 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0); |
| 5050 | |
| 5051 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 5052 | |
| 5053 | JUMPHERE(exit_invalid[0]); |
| 5054 | JUMPHERE(exit_invalid[1]); |
| 5055 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, INVALID_UTF_CHAR); |
| 5056 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 5057 | } |
| 5058 | |
| 5059 | static void do_utfmoveback_invalid(compiler_common *common) |
| 5060 | { |
| 5061 | /* Goes one character back. */ |
| 5062 | DEFINE_COMPILER; |
| 5063 | struct sljit_jump *exit_invalid[3]; |
| 5064 | |
| 5065 | sljit_emit_fast_enter(compiler, RETURN_ADDR, 0); |
| 5066 | |
| 5067 | exit_invalid[0] = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0x400); |
| 5068 | exit_invalid[1] = CMP(SLJIT_GREATER_EQUAL, TMP2, 0, STR_PTR, 0); |
| 5069 | |
| 5070 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-1)); |
| 5071 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xd800); |
| 5072 | exit_invalid[2] = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 0x400); |
| 5073 | |
| 5074 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 5075 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 1); |
| 5076 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 5077 | |
| 5078 | JUMPHERE(exit_invalid[0]); |
| 5079 | JUMPHERE(exit_invalid[1]); |
| 5080 | JUMPHERE(exit_invalid[2]); |
| 5081 | |
| 5082 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 5083 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0); |
| 5084 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 5085 | } |
| 5086 | |
| 5087 | static void do_utfpeakcharback_invalid(compiler_common *common) |
| 5088 | { |
| 5089 | /* Peak a character back. Does not modify STR_PTR. */ |
| 5090 | DEFINE_COMPILER; |
| 5091 | struct sljit_jump *jump; |
| 5092 | struct sljit_jump *exit_invalid[3]; |
| 5093 | |
| 5094 | sljit_emit_fast_enter(compiler, RETURN_ADDR, 0); |
| 5095 | |
| 5096 | jump = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 0xe000); |
| 5097 | OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 5098 | exit_invalid[0] = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0xdc00); |
| 5099 | exit_invalid[1] = CMP(SLJIT_GREATER_EQUAL, TMP2, 0, STR_PTR, 0); |
| 5100 | |
| 5101 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-2)); |
| 5102 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x10000 - 0xdc00); |
| 5103 | OP2(SLJIT_SUB, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xd800); |
| 5104 | exit_invalid[2] = CMP(SLJIT_GREATER_EQUAL, TMP2, 0, SLJIT_IMM, 0x400); |
| 5105 | OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 10); |
| 5106 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, TMP2, 0); |
| 5107 | |
| 5108 | JUMPHERE(jump); |
| 5109 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 5110 | |
| 5111 | JUMPHERE(exit_invalid[0]); |
| 5112 | JUMPHERE(exit_invalid[1]); |
| 5113 | JUMPHERE(exit_invalid[2]); |
| 5114 | |
| 5115 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, INVALID_UTF_CHAR); |
| 5116 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 5117 | } |
| 5118 | |
| 5119 | #endif /* PCRE2_CODE_UNIT_WIDTH == 16 */ |
| 5120 | |
| 5121 | /* UCD_BLOCK_SIZE must be 128 (see the assert below). */ |
| 5122 | #define UCD_BLOCK_MASK 127 |
| 5123 | #define UCD_BLOCK_SHIFT 7 |
| 5124 | |
| 5125 | static void do_getucd(compiler_common *common) |
| 5126 | { |
| 5127 | /* Search the UCD record for the character comes in TMP1. |
| 5128 | Returns chartype in TMP1 and UCD offset in TMP2. */ |
| 5129 | DEFINE_COMPILER; |
| 5130 | #if PCRE2_CODE_UNIT_WIDTH == 32 |
| 5131 | struct sljit_jump *jump; |
| 5132 | #endif |
| 5133 | |
| 5134 | #if defined SLJIT_DEBUG && SLJIT_DEBUG |
| 5135 | /* dummy_ucd_record */ |
| 5136 | const ucd_record *record = GET_UCD(UNASSIGNED_UTF_CHAR); |
| 5137 | SLJIT_ASSERT(record->script == ucp_Unknown && record->chartype == ucp_Cn && record->gbprop == ucp_gbOther); |
| 5138 | SLJIT_ASSERT(record->caseset == 0 && record->other_case == 0); |
| 5139 | #endif |
| 5140 | |
| 5141 | SLJIT_ASSERT(UCD_BLOCK_SIZE == 128 && sizeof(ucd_record) == 12); |
| 5142 | |
| 5143 | sljit_emit_fast_enter(compiler, RETURN_ADDR, 0); |
| 5144 | |
| 5145 | #if PCRE2_CODE_UNIT_WIDTH == 32 |
| 5146 | if (!common->utf) |
| 5147 | { |
| 5148 | jump = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, MAX_UTF_CODE_POINT + 1); |
| 5149 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, UNASSIGNED_UTF_CHAR); |
| 5150 | JUMPHERE(jump); |
| 5151 | } |
| 5152 | #endif |
| 5153 | |
| 5154 | OP2(SLJIT_LSHR, TMP2, 0, TMP1, 0, SLJIT_IMM, UCD_BLOCK_SHIFT); |
| 5155 | OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 1); |
| 5156 | OP1(SLJIT_MOV_U16, TMP2, 0, SLJIT_MEM1(TMP2), (sljit_sw)PRIV(ucd_stage1)); |
| 5157 | OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, UCD_BLOCK_MASK); |
| 5158 | OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, UCD_BLOCK_SHIFT); |
| 5159 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, TMP2, 0); |
| 5160 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, (sljit_sw)PRIV(ucd_stage2)); |
| 5161 | OP1(SLJIT_MOV_U16, TMP2, 0, SLJIT_MEM2(TMP2, TMP1), 1); |
| 5162 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 5163 | } |
| 5164 | |
| 5165 | static void do_getucdtype(compiler_common *common) |
| 5166 | { |
| 5167 | /* Search the UCD record for the character comes in TMP1. |
| 5168 | Returns chartype in TMP1 and UCD offset in TMP2. */ |
| 5169 | DEFINE_COMPILER; |
| 5170 | #if PCRE2_CODE_UNIT_WIDTH == 32 |
| 5171 | struct sljit_jump *jump; |
| 5172 | #endif |
| 5173 | |
| 5174 | #if defined SLJIT_DEBUG && SLJIT_DEBUG |
| 5175 | /* dummy_ucd_record */ |
| 5176 | const ucd_record *record = GET_UCD(UNASSIGNED_UTF_CHAR); |
| 5177 | SLJIT_ASSERT(record->script == ucp_Unknown && record->chartype == ucp_Cn && record->gbprop == ucp_gbOther); |
| 5178 | SLJIT_ASSERT(record->caseset == 0 && record->other_case == 0); |
| 5179 | #endif |
| 5180 | |
| 5181 | SLJIT_ASSERT(UCD_BLOCK_SIZE == 128 && sizeof(ucd_record) == 12); |
| 5182 | |
| 5183 | sljit_emit_fast_enter(compiler, RETURN_ADDR, 0); |
| 5184 | |
| 5185 | #if PCRE2_CODE_UNIT_WIDTH == 32 |
| 5186 | if (!common->utf) |
| 5187 | { |
| 5188 | jump = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, MAX_UTF_CODE_POINT + 1); |
| 5189 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, UNASSIGNED_UTF_CHAR); |
| 5190 | JUMPHERE(jump); |
| 5191 | } |
| 5192 | #endif |
| 5193 | |
| 5194 | OP2(SLJIT_LSHR, TMP2, 0, TMP1, 0, SLJIT_IMM, UCD_BLOCK_SHIFT); |
| 5195 | OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 1); |
| 5196 | OP1(SLJIT_MOV_U16, TMP2, 0, SLJIT_MEM1(TMP2), (sljit_sw)PRIV(ucd_stage1)); |
| 5197 | OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, UCD_BLOCK_MASK); |
| 5198 | OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, UCD_BLOCK_SHIFT); |
| 5199 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, TMP2, 0); |
| 5200 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, (sljit_sw)PRIV(ucd_stage2)); |
| 5201 | OP1(SLJIT_MOV_U16, TMP2, 0, SLJIT_MEM2(TMP2, TMP1), 1); |
| 5202 | |
| 5203 | /* TMP2 is multiplied by 12. Same as (TMP2 << 2) + ((TMP2 << 2) << 1). */ |
| 5204 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, (sljit_sw)PRIV(ucd_records) + SLJIT_OFFSETOF(ucd_record, chartype)); |
| 5205 | OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 2); |
| 5206 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, TMP2, 0); |
| 5207 | OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM2(TMP1, TMP2), 1); |
| 5208 | |
| 5209 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 5210 | } |
| 5211 | |
| 5212 | #endif /* SUPPORT_UNICODE */ |
| 5213 | |
| 5214 | static SLJIT_INLINE struct sljit_label *mainloop_entry(compiler_common *common) |
| 5215 | { |
| 5216 | DEFINE_COMPILER; |
| 5217 | struct sljit_label *mainloop; |
| 5218 | struct sljit_label *newlinelabel = NULL; |
| 5219 | struct sljit_jump *start; |
| 5220 | struct sljit_jump *end = NULL; |
| 5221 | struct sljit_jump *end2 = NULL; |
| 5222 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 5223 | struct sljit_label *loop; |
| 5224 | struct sljit_jump *jump; |
| 5225 | #endif /* SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 */ |
| 5226 | jump_list *newline = NULL; |
| 5227 | sljit_u32 overall_options = common->re->overall_options; |
| 5228 | BOOL hascrorlf = (common->re->flags & PCRE2_HASCRORLF) != 0; |
| 5229 | BOOL newlinecheck = FALSE; |
| 5230 | BOOL readuchar = FALSE; |
| 5231 | |
| 5232 | if (!(hascrorlf || (overall_options & PCRE2_FIRSTLINE) != 0) |
| 5233 | && (common->nltype == NLTYPE_ANY || common->nltype == NLTYPE_ANYCRLF || common->newline > 255)) |
| 5234 | newlinecheck = TRUE; |
| 5235 | |
| 5236 | SLJIT_ASSERT(common->abort_label == NULL); |
| 5237 | |
| 5238 | if ((overall_options & PCRE2_FIRSTLINE) != 0) |
| 5239 | { |
| 5240 | /* Search for the end of the first line. */ |
| 5241 | SLJIT_ASSERT(common->match_end_ptr != 0); |
| 5242 | OP1(SLJIT_MOV, TMP3, 0, STR_PTR, 0); |
| 5243 | |
| 5244 | if (common->nltype == NLTYPE_FIXED && common->newline > 255) |
| 5245 | { |
| 5246 | mainloop = LABEL(); |
| 5247 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 5248 | end = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0); |
| 5249 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-1)); |
| 5250 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); |
| 5251 | CMPTO(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff, mainloop); |
| 5252 | CMPTO(SLJIT_NOT_EQUAL, TMP2, 0, SLJIT_IMM, common->newline & 0xff, mainloop); |
| 5253 | JUMPHERE(end); |
| 5254 | OP2(SLJIT_SUB, SLJIT_MEM1(SLJIT_SP), common->match_end_ptr, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 5255 | } |
| 5256 | else |
| 5257 | { |
| 5258 | end = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0); |
| 5259 | mainloop = LABEL(); |
| 5260 | /* Continual stores does not cause data dependency. */ |
| 5261 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->match_end_ptr, STR_PTR, 0); |
| 5262 | read_char(common, common->nlmin, common->nlmax, NULL, READ_CHAR_NEWLINE); |
| 5263 | check_newlinechar(common, common->nltype, &newline, TRUE); |
| 5264 | CMPTO(SLJIT_LESS, STR_PTR, 0, STR_END, 0, mainloop); |
| 5265 | JUMPHERE(end); |
| 5266 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->match_end_ptr, STR_PTR, 0); |
| 5267 | set_jumps(newline, LABEL()); |
| 5268 | } |
| 5269 | |
| 5270 | OP1(SLJIT_MOV, STR_PTR, 0, TMP3, 0); |
| 5271 | } |
| 5272 | else if ((overall_options & PCRE2_USE_OFFSET_LIMIT) != 0) |
| 5273 | { |
| 5274 | /* Check whether offset limit is set and valid. */ |
| 5275 | SLJIT_ASSERT(common->match_end_ptr != 0); |
| 5276 | |
| 5277 | if (HAS_VIRTUAL_REGISTERS) |
| 5278 | { |
| 5279 | OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0); |
| 5280 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, offset_limit)); |
| 5281 | } |
| 5282 | else |
| 5283 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(ARGUMENTS), SLJIT_OFFSETOF(jit_arguments, offset_limit)); |
| 5284 | |
| 5285 | OP1(SLJIT_MOV, TMP2, 0, STR_END, 0); |
| 5286 | end = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, (sljit_sw) PCRE2_UNSET); |
| 5287 | if (HAS_VIRTUAL_REGISTERS) |
| 5288 | OP1(SLJIT_MOV, TMP2, 0, ARGUMENTS, 0); |
| 5289 | else |
| 5290 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(ARGUMENTS), SLJIT_OFFSETOF(jit_arguments, begin)); |
| 5291 | |
| 5292 | #if PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32 |
| 5293 | OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, UCHAR_SHIFT); |
| 5294 | #endif /* PCRE2_CODE_UNIT_WIDTH == [16|32] */ |
| 5295 | if (HAS_VIRTUAL_REGISTERS) |
| 5296 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(jit_arguments, begin)); |
| 5297 | |
| 5298 | OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, TMP1, 0); |
| 5299 | end2 = CMP(SLJIT_LESS_EQUAL, TMP2, 0, STR_END, 0); |
| 5300 | OP1(SLJIT_MOV, TMP2, 0, STR_END, 0); |
| 5301 | JUMPHERE(end2); |
| 5302 | OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, PCRE2_ERROR_NOMATCH); |
| 5303 | add_jump(compiler, &common->abort, CMP(SLJIT_LESS, TMP2, 0, STR_PTR, 0)); |
| 5304 | JUMPHERE(end); |
| 5305 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->match_end_ptr, TMP2, 0); |
| 5306 | } |
| 5307 | |
| 5308 | start = JUMP(SLJIT_JUMP); |
| 5309 | |
| 5310 | if (newlinecheck) |
| 5311 | { |
| 5312 | newlinelabel = LABEL(); |
| 5313 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 5314 | end = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0); |
| 5315 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 5316 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, common->newline & 0xff); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 5317 | OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_EQUAL); |
| 5318 | #if PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32 |
| 5319 | OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, UCHAR_SHIFT); |
| 5320 | #endif /* PCRE2_CODE_UNIT_WIDTH == [16|32] */ |
| 5321 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0); |
| 5322 | end2 = JUMP(SLJIT_JUMP); |
| 5323 | } |
| 5324 | |
| 5325 | mainloop = LABEL(); |
| 5326 | |
| 5327 | /* Increasing the STR_PTR here requires one less jump in the most common case. */ |
| 5328 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 5329 | if (common->utf && !common->invalid_utf) readuchar = TRUE; |
| 5330 | #endif /* SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 */ |
| 5331 | if (newlinecheck) readuchar = TRUE; |
| 5332 | |
| 5333 | if (readuchar) |
| 5334 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0); |
| 5335 | |
| 5336 | if (newlinecheck) |
| 5337 | CMPTO(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff, newlinelabel); |
| 5338 | |
| 5339 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 5340 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 5341 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 5342 | if (common->invalid_utf) |
| 5343 | { |
| 5344 | /* Skip continuation code units. */ |
| 5345 | loop = LABEL(); |
| 5346 | jump = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0); |
| 5347 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0); |
| 5348 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 5349 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x80); |
| 5350 | CMPTO(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0x40, loop); |
| 5351 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 5352 | JUMPHERE(jump); |
| 5353 | } |
| 5354 | else if (common->utf) |
| 5355 | { |
| 5356 | jump = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0xc0); |
| 5357 | OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)PRIV(utf8_table4) - 0xc0); |
| 5358 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0); |
| 5359 | JUMPHERE(jump); |
| 5360 | } |
| 5361 | #elif PCRE2_CODE_UNIT_WIDTH == 16 |
| 5362 | if (common->invalid_utf) |
| 5363 | { |
| 5364 | /* Skip continuation code units. */ |
| 5365 | loop = LABEL(); |
| 5366 | jump = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0); |
| 5367 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0); |
| 5368 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 5369 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xdc00); |
| 5370 | CMPTO(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0x400, loop); |
| 5371 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 5372 | JUMPHERE(jump); |
| 5373 | } |
| 5374 | else if (common->utf) |
| 5375 | { |
| 5376 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xd800); |
| 5377 | |
| 5378 | if (sljit_has_cpu_feature(SLJIT_HAS_CMOV)) |
| 5379 | { |
| 5380 | OP2(SLJIT_ADD, TMP2, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 5381 | OP2U(SLJIT_SUB | SLJIT_SET_LESS, TMP1, 0, SLJIT_IMM, 0x400); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 5382 | CMOV(SLJIT_LESS, STR_PTR, TMP2, 0); |
| 5383 | } |
| 5384 | else |
| 5385 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 5386 | OP2U(SLJIT_SUB | SLJIT_SET_LESS, TMP1, 0, SLJIT_IMM, 0x400); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 5387 | OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_LESS); |
| 5388 | OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, UCHAR_SHIFT); |
| 5389 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0); |
| 5390 | } |
| 5391 | } |
| 5392 | #endif /* PCRE2_CODE_UNIT_WIDTH == [8|16] */ |
| 5393 | #endif /* SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 */ |
| 5394 | JUMPHERE(start); |
| 5395 | |
| 5396 | if (newlinecheck) |
| 5397 | { |
| 5398 | JUMPHERE(end); |
| 5399 | JUMPHERE(end2); |
| 5400 | } |
| 5401 | |
| 5402 | return mainloop; |
| 5403 | } |
| 5404 | |
| 5405 | |
| 5406 | static SLJIT_INLINE void add_prefix_char(PCRE2_UCHAR chr, fast_forward_char_data *chars, BOOL last) |
| 5407 | { |
| 5408 | sljit_u32 i, count = chars->count; |
| 5409 | |
| 5410 | if (count == 255) |
| 5411 | return; |
| 5412 | |
| 5413 | if (count == 0) |
| 5414 | { |
| 5415 | chars->count = 1; |
| 5416 | chars->chars[0] = chr; |
| 5417 | |
| 5418 | if (last) |
| 5419 | chars->last_count = 1; |
| 5420 | return; |
| 5421 | } |
| 5422 | |
| 5423 | for (i = 0; i < count; i++) |
| 5424 | if (chars->chars[i] == chr) |
| 5425 | return; |
| 5426 | |
| 5427 | if (count >= MAX_DIFF_CHARS) |
| 5428 | { |
| 5429 | chars->count = 255; |
| 5430 | return; |
| 5431 | } |
| 5432 | |
| 5433 | chars->chars[count] = chr; |
| 5434 | chars->count = count + 1; |
| 5435 | |
| 5436 | if (last) |
| 5437 | chars->last_count++; |
| 5438 | } |
| 5439 | |
| 5440 | static int scan_prefix(compiler_common *common, PCRE2_SPTR cc, fast_forward_char_data *chars, int max_chars, sljit_u32 *rec_count) |
| 5441 | { |
| 5442 | /* Recursive function, which scans prefix literals. */ |
| 5443 | BOOL last, any, class, caseless; |
| 5444 | int len, repeat, len_save, consumed = 0; |
| 5445 | sljit_u32 chr; /* Any unicode character. */ |
| 5446 | sljit_u8 *bytes, *bytes_end, byte; |
| 5447 | PCRE2_SPTR alternative, cc_save, oc; |
| 5448 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8 |
| 5449 | PCRE2_UCHAR othercase[4]; |
| 5450 | #elif defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 16 |
| 5451 | PCRE2_UCHAR othercase[2]; |
| 5452 | #else |
| 5453 | PCRE2_UCHAR othercase[1]; |
| 5454 | #endif |
| 5455 | |
| 5456 | repeat = 1; |
| 5457 | while (TRUE) |
| 5458 | { |
| 5459 | if (*rec_count == 0) |
| 5460 | return 0; |
| 5461 | (*rec_count)--; |
| 5462 | |
| 5463 | last = TRUE; |
| 5464 | any = FALSE; |
| 5465 | class = FALSE; |
| 5466 | caseless = FALSE; |
| 5467 | |
| 5468 | switch (*cc) |
| 5469 | { |
| 5470 | case OP_CHARI: |
| 5471 | caseless = TRUE; |
| 5472 | /* Fall through */ |
| 5473 | case OP_CHAR: |
| 5474 | last = FALSE; |
| 5475 | cc++; |
| 5476 | break; |
| 5477 | |
| 5478 | case OP_SOD: |
| 5479 | case OP_SOM: |
| 5480 | case OP_SET_SOM: |
| 5481 | case OP_NOT_WORD_BOUNDARY: |
| 5482 | case OP_WORD_BOUNDARY: |
| 5483 | case OP_EODN: |
| 5484 | case OP_EOD: |
| 5485 | case OP_CIRC: |
| 5486 | case OP_CIRCM: |
| 5487 | case OP_DOLL: |
| 5488 | case OP_DOLLM: |
| 5489 | /* Zero width assertions. */ |
| 5490 | cc++; |
| 5491 | continue; |
| 5492 | |
| 5493 | case OP_ASSERT: |
| 5494 | case OP_ASSERT_NOT: |
| 5495 | case OP_ASSERTBACK: |
| 5496 | case OP_ASSERTBACK_NOT: |
| 5497 | case OP_ASSERT_NA: |
| 5498 | case OP_ASSERTBACK_NA: |
| 5499 | cc = bracketend(cc); |
| 5500 | continue; |
| 5501 | |
| 5502 | case OP_PLUSI: |
| 5503 | case OP_MINPLUSI: |
| 5504 | case OP_POSPLUSI: |
| 5505 | caseless = TRUE; |
| 5506 | /* Fall through */ |
| 5507 | case OP_PLUS: |
| 5508 | case OP_MINPLUS: |
| 5509 | case OP_POSPLUS: |
| 5510 | cc++; |
| 5511 | break; |
| 5512 | |
| 5513 | case OP_EXACTI: |
| 5514 | caseless = TRUE; |
| 5515 | /* Fall through */ |
| 5516 | case OP_EXACT: |
| 5517 | repeat = GET2(cc, 1); |
| 5518 | last = FALSE; |
| 5519 | cc += 1 + IMM2_SIZE; |
| 5520 | break; |
| 5521 | |
| 5522 | case OP_QUERYI: |
| 5523 | case OP_MINQUERYI: |
| 5524 | case OP_POSQUERYI: |
| 5525 | caseless = TRUE; |
| 5526 | /* Fall through */ |
| 5527 | case OP_QUERY: |
| 5528 | case OP_MINQUERY: |
| 5529 | case OP_POSQUERY: |
| 5530 | len = 1; |
| 5531 | cc++; |
| 5532 | #ifdef SUPPORT_UNICODE |
| 5533 | if (common->utf && HAS_EXTRALEN(*cc)) len += GET_EXTRALEN(*cc); |
| 5534 | #endif |
| 5535 | max_chars = scan_prefix(common, cc + len, chars, max_chars, rec_count); |
| 5536 | if (max_chars == 0) |
| 5537 | return consumed; |
| 5538 | last = FALSE; |
| 5539 | break; |
| 5540 | |
| 5541 | case OP_KET: |
| 5542 | cc += 1 + LINK_SIZE; |
| 5543 | continue; |
| 5544 | |
| 5545 | case OP_ALT: |
| 5546 | cc += GET(cc, 1); |
| 5547 | continue; |
| 5548 | |
| 5549 | case OP_ONCE: |
| 5550 | case OP_BRA: |
| 5551 | case OP_BRAPOS: |
| 5552 | case OP_CBRA: |
| 5553 | case OP_CBRAPOS: |
| 5554 | alternative = cc + GET(cc, 1); |
| 5555 | while (*alternative == OP_ALT) |
| 5556 | { |
| 5557 | max_chars = scan_prefix(common, alternative + 1 + LINK_SIZE, chars, max_chars, rec_count); |
| 5558 | if (max_chars == 0) |
| 5559 | return consumed; |
| 5560 | alternative += GET(alternative, 1); |
| 5561 | } |
| 5562 | |
| 5563 | if (*cc == OP_CBRA || *cc == OP_CBRAPOS) |
| 5564 | cc += IMM2_SIZE; |
| 5565 | cc += 1 + LINK_SIZE; |
| 5566 | continue; |
| 5567 | |
| 5568 | case OP_CLASS: |
| 5569 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8 |
| 5570 | if (common->utf && !is_char7_bitset((const sljit_u8 *)(cc + 1), FALSE)) |
| 5571 | return consumed; |
| 5572 | #endif |
| 5573 | class = TRUE; |
| 5574 | break; |
| 5575 | |
| 5576 | case OP_NCLASS: |
| 5577 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 5578 | if (common->utf) return consumed; |
| 5579 | #endif |
| 5580 | class = TRUE; |
| 5581 | break; |
| 5582 | |
| 5583 | #if defined SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH != 8 |
| 5584 | case OP_XCLASS: |
| 5585 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 5586 | if (common->utf) return consumed; |
| 5587 | #endif |
| 5588 | any = TRUE; |
| 5589 | cc += GET(cc, 1); |
| 5590 | break; |
| 5591 | #endif |
| 5592 | |
| 5593 | case OP_DIGIT: |
| 5594 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8 |
| 5595 | if (common->utf && !is_char7_bitset((const sljit_u8 *)common->ctypes - cbit_length + cbit_digit, FALSE)) |
| 5596 | return consumed; |
| 5597 | #endif |
| 5598 | any = TRUE; |
| 5599 | cc++; |
| 5600 | break; |
| 5601 | |
| 5602 | case OP_WHITESPACE: |
| 5603 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8 |
| 5604 | if (common->utf && !is_char7_bitset((const sljit_u8 *)common->ctypes - cbit_length + cbit_space, FALSE)) |
| 5605 | return consumed; |
| 5606 | #endif |
| 5607 | any = TRUE; |
| 5608 | cc++; |
| 5609 | break; |
| 5610 | |
| 5611 | case OP_WORDCHAR: |
| 5612 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8 |
| 5613 | if (common->utf && !is_char7_bitset((const sljit_u8 *)common->ctypes - cbit_length + cbit_word, FALSE)) |
| 5614 | return consumed; |
| 5615 | #endif |
| 5616 | any = TRUE; |
| 5617 | cc++; |
| 5618 | break; |
| 5619 | |
| 5620 | case OP_NOT: |
| 5621 | case OP_NOTI: |
| 5622 | cc++; |
| 5623 | /* Fall through. */ |
| 5624 | case OP_NOT_DIGIT: |
| 5625 | case OP_NOT_WHITESPACE: |
| 5626 | case OP_NOT_WORDCHAR: |
| 5627 | case OP_ANY: |
| 5628 | case OP_ALLANY: |
| 5629 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 5630 | if (common->utf) return consumed; |
| 5631 | #endif |
| 5632 | any = TRUE; |
| 5633 | cc++; |
| 5634 | break; |
| 5635 | |
| 5636 | #ifdef SUPPORT_UNICODE |
| 5637 | case OP_NOTPROP: |
| 5638 | case OP_PROP: |
| 5639 | #if PCRE2_CODE_UNIT_WIDTH != 32 |
| 5640 | if (common->utf) return consumed; |
| 5641 | #endif |
| 5642 | any = TRUE; |
| 5643 | cc += 1 + 2; |
| 5644 | break; |
| 5645 | #endif |
| 5646 | |
| 5647 | case OP_TYPEEXACT: |
| 5648 | repeat = GET2(cc, 1); |
| 5649 | cc += 1 + IMM2_SIZE; |
| 5650 | continue; |
| 5651 | |
| 5652 | case OP_NOTEXACT: |
| 5653 | case OP_NOTEXACTI: |
| 5654 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 5655 | if (common->utf) return consumed; |
| 5656 | #endif |
| 5657 | any = TRUE; |
| 5658 | repeat = GET2(cc, 1); |
| 5659 | cc += 1 + IMM2_SIZE + 1; |
| 5660 | break; |
| 5661 | |
| 5662 | default: |
| 5663 | return consumed; |
| 5664 | } |
| 5665 | |
| 5666 | if (any) |
| 5667 | { |
| 5668 | do |
| 5669 | { |
| 5670 | chars->count = 255; |
| 5671 | |
| 5672 | consumed++; |
| 5673 | if (--max_chars == 0) |
| 5674 | return consumed; |
| 5675 | chars++; |
| 5676 | } |
| 5677 | while (--repeat > 0); |
| 5678 | |
| 5679 | repeat = 1; |
| 5680 | continue; |
| 5681 | } |
| 5682 | |
| 5683 | if (class) |
| 5684 | { |
| 5685 | bytes = (sljit_u8*) (cc + 1); |
| 5686 | cc += 1 + 32 / sizeof(PCRE2_UCHAR); |
| 5687 | |
| 5688 | switch (*cc) |
| 5689 | { |
| 5690 | case OP_CRSTAR: |
| 5691 | case OP_CRMINSTAR: |
| 5692 | case OP_CRPOSSTAR: |
| 5693 | case OP_CRQUERY: |
| 5694 | case OP_CRMINQUERY: |
| 5695 | case OP_CRPOSQUERY: |
| 5696 | max_chars = scan_prefix(common, cc + 1, chars, max_chars, rec_count); |
| 5697 | if (max_chars == 0) |
| 5698 | return consumed; |
| 5699 | break; |
| 5700 | |
| 5701 | default: |
| 5702 | case OP_CRPLUS: |
| 5703 | case OP_CRMINPLUS: |
| 5704 | case OP_CRPOSPLUS: |
| 5705 | break; |
| 5706 | |
| 5707 | case OP_CRRANGE: |
| 5708 | case OP_CRMINRANGE: |
| 5709 | case OP_CRPOSRANGE: |
| 5710 | repeat = GET2(cc, 1); |
| 5711 | if (repeat <= 0) |
| 5712 | return consumed; |
| 5713 | break; |
| 5714 | } |
| 5715 | |
| 5716 | do |
| 5717 | { |
| 5718 | if (bytes[31] & 0x80) |
| 5719 | chars->count = 255; |
| 5720 | else if (chars->count != 255) |
| 5721 | { |
| 5722 | bytes_end = bytes + 32; |
| 5723 | chr = 0; |
| 5724 | do |
| 5725 | { |
| 5726 | byte = *bytes++; |
| 5727 | SLJIT_ASSERT((chr & 0x7) == 0); |
| 5728 | if (byte == 0) |
| 5729 | chr += 8; |
| 5730 | else |
| 5731 | { |
| 5732 | do |
| 5733 | { |
| 5734 | if ((byte & 0x1) != 0) |
| 5735 | add_prefix_char(chr, chars, TRUE); |
| 5736 | byte >>= 1; |
| 5737 | chr++; |
| 5738 | } |
| 5739 | while (byte != 0); |
| 5740 | chr = (chr + 7) & ~7; |
| 5741 | } |
| 5742 | } |
| 5743 | while (chars->count != 255 && bytes < bytes_end); |
| 5744 | bytes = bytes_end - 32; |
| 5745 | } |
| 5746 | |
| 5747 | consumed++; |
| 5748 | if (--max_chars == 0) |
| 5749 | return consumed; |
| 5750 | chars++; |
| 5751 | } |
| 5752 | while (--repeat > 0); |
| 5753 | |
| 5754 | switch (*cc) |
| 5755 | { |
| 5756 | case OP_CRSTAR: |
| 5757 | case OP_CRMINSTAR: |
| 5758 | case OP_CRPOSSTAR: |
| 5759 | return consumed; |
| 5760 | |
| 5761 | case OP_CRQUERY: |
| 5762 | case OP_CRMINQUERY: |
| 5763 | case OP_CRPOSQUERY: |
| 5764 | cc++; |
| 5765 | break; |
| 5766 | |
| 5767 | case OP_CRRANGE: |
| 5768 | case OP_CRMINRANGE: |
| 5769 | case OP_CRPOSRANGE: |
| 5770 | if (GET2(cc, 1) != GET2(cc, 1 + IMM2_SIZE)) |
| 5771 | return consumed; |
| 5772 | cc += 1 + 2 * IMM2_SIZE; |
| 5773 | break; |
| 5774 | } |
| 5775 | |
| 5776 | repeat = 1; |
| 5777 | continue; |
| 5778 | } |
| 5779 | |
| 5780 | len = 1; |
| 5781 | #ifdef SUPPORT_UNICODE |
| 5782 | if (common->utf && HAS_EXTRALEN(*cc)) len += GET_EXTRALEN(*cc); |
| 5783 | #endif |
| 5784 | |
| 5785 | if (caseless && char_has_othercase(common, cc)) |
| 5786 | { |
| 5787 | #ifdef SUPPORT_UNICODE |
| 5788 | if (common->utf) |
| 5789 | { |
| 5790 | GETCHAR(chr, cc); |
| 5791 | if ((int)PRIV(ord2utf)(char_othercase(common, chr), othercase) != len) |
| 5792 | return consumed; |
| 5793 | } |
| 5794 | else |
| 5795 | #endif |
| 5796 | { |
| 5797 | chr = *cc; |
| 5798 | #ifdef SUPPORT_UNICODE |
| 5799 | if (common->ucp && chr > 127) |
| 5800 | othercase[0] = UCD_OTHERCASE(chr); |
| 5801 | else |
| 5802 | #endif |
| 5803 | othercase[0] = TABLE_GET(chr, common->fcc, chr); |
| 5804 | } |
| 5805 | } |
| 5806 | else |
| 5807 | { |
| 5808 | caseless = FALSE; |
| 5809 | othercase[0] = 0; /* Stops compiler warning - PH */ |
| 5810 | } |
| 5811 | |
| 5812 | len_save = len; |
| 5813 | cc_save = cc; |
| 5814 | while (TRUE) |
| 5815 | { |
| 5816 | oc = othercase; |
| 5817 | do |
| 5818 | { |
| 5819 | len--; |
| 5820 | consumed++; |
| 5821 | |
| 5822 | chr = *cc; |
| 5823 | add_prefix_char(*cc, chars, len == 0); |
| 5824 | |
| 5825 | if (caseless) |
| 5826 | add_prefix_char(*oc, chars, len == 0); |
| 5827 | |
| 5828 | if (--max_chars == 0) |
| 5829 | return consumed; |
| 5830 | chars++; |
| 5831 | cc++; |
| 5832 | oc++; |
| 5833 | } |
| 5834 | while (len > 0); |
| 5835 | |
| 5836 | if (--repeat == 0) |
| 5837 | break; |
| 5838 | |
| 5839 | len = len_save; |
| 5840 | cc = cc_save; |
| 5841 | } |
| 5842 | |
| 5843 | repeat = 1; |
| 5844 | if (last) |
| 5845 | return consumed; |
| 5846 | } |
| 5847 | } |
| 5848 | |
| 5849 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 5850 | static void jumpto_if_not_utf_char_start(struct sljit_compiler *compiler, sljit_s32 reg, struct sljit_label *label) |
| 5851 | { |
| 5852 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 5853 | OP2(SLJIT_AND, reg, 0, reg, 0, SLJIT_IMM, 0xc0); |
| 5854 | CMPTO(SLJIT_EQUAL, reg, 0, SLJIT_IMM, 0x80, label); |
| 5855 | #elif PCRE2_CODE_UNIT_WIDTH == 16 |
| 5856 | OP2(SLJIT_AND, reg, 0, reg, 0, SLJIT_IMM, 0xfc00); |
| 5857 | CMPTO(SLJIT_EQUAL, reg, 0, SLJIT_IMM, 0xdc00, label); |
| 5858 | #else |
| 5859 | #error "Unknown code width" |
| 5860 | #endif |
| 5861 | } |
| 5862 | #endif |
| 5863 | |
| 5864 | #include "pcre2_jit_simd_inc.h" |
| 5865 | |
| 5866 | #ifdef JIT_HAS_FAST_FORWARD_CHAR_PAIR_SIMD |
| 5867 | |
| 5868 | static BOOL check_fast_forward_char_pair_simd(compiler_common *common, fast_forward_char_data *chars, int max) |
| 5869 | { |
| 5870 | sljit_s32 i, j, max_i = 0, max_j = 0; |
| 5871 | sljit_u32 max_pri = 0; |
| 5872 | PCRE2_UCHAR a1, a2, a_pri, b1, b2, b_pri; |
| 5873 | |
| 5874 | for (i = max - 1; i >= 1; i--) |
| 5875 | { |
| 5876 | if (chars[i].last_count > 2) |
| 5877 | { |
| 5878 | a1 = chars[i].chars[0]; |
| 5879 | a2 = chars[i].chars[1]; |
| 5880 | a_pri = chars[i].last_count; |
| 5881 | |
| 5882 | j = i - max_fast_forward_char_pair_offset(); |
| 5883 | if (j < 0) |
| 5884 | j = 0; |
| 5885 | |
| 5886 | while (j < i) |
| 5887 | { |
| 5888 | b_pri = chars[j].last_count; |
| 5889 | if (b_pri > 2 && a_pri + b_pri >= max_pri) |
| 5890 | { |
| 5891 | b1 = chars[j].chars[0]; |
| 5892 | b2 = chars[j].chars[1]; |
| 5893 | |
| 5894 | if (a1 != b1 && a1 != b2 && a2 != b1 && a2 != b2) |
| 5895 | { |
| 5896 | max_pri = a_pri + b_pri; |
| 5897 | max_i = i; |
| 5898 | max_j = j; |
| 5899 | } |
| 5900 | } |
| 5901 | j++; |
| 5902 | } |
| 5903 | } |
| 5904 | } |
| 5905 | |
| 5906 | if (max_pri == 0) |
| 5907 | return FALSE; |
| 5908 | |
| 5909 | fast_forward_char_pair_simd(common, max_i, chars[max_i].chars[0], chars[max_i].chars[1], max_j, chars[max_j].chars[0], chars[max_j].chars[1]); |
| 5910 | return TRUE; |
| 5911 | } |
| 5912 | |
| 5913 | #endif /* JIT_HAS_FAST_FORWARD_CHAR_PAIR_SIMD */ |
| 5914 | |
| 5915 | static void fast_forward_first_char2(compiler_common *common, PCRE2_UCHAR char1, PCRE2_UCHAR char2, sljit_s32 offset) |
| 5916 | { |
| 5917 | DEFINE_COMPILER; |
| 5918 | struct sljit_label *start; |
| 5919 | struct sljit_jump *match; |
| 5920 | struct sljit_jump *partial_quit; |
| 5921 | PCRE2_UCHAR mask; |
| 5922 | BOOL has_match_end = (common->match_end_ptr != 0); |
| 5923 | |
| 5924 | SLJIT_ASSERT(common->mode == PCRE2_JIT_COMPLETE || offset == 0); |
| 5925 | |
| 5926 | if (has_match_end) |
| 5927 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->match_end_ptr); |
| 5928 | |
| 5929 | if (offset > 0) |
| 5930 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(offset)); |
| 5931 | |
| 5932 | if (has_match_end) |
| 5933 | { |
| 5934 | OP1(SLJIT_MOV, TMP3, 0, STR_END, 0); |
| 5935 | |
| 5936 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, IN_UCHARS(offset + 1)); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 5937 | OP2U(SLJIT_SUB | SLJIT_SET_GREATER, STR_END, 0, TMP1, 0); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 5938 | CMOV(SLJIT_GREATER, STR_END, TMP1, 0); |
| 5939 | } |
| 5940 | |
| 5941 | #ifdef JIT_HAS_FAST_FORWARD_CHAR_SIMD |
| 5942 | |
| 5943 | if (JIT_HAS_FAST_FORWARD_CHAR_SIMD) |
| 5944 | { |
| 5945 | fast_forward_char_simd(common, char1, char2, offset); |
| 5946 | |
| 5947 | if (offset > 0) |
| 5948 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(offset)); |
| 5949 | |
| 5950 | if (has_match_end) |
| 5951 | OP1(SLJIT_MOV, STR_END, 0, TMP3, 0); |
| 5952 | return; |
| 5953 | } |
| 5954 | |
| 5955 | #endif |
| 5956 | |
| 5957 | start = LABEL(); |
| 5958 | |
| 5959 | partial_quit = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0); |
| 5960 | if (common->mode == PCRE2_JIT_COMPLETE) |
| 5961 | add_jump(compiler, &common->failed_match, partial_quit); |
| 5962 | |
| 5963 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0); |
| 5964 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 5965 | |
| 5966 | if (char1 == char2) |
| 5967 | CMPTO(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, char1, start); |
| 5968 | else |
| 5969 | { |
| 5970 | mask = char1 ^ char2; |
| 5971 | if (is_powerof2(mask)) |
| 5972 | { |
| 5973 | OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, mask); |
| 5974 | CMPTO(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, char1 | mask, start); |
| 5975 | } |
| 5976 | else |
| 5977 | { |
| 5978 | match = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, char1); |
| 5979 | CMPTO(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, char2, start); |
| 5980 | JUMPHERE(match); |
| 5981 | } |
| 5982 | } |
| 5983 | |
| 5984 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 5985 | if (common->utf && offset > 0) |
| 5986 | { |
| 5987 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-(offset + 1))); |
| 5988 | jumpto_if_not_utf_char_start(compiler, TMP1, start); |
| 5989 | } |
| 5990 | #endif |
| 5991 | |
| 5992 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(offset + 1)); |
| 5993 | |
| 5994 | if (common->mode != PCRE2_JIT_COMPLETE) |
| 5995 | JUMPHERE(partial_quit); |
| 5996 | |
| 5997 | if (has_match_end) |
| 5998 | OP1(SLJIT_MOV, STR_END, 0, TMP3, 0); |
| 5999 | } |
| 6000 | |
| 6001 | static SLJIT_INLINE BOOL fast_forward_first_n_chars(compiler_common *common) |
| 6002 | { |
| 6003 | DEFINE_COMPILER; |
| 6004 | struct sljit_label *start; |
| 6005 | struct sljit_jump *match; |
| 6006 | fast_forward_char_data chars[MAX_N_CHARS]; |
| 6007 | sljit_s32 offset; |
| 6008 | PCRE2_UCHAR mask; |
| 6009 | PCRE2_UCHAR *char_set, *char_set_end; |
| 6010 | int i, max, from; |
| 6011 | int range_right = -1, range_len; |
| 6012 | sljit_u8 *update_table = NULL; |
| 6013 | BOOL in_range; |
| 6014 | sljit_u32 rec_count; |
| 6015 | |
| 6016 | for (i = 0; i < MAX_N_CHARS; i++) |
| 6017 | { |
| 6018 | chars[i].count = 0; |
| 6019 | chars[i].last_count = 0; |
| 6020 | } |
| 6021 | |
| 6022 | rec_count = 10000; |
| 6023 | max = scan_prefix(common, common->start, chars, MAX_N_CHARS, &rec_count); |
| 6024 | |
| 6025 | if (max < 1) |
| 6026 | return FALSE; |
| 6027 | |
| 6028 | /* Convert last_count to priority. */ |
| 6029 | for (i = 0; i < max; i++) |
| 6030 | { |
| 6031 | SLJIT_ASSERT(chars[i].count > 0 && chars[i].last_count <= chars[i].count); |
| 6032 | |
| 6033 | if (chars[i].count == 1) |
| 6034 | { |
| 6035 | chars[i].last_count = (chars[i].last_count == 1) ? 7 : 5; |
| 6036 | /* Simplifies algorithms later. */ |
| 6037 | chars[i].chars[1] = chars[i].chars[0]; |
| 6038 | } |
| 6039 | else if (chars[i].count == 2) |
| 6040 | { |
| 6041 | SLJIT_ASSERT(chars[i].chars[0] != chars[i].chars[1]); |
| 6042 | |
| 6043 | if (is_powerof2(chars[i].chars[0] ^ chars[i].chars[1])) |
| 6044 | chars[i].last_count = (chars[i].last_count == 2) ? 6 : 4; |
| 6045 | else |
| 6046 | chars[i].last_count = (chars[i].last_count == 2) ? 3 : 2; |
| 6047 | } |
| 6048 | else |
| 6049 | chars[i].last_count = (chars[i].count == 255) ? 0 : 1; |
| 6050 | } |
| 6051 | |
| 6052 | #ifdef JIT_HAS_FAST_FORWARD_CHAR_PAIR_SIMD |
| 6053 | if (JIT_HAS_FAST_FORWARD_CHAR_PAIR_SIMD && check_fast_forward_char_pair_simd(common, chars, max)) |
| 6054 | return TRUE; |
| 6055 | #endif |
| 6056 | |
| 6057 | in_range = FALSE; |
| 6058 | /* Prevent compiler "uninitialized" warning */ |
| 6059 | from = 0; |
| 6060 | range_len = 4 /* minimum length */ - 1; |
| 6061 | for (i = 0; i <= max; i++) |
| 6062 | { |
| 6063 | if (in_range && (i - from) > range_len && (chars[i - 1].count < 255)) |
| 6064 | { |
| 6065 | range_len = i - from; |
| 6066 | range_right = i - 1; |
| 6067 | } |
| 6068 | |
| 6069 | if (i < max && chars[i].count < 255) |
| 6070 | { |
| 6071 | SLJIT_ASSERT(chars[i].count > 0); |
| 6072 | if (!in_range) |
| 6073 | { |
| 6074 | in_range = TRUE; |
| 6075 | from = i; |
| 6076 | } |
| 6077 | } |
| 6078 | else |
| 6079 | in_range = FALSE; |
| 6080 | } |
| 6081 | |
| 6082 | if (range_right >= 0) |
| 6083 | { |
| 6084 | update_table = (sljit_u8 *)allocate_read_only_data(common, 256); |
| 6085 | if (update_table == NULL) |
| 6086 | return TRUE; |
| 6087 | memset(update_table, IN_UCHARS(range_len), 256); |
| 6088 | |
| 6089 | for (i = 0; i < range_len; i++) |
| 6090 | { |
| 6091 | SLJIT_ASSERT(chars[range_right - i].count > 0 && chars[range_right - i].count < 255); |
| 6092 | |
| 6093 | char_set = chars[range_right - i].chars; |
| 6094 | char_set_end = char_set + chars[range_right - i].count; |
| 6095 | do |
| 6096 | { |
| 6097 | if (update_table[(*char_set) & 0xff] > IN_UCHARS(i)) |
| 6098 | update_table[(*char_set) & 0xff] = IN_UCHARS(i); |
| 6099 | char_set++; |
| 6100 | } |
| 6101 | while (char_set < char_set_end); |
| 6102 | } |
| 6103 | } |
| 6104 | |
| 6105 | offset = -1; |
| 6106 | /* Scan forward. */ |
| 6107 | for (i = 0; i < max; i++) |
| 6108 | { |
| 6109 | if (range_right == i) |
| 6110 | continue; |
| 6111 | |
| 6112 | if (offset == -1) |
| 6113 | { |
| 6114 | if (chars[i].last_count >= 2) |
| 6115 | offset = i; |
| 6116 | } |
| 6117 | else if (chars[offset].last_count < chars[i].last_count) |
| 6118 | offset = i; |
| 6119 | } |
| 6120 | |
| 6121 | SLJIT_ASSERT(offset == -1 || (chars[offset].count >= 1 && chars[offset].count <= 2)); |
| 6122 | |
| 6123 | if (range_right < 0) |
| 6124 | { |
| 6125 | if (offset < 0) |
| 6126 | return FALSE; |
| 6127 | /* Works regardless the value is 1 or 2. */ |
| 6128 | fast_forward_first_char2(common, chars[offset].chars[0], chars[offset].chars[1], offset); |
| 6129 | return TRUE; |
| 6130 | } |
| 6131 | |
| 6132 | SLJIT_ASSERT(range_right != offset); |
| 6133 | |
| 6134 | if (common->match_end_ptr != 0) |
| 6135 | { |
| 6136 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->match_end_ptr); |
| 6137 | OP1(SLJIT_MOV, TMP3, 0, STR_END, 0); |
| 6138 | OP2(SLJIT_SUB | SLJIT_SET_LESS, STR_END, 0, STR_END, 0, SLJIT_IMM, IN_UCHARS(max)); |
| 6139 | add_jump(compiler, &common->failed_match, JUMP(SLJIT_LESS)); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 6140 | OP2U(SLJIT_SUB | SLJIT_SET_GREATER, STR_END, 0, TMP1, 0); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 6141 | CMOV(SLJIT_GREATER, STR_END, TMP1, 0); |
| 6142 | } |
| 6143 | else |
| 6144 | { |
| 6145 | OP2(SLJIT_SUB | SLJIT_SET_LESS, STR_END, 0, STR_END, 0, SLJIT_IMM, IN_UCHARS(max)); |
| 6146 | add_jump(compiler, &common->failed_match, JUMP(SLJIT_LESS)); |
| 6147 | } |
| 6148 | |
| 6149 | SLJIT_ASSERT(range_right >= 0); |
| 6150 | |
| 6151 | if (!HAS_VIRTUAL_REGISTERS) |
| 6152 | OP1(SLJIT_MOV, RETURN_ADDR, 0, SLJIT_IMM, (sljit_sw)update_table); |
| 6153 | |
| 6154 | start = LABEL(); |
| 6155 | add_jump(compiler, &common->failed_match, CMP(SLJIT_GREATER, STR_PTR, 0, STR_END, 0)); |
| 6156 | |
| 6157 | #if PCRE2_CODE_UNIT_WIDTH == 8 || (defined SLJIT_LITTLE_ENDIAN && SLJIT_LITTLE_ENDIAN) |
| 6158 | OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(range_right)); |
| 6159 | #else |
| 6160 | OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(range_right + 1) - 1); |
| 6161 | #endif |
| 6162 | |
| 6163 | if (!HAS_VIRTUAL_REGISTERS) |
| 6164 | OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM2(RETURN_ADDR, TMP1), 0); |
| 6165 | else |
| 6166 | OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)update_table); |
| 6167 | |
| 6168 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0); |
| 6169 | CMPTO(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, 0, start); |
| 6170 | |
| 6171 | if (offset >= 0) |
| 6172 | { |
| 6173 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(offset)); |
| 6174 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 6175 | |
| 6176 | if (chars[offset].count == 1) |
| 6177 | CMPTO(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, chars[offset].chars[0], start); |
| 6178 | else |
| 6179 | { |
| 6180 | mask = chars[offset].chars[0] ^ chars[offset].chars[1]; |
| 6181 | if (is_powerof2(mask)) |
| 6182 | { |
| 6183 | OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, mask); |
| 6184 | CMPTO(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, chars[offset].chars[0] | mask, start); |
| 6185 | } |
| 6186 | else |
| 6187 | { |
| 6188 | match = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, chars[offset].chars[0]); |
| 6189 | CMPTO(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, chars[offset].chars[1], start); |
| 6190 | JUMPHERE(match); |
| 6191 | } |
| 6192 | } |
| 6193 | } |
| 6194 | |
| 6195 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 6196 | if (common->utf && offset != 0) |
| 6197 | { |
| 6198 | if (offset < 0) |
| 6199 | { |
| 6200 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0); |
| 6201 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 6202 | } |
| 6203 | else |
| 6204 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-1)); |
| 6205 | |
| 6206 | jumpto_if_not_utf_char_start(compiler, TMP1, start); |
| 6207 | |
| 6208 | if (offset < 0) |
| 6209 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 6210 | } |
| 6211 | #endif |
| 6212 | |
| 6213 | if (offset >= 0) |
| 6214 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 6215 | |
| 6216 | if (common->match_end_ptr != 0) |
| 6217 | OP1(SLJIT_MOV, STR_END, 0, TMP3, 0); |
| 6218 | else |
| 6219 | OP2(SLJIT_ADD, STR_END, 0, STR_END, 0, SLJIT_IMM, IN_UCHARS(max)); |
| 6220 | return TRUE; |
| 6221 | } |
| 6222 | |
| 6223 | static SLJIT_INLINE void fast_forward_first_char(compiler_common *common) |
| 6224 | { |
| 6225 | PCRE2_UCHAR first_char = (PCRE2_UCHAR)(common->re->first_codeunit); |
| 6226 | PCRE2_UCHAR oc; |
| 6227 | |
| 6228 | oc = first_char; |
| 6229 | if ((common->re->flags & PCRE2_FIRSTCASELESS) != 0) |
| 6230 | { |
| 6231 | oc = TABLE_GET(first_char, common->fcc, first_char); |
| 6232 | #if defined SUPPORT_UNICODE |
| 6233 | if (first_char > 127 && (common->utf || common->ucp)) |
| 6234 | oc = UCD_OTHERCASE(first_char); |
| 6235 | #endif |
| 6236 | } |
| 6237 | |
| 6238 | fast_forward_first_char2(common, first_char, oc, 0); |
| 6239 | } |
| 6240 | |
| 6241 | static SLJIT_INLINE void fast_forward_newline(compiler_common *common) |
| 6242 | { |
| 6243 | DEFINE_COMPILER; |
| 6244 | struct sljit_label *loop; |
| 6245 | struct sljit_jump *lastchar = NULL; |
| 6246 | struct sljit_jump *firstchar; |
| 6247 | struct sljit_jump *quit = NULL; |
| 6248 | struct sljit_jump *foundcr = NULL; |
| 6249 | struct sljit_jump *notfoundnl; |
| 6250 | jump_list *newline = NULL; |
| 6251 | |
| 6252 | if (common->match_end_ptr != 0) |
| 6253 | { |
| 6254 | OP1(SLJIT_MOV, TMP3, 0, STR_END, 0); |
| 6255 | OP1(SLJIT_MOV, STR_END, 0, SLJIT_MEM1(SLJIT_SP), common->match_end_ptr); |
| 6256 | } |
| 6257 | |
| 6258 | if (common->nltype == NLTYPE_FIXED && common->newline > 255) |
| 6259 | { |
| 6260 | #ifdef JIT_HAS_FAST_FORWARD_CHAR_PAIR_SIMD |
| 6261 | if (JIT_HAS_FAST_FORWARD_CHAR_PAIR_SIMD && common->mode == PCRE2_JIT_COMPLETE) |
| 6262 | { |
| 6263 | if (HAS_VIRTUAL_REGISTERS) |
| 6264 | { |
| 6265 | OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0); |
| 6266 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, str)); |
| 6267 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, begin)); |
| 6268 | } |
| 6269 | else |
| 6270 | { |
| 6271 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(ARGUMENTS), SLJIT_OFFSETOF(jit_arguments, str)); |
| 6272 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(ARGUMENTS), SLJIT_OFFSETOF(jit_arguments, begin)); |
| 6273 | } |
| 6274 | firstchar = CMP(SLJIT_LESS_EQUAL, STR_PTR, 0, TMP2, 0); |
| 6275 | |
| 6276 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 6277 | OP2U(SLJIT_SUB | SLJIT_SET_Z, STR_PTR, 0, TMP1, 0); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 6278 | OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_NOT_EQUAL); |
| 6279 | #if PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32 |
| 6280 | OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, UCHAR_SHIFT); |
| 6281 | #endif |
| 6282 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP1, 0); |
| 6283 | |
| 6284 | fast_forward_char_pair_simd(common, 1, common->newline & 0xff, common->newline & 0xff, 0, (common->newline >> 8) & 0xff, (common->newline >> 8) & 0xff); |
| 6285 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2)); |
| 6286 | } |
| 6287 | else |
| 6288 | #endif /* JIT_HAS_FAST_FORWARD_CHAR_PAIR_SIMD */ |
| 6289 | { |
| 6290 | lastchar = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0); |
| 6291 | if (HAS_VIRTUAL_REGISTERS) |
| 6292 | { |
| 6293 | OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0); |
| 6294 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, str)); |
| 6295 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, begin)); |
| 6296 | } |
| 6297 | else |
| 6298 | { |
| 6299 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(ARGUMENTS), SLJIT_OFFSETOF(jit_arguments, str)); |
| 6300 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(ARGUMENTS), SLJIT_OFFSETOF(jit_arguments, begin)); |
| 6301 | } |
| 6302 | firstchar = CMP(SLJIT_LESS_EQUAL, STR_PTR, 0, TMP2, 0); |
| 6303 | |
| 6304 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, IN_UCHARS(2)); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 6305 | OP2U(SLJIT_SUB | SLJIT_SET_GREATER_EQUAL, STR_PTR, 0, TMP1, 0); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 6306 | OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_GREATER_EQUAL); |
| 6307 | #if PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32 |
| 6308 | OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, UCHAR_SHIFT); |
| 6309 | #endif |
| 6310 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP2, 0); |
| 6311 | |
| 6312 | loop = LABEL(); |
| 6313 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 6314 | quit = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0); |
| 6315 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-2)); |
| 6316 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-1)); |
| 6317 | CMPTO(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff, loop); |
| 6318 | CMPTO(SLJIT_NOT_EQUAL, TMP2, 0, SLJIT_IMM, common->newline & 0xff, loop); |
| 6319 | |
| 6320 | JUMPHERE(quit); |
| 6321 | JUMPHERE(lastchar); |
| 6322 | } |
| 6323 | |
| 6324 | JUMPHERE(firstchar); |
| 6325 | |
| 6326 | if (common->match_end_ptr != 0) |
| 6327 | OP1(SLJIT_MOV, STR_END, 0, TMP3, 0); |
| 6328 | return; |
| 6329 | } |
| 6330 | |
| 6331 | if (HAS_VIRTUAL_REGISTERS) |
| 6332 | { |
| 6333 | OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0); |
| 6334 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, str)); |
| 6335 | } |
| 6336 | else |
| 6337 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(ARGUMENTS), SLJIT_OFFSETOF(jit_arguments, str)); |
| 6338 | |
| 6339 | /* Example: match /^/ to \r\n from offset 1. */ |
| 6340 | firstchar = CMP(SLJIT_LESS_EQUAL, STR_PTR, 0, TMP2, 0); |
| 6341 | |
| 6342 | if (common->nltype == NLTYPE_ANY) |
| 6343 | move_back(common, NULL, FALSE); |
| 6344 | else |
| 6345 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 6346 | |
| 6347 | loop = LABEL(); |
| 6348 | common->ff_newline_shortcut = loop; |
| 6349 | |
| 6350 | #ifdef JIT_HAS_FAST_FORWARD_CHAR_SIMD |
| 6351 | if (JIT_HAS_FAST_FORWARD_CHAR_SIMD && (common->nltype == NLTYPE_FIXED || common->nltype == NLTYPE_ANYCRLF)) |
| 6352 | { |
| 6353 | if (common->nltype == NLTYPE_ANYCRLF) |
| 6354 | { |
| 6355 | fast_forward_char_simd(common, CHAR_CR, CHAR_LF, 0); |
| 6356 | if (common->mode != PCRE2_JIT_COMPLETE) |
| 6357 | lastchar = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0); |
| 6358 | |
| 6359 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0); |
| 6360 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 6361 | quit = CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_CR); |
| 6362 | } |
| 6363 | else |
| 6364 | { |
| 6365 | fast_forward_char_simd(common, common->newline, common->newline, 0); |
| 6366 | |
| 6367 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 6368 | if (common->mode != PCRE2_JIT_COMPLETE) |
| 6369 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 6370 | OP2U(SLJIT_SUB | SLJIT_SET_GREATER, STR_PTR, 0, STR_END, 0); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 6371 | CMOV(SLJIT_GREATER, STR_PTR, STR_END, 0); |
| 6372 | } |
| 6373 | } |
| 6374 | } |
| 6375 | else |
| 6376 | #endif /* JIT_HAS_FAST_FORWARD_CHAR_SIMD */ |
| 6377 | { |
| 6378 | read_char(common, common->nlmin, common->nlmax, NULL, READ_CHAR_NEWLINE); |
| 6379 | lastchar = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0); |
| 6380 | if (common->nltype == NLTYPE_ANY || common->nltype == NLTYPE_ANYCRLF) |
| 6381 | foundcr = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_CR); |
| 6382 | check_newlinechar(common, common->nltype, &newline, FALSE); |
| 6383 | set_jumps(newline, loop); |
| 6384 | } |
| 6385 | |
| 6386 | if (common->nltype == NLTYPE_ANY || common->nltype == NLTYPE_ANYCRLF) |
| 6387 | { |
| 6388 | if (quit == NULL) |
| 6389 | { |
| 6390 | quit = JUMP(SLJIT_JUMP); |
| 6391 | JUMPHERE(foundcr); |
| 6392 | } |
| 6393 | |
| 6394 | notfoundnl = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0); |
| 6395 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 6396 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, CHAR_NL); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 6397 | OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_EQUAL); |
| 6398 | #if PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32 |
| 6399 | OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, UCHAR_SHIFT); |
| 6400 | #endif |
| 6401 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0); |
| 6402 | JUMPHERE(notfoundnl); |
| 6403 | JUMPHERE(quit); |
| 6404 | } |
| 6405 | |
| 6406 | if (lastchar) |
| 6407 | JUMPHERE(lastchar); |
| 6408 | JUMPHERE(firstchar); |
| 6409 | |
| 6410 | if (common->match_end_ptr != 0) |
| 6411 | OP1(SLJIT_MOV, STR_END, 0, TMP3, 0); |
| 6412 | } |
| 6413 | |
| 6414 | static BOOL optimize_class(compiler_common *common, const sljit_u8 *bits, BOOL nclass, BOOL invert, jump_list **backtracks); |
| 6415 | |
| 6416 | static SLJIT_INLINE void fast_forward_start_bits(compiler_common *common) |
| 6417 | { |
| 6418 | DEFINE_COMPILER; |
| 6419 | const sljit_u8 *start_bits = common->re->start_bitmap; |
| 6420 | struct sljit_label *start; |
| 6421 | struct sljit_jump *partial_quit; |
| 6422 | #if PCRE2_CODE_UNIT_WIDTH != 8 |
| 6423 | struct sljit_jump *found = NULL; |
| 6424 | #endif |
| 6425 | jump_list *matches = NULL; |
| 6426 | |
| 6427 | if (common->match_end_ptr != 0) |
| 6428 | { |
| 6429 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->match_end_ptr); |
| 6430 | OP1(SLJIT_MOV, RETURN_ADDR, 0, STR_END, 0); |
| 6431 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, IN_UCHARS(1)); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 6432 | OP2U(SLJIT_SUB | SLJIT_SET_GREATER, STR_END, 0, TMP1, 0); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 6433 | CMOV(SLJIT_GREATER, STR_END, TMP1, 0); |
| 6434 | } |
| 6435 | |
| 6436 | start = LABEL(); |
| 6437 | |
| 6438 | partial_quit = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0); |
| 6439 | if (common->mode == PCRE2_JIT_COMPLETE) |
| 6440 | add_jump(compiler, &common->failed_match, partial_quit); |
| 6441 | |
| 6442 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0); |
| 6443 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 6444 | |
| 6445 | if (!optimize_class(common, start_bits, (start_bits[31] & 0x80) != 0, FALSE, &matches)) |
| 6446 | { |
| 6447 | #if PCRE2_CODE_UNIT_WIDTH != 8 |
| 6448 | if ((start_bits[31] & 0x80) != 0) |
| 6449 | found = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 255); |
| 6450 | else |
| 6451 | CMPTO(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 255, start); |
| 6452 | #elif defined SUPPORT_UNICODE |
| 6453 | if (common->utf && is_char7_bitset(start_bits, FALSE)) |
| 6454 | CMPTO(SLJIT_GREATER, TMP1, 0, SLJIT_IMM, 127, start); |
| 6455 | #endif |
| 6456 | OP2(SLJIT_AND, TMP2, 0, TMP1, 0, SLJIT_IMM, 0x7); |
| 6457 | OP2(SLJIT_LSHR, TMP1, 0, TMP1, 0, SLJIT_IMM, 3); |
| 6458 | OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)start_bits); |
| 6459 | if (!HAS_VIRTUAL_REGISTERS) |
| 6460 | { |
| 6461 | OP2(SLJIT_SHL, TMP3, 0, SLJIT_IMM, 1, TMP2, 0); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 6462 | OP2U(SLJIT_AND | SLJIT_SET_Z, TMP1, 0, TMP3, 0); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 6463 | } |
| 6464 | else |
| 6465 | { |
| 6466 | OP2(SLJIT_SHL, TMP2, 0, SLJIT_IMM, 1, TMP2, 0); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 6467 | OP2U(SLJIT_AND | SLJIT_SET_Z, TMP1, 0, TMP2, 0); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 6468 | } |
| 6469 | JUMPTO(SLJIT_ZERO, start); |
| 6470 | } |
| 6471 | else |
| 6472 | set_jumps(matches, start); |
| 6473 | |
| 6474 | #if PCRE2_CODE_UNIT_WIDTH != 8 |
| 6475 | if (found != NULL) |
| 6476 | JUMPHERE(found); |
| 6477 | #endif |
| 6478 | |
| 6479 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 6480 | |
| 6481 | if (common->mode != PCRE2_JIT_COMPLETE) |
| 6482 | JUMPHERE(partial_quit); |
| 6483 | |
| 6484 | if (common->match_end_ptr != 0) |
| 6485 | OP1(SLJIT_MOV, STR_END, 0, RETURN_ADDR, 0); |
| 6486 | } |
| 6487 | |
| 6488 | static SLJIT_INLINE jump_list *search_requested_char(compiler_common *common, PCRE2_UCHAR req_char, BOOL caseless, BOOL has_firstchar) |
| 6489 | { |
| 6490 | DEFINE_COMPILER; |
| 6491 | struct sljit_label *loop; |
| 6492 | struct sljit_jump *toolong; |
| 6493 | struct sljit_jump *already_found; |
| 6494 | struct sljit_jump *found; |
| 6495 | struct sljit_jump *found_oc = NULL; |
| 6496 | jump_list *not_found = NULL; |
| 6497 | sljit_u32 oc, bit; |
| 6498 | |
| 6499 | SLJIT_ASSERT(common->req_char_ptr != 0); |
| 6500 | OP2(SLJIT_ADD, TMP2, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(REQ_CU_MAX) * 100); |
| 6501 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->req_char_ptr); |
| 6502 | toolong = CMP(SLJIT_LESS, TMP2, 0, STR_END, 0); |
| 6503 | already_found = CMP(SLJIT_LESS, STR_PTR, 0, TMP1, 0); |
| 6504 | |
| 6505 | if (has_firstchar) |
| 6506 | OP2(SLJIT_ADD, TMP1, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 6507 | else |
| 6508 | OP1(SLJIT_MOV, TMP1, 0, STR_PTR, 0); |
| 6509 | |
| 6510 | oc = req_char; |
| 6511 | if (caseless) |
| 6512 | { |
| 6513 | oc = TABLE_GET(req_char, common->fcc, req_char); |
| 6514 | #if defined SUPPORT_UNICODE |
| 6515 | if (req_char > 127 && (common->utf || common->ucp)) |
| 6516 | oc = UCD_OTHERCASE(req_char); |
| 6517 | #endif |
| 6518 | } |
| 6519 | |
| 6520 | #ifdef JIT_HAS_FAST_REQUESTED_CHAR_SIMD |
| 6521 | if (JIT_HAS_FAST_REQUESTED_CHAR_SIMD) |
| 6522 | { |
| 6523 | not_found = fast_requested_char_simd(common, req_char, oc); |
| 6524 | } |
| 6525 | else |
| 6526 | #endif |
| 6527 | { |
| 6528 | loop = LABEL(); |
| 6529 | add_jump(compiler, ¬_found, CMP(SLJIT_GREATER_EQUAL, TMP1, 0, STR_END, 0)); |
| 6530 | |
| 6531 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(TMP1), 0); |
| 6532 | |
| 6533 | if (req_char == oc) |
| 6534 | found = CMP(SLJIT_EQUAL, TMP2, 0, SLJIT_IMM, req_char); |
| 6535 | else |
| 6536 | { |
| 6537 | bit = req_char ^ oc; |
| 6538 | if (is_powerof2(bit)) |
| 6539 | { |
| 6540 | OP2(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_IMM, bit); |
| 6541 | found = CMP(SLJIT_EQUAL, TMP2, 0, SLJIT_IMM, req_char | bit); |
| 6542 | } |
| 6543 | else |
| 6544 | { |
| 6545 | found = CMP(SLJIT_EQUAL, TMP2, 0, SLJIT_IMM, req_char); |
| 6546 | found_oc = CMP(SLJIT_EQUAL, TMP2, 0, SLJIT_IMM, oc); |
| 6547 | } |
| 6548 | } |
| 6549 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 6550 | JUMPTO(SLJIT_JUMP, loop); |
| 6551 | |
| 6552 | JUMPHERE(found); |
| 6553 | if (found_oc) |
| 6554 | JUMPHERE(found_oc); |
| 6555 | } |
| 6556 | |
| 6557 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->req_char_ptr, TMP1, 0); |
| 6558 | |
| 6559 | JUMPHERE(already_found); |
| 6560 | JUMPHERE(toolong); |
| 6561 | return not_found; |
| 6562 | } |
| 6563 | |
| 6564 | static void do_revertframes(compiler_common *common) |
| 6565 | { |
| 6566 | DEFINE_COMPILER; |
| 6567 | struct sljit_jump *jump; |
| 6568 | struct sljit_label *mainloop; |
| 6569 | |
| 6570 | sljit_emit_fast_enter(compiler, RETURN_ADDR, 0); |
| 6571 | GET_LOCAL_BASE(TMP1, 0, 0); |
| 6572 | |
| 6573 | /* Drop frames until we reach STACK_TOP. */ |
| 6574 | mainloop = LABEL(); |
| 6575 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), -sizeof(sljit_sw)); |
| 6576 | jump = CMP(SLJIT_SIG_LESS_EQUAL, TMP2, 0, SLJIT_IMM, 0); |
| 6577 | |
| 6578 | OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, TMP1, 0); |
| 6579 | if (HAS_VIRTUAL_REGISTERS) |
| 6580 | { |
| 6581 | OP1(SLJIT_MOV, SLJIT_MEM1(TMP2), 0, SLJIT_MEM1(STACK_TOP), -(2 * sizeof(sljit_sw))); |
| 6582 | OP1(SLJIT_MOV, SLJIT_MEM1(TMP2), sizeof(sljit_sw), SLJIT_MEM1(STACK_TOP), -(3 * sizeof(sljit_sw))); |
| 6583 | OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, 3 * sizeof(sljit_sw)); |
| 6584 | } |
| 6585 | else |
| 6586 | { |
| 6587 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), -(2 * sizeof(sljit_sw))); |
| 6588 | OP1(SLJIT_MOV, TMP3, 0, SLJIT_MEM1(STACK_TOP), -(3 * sizeof(sljit_sw))); |
| 6589 | OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, 3 * sizeof(sljit_sw)); |
| 6590 | OP1(SLJIT_MOV, SLJIT_MEM1(TMP2), 0, TMP1, 0); |
| 6591 | GET_LOCAL_BASE(TMP1, 0, 0); |
| 6592 | OP1(SLJIT_MOV, SLJIT_MEM1(TMP2), sizeof(sljit_sw), TMP3, 0); |
| 6593 | } |
| 6594 | JUMPTO(SLJIT_JUMP, mainloop); |
| 6595 | |
| 6596 | JUMPHERE(jump); |
| 6597 | jump = CMP(SLJIT_NOT_ZERO /* SIG_LESS */, TMP2, 0, SLJIT_IMM, 0); |
| 6598 | /* End of reverting values. */ |
| 6599 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 6600 | |
| 6601 | JUMPHERE(jump); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 6602 | OP2(SLJIT_SUB, TMP2, 0, SLJIT_IMM, 0, TMP2, 0); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 6603 | OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, TMP1, 0); |
| 6604 | if (HAS_VIRTUAL_REGISTERS) |
| 6605 | { |
| 6606 | OP1(SLJIT_MOV, SLJIT_MEM1(TMP2), 0, SLJIT_MEM1(STACK_TOP), -(2 * sizeof(sljit_sw))); |
| 6607 | OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, 2 * sizeof(sljit_sw)); |
| 6608 | } |
| 6609 | else |
| 6610 | { |
| 6611 | OP1(SLJIT_MOV, TMP3, 0, SLJIT_MEM1(STACK_TOP), -(2 * sizeof(sljit_sw))); |
| 6612 | OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, 2 * sizeof(sljit_sw)); |
| 6613 | OP1(SLJIT_MOV, SLJIT_MEM1(TMP2), 0, TMP3, 0); |
| 6614 | } |
| 6615 | JUMPTO(SLJIT_JUMP, mainloop); |
| 6616 | } |
| 6617 | |
| 6618 | static void check_wordboundary(compiler_common *common) |
| 6619 | { |
| 6620 | DEFINE_COMPILER; |
| 6621 | struct sljit_jump *skipread; |
| 6622 | jump_list *skipread_list = NULL; |
| 6623 | #ifdef SUPPORT_UNICODE |
| 6624 | struct sljit_label *valid_utf; |
| 6625 | jump_list *invalid_utf1 = NULL; |
| 6626 | #endif /* SUPPORT_UNICODE */ |
| 6627 | jump_list *invalid_utf2 = NULL; |
| 6628 | #if PCRE2_CODE_UNIT_WIDTH != 8 || defined SUPPORT_UNICODE |
| 6629 | struct sljit_jump *jump; |
| 6630 | #endif /* PCRE2_CODE_UNIT_WIDTH != 8 || SUPPORT_UNICODE */ |
| 6631 | |
| 6632 | SLJIT_COMPILE_ASSERT(ctype_word == 0x10, ctype_word_must_be_16); |
| 6633 | |
| 6634 | sljit_emit_fast_enter(compiler, SLJIT_MEM1(SLJIT_SP), LOCALS0); |
| 6635 | /* Get type of the previous char, and put it to TMP3. */ |
| 6636 | OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0); |
| 6637 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, begin)); |
| 6638 | OP1(SLJIT_MOV, TMP3, 0, SLJIT_IMM, 0); |
| 6639 | skipread = CMP(SLJIT_LESS_EQUAL, STR_PTR, 0, TMP2, 0); |
| 6640 | |
| 6641 | #ifdef SUPPORT_UNICODE |
| 6642 | if (common->invalid_utf) |
| 6643 | { |
| 6644 | peek_char_back(common, READ_CHAR_MAX, &invalid_utf1); |
| 6645 | |
| 6646 | if (common->mode != PCRE2_JIT_COMPLETE) |
| 6647 | { |
| 6648 | OP1(SLJIT_MOV, RETURN_ADDR, 0, TMP1, 0); |
| 6649 | OP1(SLJIT_MOV, TMP2, 0, STR_PTR, 0); |
| 6650 | move_back(common, NULL, TRUE); |
| 6651 | check_start_used_ptr(common); |
| 6652 | OP1(SLJIT_MOV, TMP1, 0, RETURN_ADDR, 0); |
| 6653 | OP1(SLJIT_MOV, STR_PTR, 0, TMP2, 0); |
| 6654 | } |
| 6655 | } |
| 6656 | else |
| 6657 | #endif /* SUPPORT_UNICODE */ |
| 6658 | { |
| 6659 | if (common->mode == PCRE2_JIT_COMPLETE) |
| 6660 | peek_char_back(common, READ_CHAR_MAX, NULL); |
| 6661 | else |
| 6662 | { |
| 6663 | move_back(common, NULL, TRUE); |
| 6664 | check_start_used_ptr(common); |
| 6665 | read_char(common, 0, READ_CHAR_MAX, NULL, READ_CHAR_UPDATE_STR_PTR); |
| 6666 | } |
| 6667 | } |
| 6668 | |
| 6669 | /* Testing char type. */ |
| 6670 | #ifdef SUPPORT_UNICODE |
| 6671 | if (common->ucp) |
| 6672 | { |
| 6673 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, 1); |
| 6674 | jump = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_UNDERSCORE); |
| 6675 | add_jump(compiler, &common->getucdtype, JUMP(SLJIT_FAST_CALL)); |
| 6676 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ucp_Ll); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 6677 | OP2U(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, TMP1, 0, SLJIT_IMM, ucp_Lu - ucp_Ll); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 6678 | OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_LESS_EQUAL); |
| 6679 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ucp_Nd - ucp_Ll); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 6680 | OP2U(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, TMP1, 0, SLJIT_IMM, ucp_No - ucp_Nd); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 6681 | OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_LESS_EQUAL); |
| 6682 | JUMPHERE(jump); |
| 6683 | OP1(SLJIT_MOV, TMP3, 0, TMP2, 0); |
| 6684 | } |
| 6685 | else |
| 6686 | #endif /* SUPPORT_UNICODE */ |
| 6687 | { |
| 6688 | #if PCRE2_CODE_UNIT_WIDTH != 8 |
| 6689 | jump = CMP(SLJIT_GREATER, TMP1, 0, SLJIT_IMM, 255); |
| 6690 | #elif defined SUPPORT_UNICODE |
| 6691 | /* Here TMP3 has already been zeroed. */ |
| 6692 | jump = NULL; |
| 6693 | if (common->utf) |
| 6694 | jump = CMP(SLJIT_GREATER, TMP1, 0, SLJIT_IMM, 255); |
| 6695 | #endif /* PCRE2_CODE_UNIT_WIDTH == 8 */ |
| 6696 | OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP1), common->ctypes); |
| 6697 | OP2(SLJIT_LSHR, TMP1, 0, TMP1, 0, SLJIT_IMM, 4 /* ctype_word */); |
| 6698 | OP2(SLJIT_AND, TMP3, 0, TMP1, 0, SLJIT_IMM, 1); |
| 6699 | #if PCRE2_CODE_UNIT_WIDTH != 8 |
| 6700 | JUMPHERE(jump); |
| 6701 | #elif defined SUPPORT_UNICODE |
| 6702 | if (jump != NULL) |
| 6703 | JUMPHERE(jump); |
| 6704 | #endif /* PCRE2_CODE_UNIT_WIDTH == 8 */ |
| 6705 | } |
| 6706 | JUMPHERE(skipread); |
| 6707 | |
| 6708 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, 0); |
| 6709 | check_str_end(common, &skipread_list); |
| 6710 | peek_char(common, READ_CHAR_MAX, SLJIT_MEM1(SLJIT_SP), LOCALS1, &invalid_utf2); |
| 6711 | |
| 6712 | /* Testing char type. This is a code duplication. */ |
| 6713 | #ifdef SUPPORT_UNICODE |
| 6714 | |
| 6715 | valid_utf = LABEL(); |
| 6716 | |
| 6717 | if (common->ucp) |
| 6718 | { |
| 6719 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, 1); |
| 6720 | jump = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_UNDERSCORE); |
| 6721 | add_jump(compiler, &common->getucdtype, JUMP(SLJIT_FAST_CALL)); |
| 6722 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ucp_Ll); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 6723 | OP2U(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, TMP1, 0, SLJIT_IMM, ucp_Lu - ucp_Ll); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 6724 | OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_LESS_EQUAL); |
| 6725 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ucp_Nd - ucp_Ll); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 6726 | OP2U(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, TMP1, 0, SLJIT_IMM, ucp_No - ucp_Nd); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 6727 | OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_LESS_EQUAL); |
| 6728 | JUMPHERE(jump); |
| 6729 | } |
| 6730 | else |
| 6731 | #endif /* SUPPORT_UNICODE */ |
| 6732 | { |
| 6733 | #if PCRE2_CODE_UNIT_WIDTH != 8 |
| 6734 | /* TMP2 may be destroyed by peek_char. */ |
| 6735 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, 0); |
| 6736 | jump = CMP(SLJIT_GREATER, TMP1, 0, SLJIT_IMM, 255); |
| 6737 | #elif defined SUPPORT_UNICODE |
| 6738 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, 0); |
| 6739 | jump = NULL; |
| 6740 | if (common->utf) |
| 6741 | jump = CMP(SLJIT_GREATER, TMP1, 0, SLJIT_IMM, 255); |
| 6742 | #endif |
| 6743 | OP1(SLJIT_MOV_U8, TMP2, 0, SLJIT_MEM1(TMP1), common->ctypes); |
| 6744 | OP2(SLJIT_LSHR, TMP2, 0, TMP2, 0, SLJIT_IMM, 4 /* ctype_word */); |
| 6745 | OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 1); |
| 6746 | #if PCRE2_CODE_UNIT_WIDTH != 8 |
| 6747 | JUMPHERE(jump); |
| 6748 | #elif defined SUPPORT_UNICODE |
| 6749 | if (jump != NULL) |
| 6750 | JUMPHERE(jump); |
| 6751 | #endif /* PCRE2_CODE_UNIT_WIDTH == 8 */ |
| 6752 | } |
| 6753 | set_jumps(skipread_list, LABEL()); |
| 6754 | |
| 6755 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), LOCALS0); |
| 6756 | OP2(SLJIT_XOR | SLJIT_SET_Z, TMP2, 0, TMP2, 0, TMP3, 0); |
| 6757 | OP_SRC(SLJIT_FAST_RETURN, TMP1, 0); |
| 6758 | |
| 6759 | #ifdef SUPPORT_UNICODE |
| 6760 | if (common->invalid_utf) |
| 6761 | { |
| 6762 | set_jumps(invalid_utf1, LABEL()); |
| 6763 | |
| 6764 | peek_char(common, READ_CHAR_MAX, SLJIT_MEM1(SLJIT_SP), LOCALS1, NULL); |
| 6765 | CMPTO(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, INVALID_UTF_CHAR, valid_utf); |
| 6766 | |
| 6767 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), LOCALS0); |
| 6768 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, -1); |
| 6769 | OP_SRC(SLJIT_FAST_RETURN, TMP1, 0); |
| 6770 | |
| 6771 | set_jumps(invalid_utf2, LABEL()); |
| 6772 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), LOCALS0); |
| 6773 | OP1(SLJIT_MOV, TMP2, 0, TMP3, 0); |
| 6774 | OP_SRC(SLJIT_FAST_RETURN, TMP1, 0); |
| 6775 | } |
| 6776 | #endif /* SUPPORT_UNICODE */ |
| 6777 | } |
| 6778 | |
| 6779 | static BOOL optimize_class_ranges(compiler_common *common, const sljit_u8 *bits, BOOL nclass, BOOL invert, jump_list **backtracks) |
| 6780 | { |
| 6781 | /* May destroy TMP1. */ |
| 6782 | DEFINE_COMPILER; |
| 6783 | int ranges[MAX_CLASS_RANGE_SIZE]; |
| 6784 | sljit_u8 bit, cbit, all; |
| 6785 | int i, byte, length = 0; |
| 6786 | |
| 6787 | bit = bits[0] & 0x1; |
| 6788 | /* All bits will be zero or one (since bit is zero or one). */ |
| 6789 | all = -bit; |
| 6790 | |
| 6791 | for (i = 0; i < 256; ) |
| 6792 | { |
| 6793 | byte = i >> 3; |
| 6794 | if ((i & 0x7) == 0 && bits[byte] == all) |
| 6795 | i += 8; |
| 6796 | else |
| 6797 | { |
| 6798 | cbit = (bits[byte] >> (i & 0x7)) & 0x1; |
| 6799 | if (cbit != bit) |
| 6800 | { |
| 6801 | if (length >= MAX_CLASS_RANGE_SIZE) |
| 6802 | return FALSE; |
| 6803 | ranges[length] = i; |
| 6804 | length++; |
| 6805 | bit = cbit; |
| 6806 | all = -cbit; |
| 6807 | } |
| 6808 | i++; |
| 6809 | } |
| 6810 | } |
| 6811 | |
| 6812 | if (((bit == 0) && nclass) || ((bit == 1) && !nclass)) |
| 6813 | { |
| 6814 | if (length >= MAX_CLASS_RANGE_SIZE) |
| 6815 | return FALSE; |
| 6816 | ranges[length] = 256; |
| 6817 | length++; |
| 6818 | } |
| 6819 | |
| 6820 | if (length < 0 || length > 4) |
| 6821 | return FALSE; |
| 6822 | |
| 6823 | bit = bits[0] & 0x1; |
| 6824 | if (invert) bit ^= 0x1; |
| 6825 | |
| 6826 | /* No character is accepted. */ |
| 6827 | if (length == 0 && bit == 0) |
| 6828 | add_jump(compiler, backtracks, JUMP(SLJIT_JUMP)); |
| 6829 | |
| 6830 | switch(length) |
| 6831 | { |
| 6832 | case 0: |
| 6833 | /* When bit != 0, all characters are accepted. */ |
| 6834 | return TRUE; |
| 6835 | |
| 6836 | case 1: |
| 6837 | add_jump(compiler, backtracks, CMP(bit == 0 ? SLJIT_LESS : SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, ranges[0])); |
| 6838 | return TRUE; |
| 6839 | |
| 6840 | case 2: |
| 6841 | if (ranges[0] + 1 != ranges[1]) |
| 6842 | { |
| 6843 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ranges[0]); |
| 6844 | add_jump(compiler, backtracks, CMP(bit != 0 ? SLJIT_LESS : SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, ranges[1] - ranges[0])); |
| 6845 | } |
| 6846 | else |
| 6847 | add_jump(compiler, backtracks, CMP(bit != 0 ? SLJIT_EQUAL : SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, ranges[0])); |
| 6848 | return TRUE; |
| 6849 | |
| 6850 | case 3: |
| 6851 | if (bit != 0) |
| 6852 | { |
| 6853 | add_jump(compiler, backtracks, CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, ranges[2])); |
| 6854 | if (ranges[0] + 1 != ranges[1]) |
| 6855 | { |
| 6856 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ranges[0]); |
| 6857 | add_jump(compiler, backtracks, CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, ranges[1] - ranges[0])); |
| 6858 | } |
| 6859 | else |
| 6860 | add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, ranges[0])); |
| 6861 | return TRUE; |
| 6862 | } |
| 6863 | |
| 6864 | add_jump(compiler, backtracks, CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, ranges[0])); |
| 6865 | if (ranges[1] + 1 != ranges[2]) |
| 6866 | { |
| 6867 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ranges[1]); |
| 6868 | add_jump(compiler, backtracks, CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, ranges[2] - ranges[1])); |
| 6869 | } |
| 6870 | else |
| 6871 | add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, ranges[1])); |
| 6872 | return TRUE; |
| 6873 | |
| 6874 | case 4: |
| 6875 | if ((ranges[1] - ranges[0]) == (ranges[3] - ranges[2]) |
| 6876 | && (ranges[0] | (ranges[2] - ranges[0])) == ranges[2] |
| 6877 | && (ranges[1] & (ranges[2] - ranges[0])) == 0 |
| 6878 | && is_powerof2(ranges[2] - ranges[0])) |
| 6879 | { |
| 6880 | SLJIT_ASSERT((ranges[0] & (ranges[2] - ranges[0])) == 0 && (ranges[2] & ranges[3] & (ranges[2] - ranges[0])) != 0); |
| 6881 | OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, ranges[2] - ranges[0]); |
| 6882 | if (ranges[2] + 1 != ranges[3]) |
| 6883 | { |
| 6884 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ranges[2]); |
| 6885 | add_jump(compiler, backtracks, CMP(bit != 0 ? SLJIT_LESS : SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, ranges[3] - ranges[2])); |
| 6886 | } |
| 6887 | else |
| 6888 | add_jump(compiler, backtracks, CMP(bit != 0 ? SLJIT_EQUAL : SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, ranges[2])); |
| 6889 | return TRUE; |
| 6890 | } |
| 6891 | |
| 6892 | if (bit != 0) |
| 6893 | { |
| 6894 | i = 0; |
| 6895 | if (ranges[0] + 1 != ranges[1]) |
| 6896 | { |
| 6897 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ranges[0]); |
| 6898 | add_jump(compiler, backtracks, CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, ranges[1] - ranges[0])); |
| 6899 | i = ranges[0]; |
| 6900 | } |
| 6901 | else |
| 6902 | add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, ranges[0])); |
| 6903 | |
| 6904 | if (ranges[2] + 1 != ranges[3]) |
| 6905 | { |
| 6906 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ranges[2] - i); |
| 6907 | add_jump(compiler, backtracks, CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, ranges[3] - ranges[2])); |
| 6908 | } |
| 6909 | else |
| 6910 | add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, ranges[2] - i)); |
| 6911 | return TRUE; |
| 6912 | } |
| 6913 | |
| 6914 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ranges[0]); |
| 6915 | add_jump(compiler, backtracks, CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, ranges[3] - ranges[0])); |
| 6916 | if (ranges[1] + 1 != ranges[2]) |
| 6917 | { |
| 6918 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, ranges[1] - ranges[0]); |
| 6919 | add_jump(compiler, backtracks, CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, ranges[2] - ranges[1])); |
| 6920 | } |
| 6921 | else |
| 6922 | add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, ranges[1] - ranges[0])); |
| 6923 | return TRUE; |
| 6924 | |
| 6925 | default: |
| 6926 | SLJIT_UNREACHABLE(); |
| 6927 | return FALSE; |
| 6928 | } |
| 6929 | } |
| 6930 | |
| 6931 | static BOOL optimize_class_chars(compiler_common *common, const sljit_u8 *bits, BOOL nclass, BOOL invert, jump_list **backtracks) |
| 6932 | { |
| 6933 | /* May destroy TMP1. */ |
| 6934 | DEFINE_COMPILER; |
| 6935 | uint16_t char_list[MAX_CLASS_CHARS_SIZE]; |
| 6936 | uint8_t byte; |
| 6937 | sljit_s32 type; |
| 6938 | int i, j, k, len, c; |
| 6939 | |
| 6940 | if (!sljit_has_cpu_feature(SLJIT_HAS_CMOV)) |
| 6941 | return FALSE; |
| 6942 | |
| 6943 | len = 0; |
| 6944 | |
| 6945 | for (i = 0; i < 32; i++) |
| 6946 | { |
| 6947 | byte = bits[i]; |
| 6948 | |
| 6949 | if (nclass) |
| 6950 | byte = ~byte; |
| 6951 | |
| 6952 | j = 0; |
| 6953 | while (byte != 0) |
| 6954 | { |
| 6955 | if (byte & 0x1) |
| 6956 | { |
| 6957 | c = i * 8 + j; |
| 6958 | |
| 6959 | k = len; |
| 6960 | |
| 6961 | if ((c & 0x20) != 0) |
| 6962 | { |
| 6963 | for (k = 0; k < len; k++) |
| 6964 | if (char_list[k] == c - 0x20) |
| 6965 | { |
| 6966 | char_list[k] |= 0x120; |
| 6967 | break; |
| 6968 | } |
| 6969 | } |
| 6970 | |
| 6971 | if (k == len) |
| 6972 | { |
| 6973 | if (len >= MAX_CLASS_CHARS_SIZE) |
| 6974 | return FALSE; |
| 6975 | |
| 6976 | char_list[len++] = (uint16_t) c; |
| 6977 | } |
| 6978 | } |
| 6979 | |
| 6980 | byte >>= 1; |
| 6981 | j++; |
| 6982 | } |
| 6983 | } |
| 6984 | |
| 6985 | if (len == 0) return FALSE; /* Should never occur, but stops analyzers complaining. */ |
| 6986 | |
| 6987 | i = 0; |
| 6988 | j = 0; |
| 6989 | |
| 6990 | if (char_list[0] == 0) |
| 6991 | { |
| 6992 | i++; |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 6993 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, 0); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 6994 | OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_ZERO); |
| 6995 | } |
| 6996 | else |
| 6997 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, 0); |
| 6998 | |
| 6999 | while (i < len) |
| 7000 | { |
| 7001 | if ((char_list[i] & 0x100) != 0) |
| 7002 | j++; |
| 7003 | else |
| 7004 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7005 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, char_list[i]); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7006 | CMOV(SLJIT_ZERO, TMP2, TMP1, 0); |
| 7007 | } |
| 7008 | i++; |
| 7009 | } |
| 7010 | |
| 7011 | if (j != 0) |
| 7012 | { |
| 7013 | OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x20); |
| 7014 | |
| 7015 | for (i = 0; i < len; i++) |
| 7016 | if ((char_list[i] & 0x100) != 0) |
| 7017 | { |
| 7018 | j--; |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7019 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, char_list[i] & 0xff); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7020 | CMOV(SLJIT_ZERO, TMP2, TMP1, 0); |
| 7021 | } |
| 7022 | } |
| 7023 | |
| 7024 | if (invert) |
| 7025 | nclass = !nclass; |
| 7026 | |
| 7027 | type = nclass ? SLJIT_NOT_EQUAL : SLJIT_EQUAL; |
| 7028 | add_jump(compiler, backtracks, CMP(type, TMP2, 0, SLJIT_IMM, 0)); |
| 7029 | return TRUE; |
| 7030 | } |
| 7031 | |
| 7032 | static BOOL optimize_class(compiler_common *common, const sljit_u8 *bits, BOOL nclass, BOOL invert, jump_list **backtracks) |
| 7033 | { |
| 7034 | /* May destroy TMP1. */ |
| 7035 | if (optimize_class_ranges(common, bits, nclass, invert, backtracks)) |
| 7036 | return TRUE; |
| 7037 | return optimize_class_chars(common, bits, nclass, invert, backtracks); |
| 7038 | } |
| 7039 | |
| 7040 | static void check_anynewline(compiler_common *common) |
| 7041 | { |
| 7042 | /* Check whether TMP1 contains a newline character. TMP2 destroyed. */ |
| 7043 | DEFINE_COMPILER; |
| 7044 | |
| 7045 | sljit_emit_fast_enter(compiler, RETURN_ADDR, 0); |
| 7046 | |
| 7047 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x0a); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7048 | OP2U(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, TMP1, 0, SLJIT_IMM, 0x0d - 0x0a); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7049 | OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_LESS_EQUAL); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7050 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, 0x85 - 0x0a); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7051 | #if defined SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32 |
| 7052 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 7053 | if (common->utf) |
| 7054 | { |
| 7055 | #endif |
| 7056 | OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL); |
| 7057 | OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x1); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7058 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, 0x2029 - 0x0a); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7059 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 7060 | } |
| 7061 | #endif |
| 7062 | #endif /* SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH == [16|32] */ |
| 7063 | OP_FLAGS(SLJIT_OR | SLJIT_SET_Z, TMP2, 0, SLJIT_EQUAL); |
| 7064 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 7065 | } |
| 7066 | |
| 7067 | static void check_hspace(compiler_common *common) |
| 7068 | { |
| 7069 | /* Check whether TMP1 contains a newline character. TMP2 destroyed. */ |
| 7070 | DEFINE_COMPILER; |
| 7071 | |
| 7072 | sljit_emit_fast_enter(compiler, RETURN_ADDR, 0); |
| 7073 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7074 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, 0x09); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7075 | OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_EQUAL); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7076 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, 0x20); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7077 | OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7078 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, 0xa0); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7079 | #if defined SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32 |
| 7080 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 7081 | if (common->utf) |
| 7082 | { |
| 7083 | #endif |
| 7084 | OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7085 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, 0x1680); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7086 | OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7087 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, 0x180e); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7088 | OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL); |
| 7089 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x2000); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7090 | OP2U(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, TMP1, 0, SLJIT_IMM, 0x200A - 0x2000); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7091 | OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_LESS_EQUAL); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7092 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, 0x202f - 0x2000); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7093 | OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7094 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, 0x205f - 0x2000); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7095 | OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7096 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, 0x3000 - 0x2000); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7097 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 7098 | } |
| 7099 | #endif |
| 7100 | #endif /* SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH == [16|32] */ |
| 7101 | OP_FLAGS(SLJIT_OR | SLJIT_SET_Z, TMP2, 0, SLJIT_EQUAL); |
| 7102 | |
| 7103 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 7104 | } |
| 7105 | |
| 7106 | static void check_vspace(compiler_common *common) |
| 7107 | { |
| 7108 | /* Check whether TMP1 contains a newline character. TMP2 destroyed. */ |
| 7109 | DEFINE_COMPILER; |
| 7110 | |
| 7111 | sljit_emit_fast_enter(compiler, RETURN_ADDR, 0); |
| 7112 | |
| 7113 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x0a); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7114 | OP2U(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, TMP1, 0, SLJIT_IMM, 0x0d - 0x0a); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7115 | OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_LESS_EQUAL); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7116 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, 0x85 - 0x0a); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7117 | #if defined SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32 |
| 7118 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 7119 | if (common->utf) |
| 7120 | { |
| 7121 | #endif |
| 7122 | OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL); |
| 7123 | OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, 0x1); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7124 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, 0x2029 - 0x0a); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7125 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 7126 | } |
| 7127 | #endif |
| 7128 | #endif /* SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH == [16|32] */ |
| 7129 | OP_FLAGS(SLJIT_OR | SLJIT_SET_Z, TMP2, 0, SLJIT_EQUAL); |
| 7130 | |
| 7131 | OP_SRC(SLJIT_FAST_RETURN, RETURN_ADDR, 0); |
| 7132 | } |
| 7133 | |
| 7134 | static void do_casefulcmp(compiler_common *common) |
| 7135 | { |
| 7136 | DEFINE_COMPILER; |
| 7137 | struct sljit_jump *jump; |
| 7138 | struct sljit_label *label; |
| 7139 | int char1_reg; |
| 7140 | int char2_reg; |
| 7141 | |
| 7142 | if (HAS_VIRTUAL_REGISTERS) |
| 7143 | { |
| 7144 | char1_reg = STR_END; |
| 7145 | char2_reg = STACK_TOP; |
| 7146 | } |
| 7147 | else |
| 7148 | { |
| 7149 | char1_reg = TMP3; |
| 7150 | char2_reg = RETURN_ADDR; |
| 7151 | } |
| 7152 | |
| 7153 | sljit_emit_fast_enter(compiler, SLJIT_MEM1(SLJIT_SP), LOCALS0); |
| 7154 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP2, 0); |
| 7155 | |
| 7156 | if (char1_reg == STR_END) |
| 7157 | { |
| 7158 | OP1(SLJIT_MOV, TMP3, 0, char1_reg, 0); |
| 7159 | OP1(SLJIT_MOV, RETURN_ADDR, 0, char2_reg, 0); |
| 7160 | } |
| 7161 | |
| 7162 | if (sljit_emit_mem(compiler, MOV_UCHAR | SLJIT_MEM_SUPP | SLJIT_MEM_POST, char1_reg, SLJIT_MEM1(TMP1), IN_UCHARS(1)) == SLJIT_SUCCESS) |
| 7163 | { |
| 7164 | label = LABEL(); |
| 7165 | sljit_emit_mem(compiler, MOV_UCHAR | SLJIT_MEM_POST, char1_reg, SLJIT_MEM1(TMP1), IN_UCHARS(1)); |
| 7166 | sljit_emit_mem(compiler, MOV_UCHAR | SLJIT_MEM_POST, char2_reg, SLJIT_MEM1(STR_PTR), IN_UCHARS(1)); |
| 7167 | jump = CMP(SLJIT_NOT_EQUAL, char1_reg, 0, char2_reg, 0); |
| 7168 | OP2(SLJIT_SUB | SLJIT_SET_Z, TMP2, 0, TMP2, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 7169 | JUMPTO(SLJIT_NOT_ZERO, label); |
| 7170 | |
| 7171 | JUMPHERE(jump); |
| 7172 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), LOCALS0); |
| 7173 | } |
| 7174 | else if (sljit_emit_mem(compiler, MOV_UCHAR | SLJIT_MEM_SUPP | SLJIT_MEM_PRE, char1_reg, SLJIT_MEM1(TMP1), IN_UCHARS(1)) == SLJIT_SUCCESS) |
| 7175 | { |
| 7176 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 7177 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 7178 | |
| 7179 | label = LABEL(); |
| 7180 | sljit_emit_mem(compiler, MOV_UCHAR | SLJIT_MEM_PRE, char1_reg, SLJIT_MEM1(TMP1), IN_UCHARS(1)); |
| 7181 | sljit_emit_mem(compiler, MOV_UCHAR | SLJIT_MEM_PRE, char2_reg, SLJIT_MEM1(STR_PTR), IN_UCHARS(1)); |
| 7182 | jump = CMP(SLJIT_NOT_EQUAL, char1_reg, 0, char2_reg, 0); |
| 7183 | OP2(SLJIT_SUB | SLJIT_SET_Z, TMP2, 0, TMP2, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 7184 | JUMPTO(SLJIT_NOT_ZERO, label); |
| 7185 | |
| 7186 | JUMPHERE(jump); |
| 7187 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), LOCALS0); |
| 7188 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 7189 | } |
| 7190 | else |
| 7191 | { |
| 7192 | label = LABEL(); |
| 7193 | OP1(MOV_UCHAR, char1_reg, 0, SLJIT_MEM1(TMP1), 0); |
| 7194 | OP1(MOV_UCHAR, char2_reg, 0, SLJIT_MEM1(STR_PTR), 0); |
| 7195 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 7196 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 7197 | jump = CMP(SLJIT_NOT_EQUAL, char1_reg, 0, char2_reg, 0); |
| 7198 | OP2(SLJIT_SUB | SLJIT_SET_Z, TMP2, 0, TMP2, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 7199 | JUMPTO(SLJIT_NOT_ZERO, label); |
| 7200 | |
| 7201 | JUMPHERE(jump); |
| 7202 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), LOCALS0); |
| 7203 | } |
| 7204 | |
| 7205 | if (char1_reg == STR_END) |
| 7206 | { |
| 7207 | OP1(SLJIT_MOV, char1_reg, 0, TMP3, 0); |
| 7208 | OP1(SLJIT_MOV, char2_reg, 0, RETURN_ADDR, 0); |
| 7209 | } |
| 7210 | |
| 7211 | OP_SRC(SLJIT_FAST_RETURN, TMP1, 0); |
| 7212 | } |
| 7213 | |
| 7214 | static void do_caselesscmp(compiler_common *common) |
| 7215 | { |
| 7216 | DEFINE_COMPILER; |
| 7217 | struct sljit_jump *jump; |
| 7218 | struct sljit_label *label; |
| 7219 | int char1_reg = STR_END; |
| 7220 | int char2_reg; |
| 7221 | int lcc_table; |
| 7222 | int opt_type = 0; |
| 7223 | |
| 7224 | if (HAS_VIRTUAL_REGISTERS) |
| 7225 | { |
| 7226 | char2_reg = STACK_TOP; |
| 7227 | lcc_table = STACK_LIMIT; |
| 7228 | } |
| 7229 | else |
| 7230 | { |
| 7231 | char2_reg = RETURN_ADDR; |
| 7232 | lcc_table = TMP3; |
| 7233 | } |
| 7234 | |
| 7235 | if (sljit_emit_mem(compiler, MOV_UCHAR | SLJIT_MEM_SUPP | SLJIT_MEM_POST, char1_reg, SLJIT_MEM1(TMP1), IN_UCHARS(1)) == SLJIT_SUCCESS) |
| 7236 | opt_type = 1; |
| 7237 | else if (sljit_emit_mem(compiler, MOV_UCHAR | SLJIT_MEM_SUPP | SLJIT_MEM_PRE, char1_reg, SLJIT_MEM1(TMP1), IN_UCHARS(1)) == SLJIT_SUCCESS) |
| 7238 | opt_type = 2; |
| 7239 | |
| 7240 | sljit_emit_fast_enter(compiler, SLJIT_MEM1(SLJIT_SP), LOCALS0); |
| 7241 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP2, 0); |
| 7242 | |
| 7243 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS1, char1_reg, 0); |
| 7244 | |
| 7245 | if (char2_reg == STACK_TOP) |
| 7246 | { |
| 7247 | OP1(SLJIT_MOV, TMP3, 0, char2_reg, 0); |
| 7248 | OP1(SLJIT_MOV, RETURN_ADDR, 0, lcc_table, 0); |
| 7249 | } |
| 7250 | |
| 7251 | OP1(SLJIT_MOV, lcc_table, 0, SLJIT_IMM, common->lcc); |
| 7252 | |
| 7253 | if (opt_type == 1) |
| 7254 | { |
| 7255 | label = LABEL(); |
| 7256 | sljit_emit_mem(compiler, MOV_UCHAR | SLJIT_MEM_POST, char1_reg, SLJIT_MEM1(TMP1), IN_UCHARS(1)); |
| 7257 | sljit_emit_mem(compiler, MOV_UCHAR | SLJIT_MEM_POST, char2_reg, SLJIT_MEM1(STR_PTR), IN_UCHARS(1)); |
| 7258 | } |
| 7259 | else if (opt_type == 2) |
| 7260 | { |
| 7261 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 7262 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 7263 | |
| 7264 | label = LABEL(); |
| 7265 | sljit_emit_mem(compiler, MOV_UCHAR | SLJIT_MEM_PRE, char1_reg, SLJIT_MEM1(TMP1), IN_UCHARS(1)); |
| 7266 | sljit_emit_mem(compiler, MOV_UCHAR | SLJIT_MEM_PRE, char2_reg, SLJIT_MEM1(STR_PTR), IN_UCHARS(1)); |
| 7267 | } |
| 7268 | else |
| 7269 | { |
| 7270 | label = LABEL(); |
| 7271 | OP1(MOV_UCHAR, char1_reg, 0, SLJIT_MEM1(TMP1), 0); |
| 7272 | OP1(MOV_UCHAR, char2_reg, 0, SLJIT_MEM1(STR_PTR), 0); |
| 7273 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 7274 | } |
| 7275 | |
| 7276 | #if PCRE2_CODE_UNIT_WIDTH != 8 |
| 7277 | jump = CMP(SLJIT_GREATER, char1_reg, 0, SLJIT_IMM, 255); |
| 7278 | #endif |
| 7279 | OP1(SLJIT_MOV_U8, char1_reg, 0, SLJIT_MEM2(lcc_table, char1_reg), 0); |
| 7280 | #if PCRE2_CODE_UNIT_WIDTH != 8 |
| 7281 | JUMPHERE(jump); |
| 7282 | jump = CMP(SLJIT_GREATER, char2_reg, 0, SLJIT_IMM, 255); |
| 7283 | #endif |
| 7284 | OP1(SLJIT_MOV_U8, char2_reg, 0, SLJIT_MEM2(lcc_table, char2_reg), 0); |
| 7285 | #if PCRE2_CODE_UNIT_WIDTH != 8 |
| 7286 | JUMPHERE(jump); |
| 7287 | #endif |
| 7288 | |
| 7289 | if (opt_type == 0) |
| 7290 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 7291 | |
| 7292 | jump = CMP(SLJIT_NOT_EQUAL, char1_reg, 0, char2_reg, 0); |
| 7293 | OP2(SLJIT_SUB | SLJIT_SET_Z, TMP2, 0, TMP2, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 7294 | JUMPTO(SLJIT_NOT_ZERO, label); |
| 7295 | |
| 7296 | JUMPHERE(jump); |
| 7297 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), LOCALS0); |
| 7298 | |
| 7299 | if (opt_type == 2) |
| 7300 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 7301 | |
| 7302 | if (char2_reg == STACK_TOP) |
| 7303 | { |
| 7304 | OP1(SLJIT_MOV, char2_reg, 0, TMP3, 0); |
| 7305 | OP1(SLJIT_MOV, lcc_table, 0, RETURN_ADDR, 0); |
| 7306 | } |
| 7307 | |
| 7308 | OP1(SLJIT_MOV, char1_reg, 0, SLJIT_MEM1(SLJIT_SP), LOCALS1); |
| 7309 | OP_SRC(SLJIT_FAST_RETURN, TMP1, 0); |
| 7310 | } |
| 7311 | |
| 7312 | static PCRE2_SPTR byte_sequence_compare(compiler_common *common, BOOL caseless, PCRE2_SPTR cc, |
| 7313 | compare_context *context, jump_list **backtracks) |
| 7314 | { |
| 7315 | DEFINE_COMPILER; |
| 7316 | unsigned int othercasebit = 0; |
| 7317 | PCRE2_SPTR othercasechar = NULL; |
| 7318 | #ifdef SUPPORT_UNICODE |
| 7319 | int utflength; |
| 7320 | #endif |
| 7321 | |
| 7322 | if (caseless && char_has_othercase(common, cc)) |
| 7323 | { |
| 7324 | othercasebit = char_get_othercase_bit(common, cc); |
| 7325 | SLJIT_ASSERT(othercasebit); |
| 7326 | /* Extracting bit difference info. */ |
| 7327 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 7328 | othercasechar = cc + (othercasebit >> 8); |
| 7329 | othercasebit &= 0xff; |
| 7330 | #elif PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32 |
| 7331 | /* Note that this code only handles characters in the BMP. If there |
| 7332 | ever are characters outside the BMP whose othercase differs in only one |
| 7333 | bit from itself (there currently are none), this code will need to be |
| 7334 | revised for PCRE2_CODE_UNIT_WIDTH == 32. */ |
| 7335 | othercasechar = cc + (othercasebit >> 9); |
| 7336 | if ((othercasebit & 0x100) != 0) |
| 7337 | othercasebit = (othercasebit & 0xff) << 8; |
| 7338 | else |
| 7339 | othercasebit &= 0xff; |
| 7340 | #endif /* PCRE2_CODE_UNIT_WIDTH == [8|16|32] */ |
| 7341 | } |
| 7342 | |
| 7343 | if (context->sourcereg == -1) |
| 7344 | { |
| 7345 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 7346 | #if defined SLJIT_UNALIGNED && SLJIT_UNALIGNED |
| 7347 | if (context->length >= 4) |
| 7348 | OP1(SLJIT_MOV_S32, TMP1, 0, SLJIT_MEM1(STR_PTR), -context->length); |
| 7349 | else if (context->length >= 2) |
| 7350 | OP1(SLJIT_MOV_U16, TMP1, 0, SLJIT_MEM1(STR_PTR), -context->length); |
| 7351 | else |
| 7352 | #endif |
| 7353 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), -context->length); |
| 7354 | #elif PCRE2_CODE_UNIT_WIDTH == 16 |
| 7355 | #if defined SLJIT_UNALIGNED && SLJIT_UNALIGNED |
| 7356 | if (context->length >= 4) |
| 7357 | OP1(SLJIT_MOV_S32, TMP1, 0, SLJIT_MEM1(STR_PTR), -context->length); |
| 7358 | else |
| 7359 | #endif |
| 7360 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), -context->length); |
| 7361 | #elif PCRE2_CODE_UNIT_WIDTH == 32 |
| 7362 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), -context->length); |
| 7363 | #endif /* PCRE2_CODE_UNIT_WIDTH == [8|16|32] */ |
| 7364 | context->sourcereg = TMP2; |
| 7365 | } |
| 7366 | |
| 7367 | #ifdef SUPPORT_UNICODE |
| 7368 | utflength = 1; |
| 7369 | if (common->utf && HAS_EXTRALEN(*cc)) |
| 7370 | utflength += GET_EXTRALEN(*cc); |
| 7371 | |
| 7372 | do |
| 7373 | { |
| 7374 | #endif |
| 7375 | |
| 7376 | context->length -= IN_UCHARS(1); |
| 7377 | #if (defined SLJIT_UNALIGNED && SLJIT_UNALIGNED) && (PCRE2_CODE_UNIT_WIDTH == 8 || PCRE2_CODE_UNIT_WIDTH == 16) |
| 7378 | |
| 7379 | /* Unaligned read is supported. */ |
| 7380 | if (othercasebit != 0 && othercasechar == cc) |
| 7381 | { |
| 7382 | context->c.asuchars[context->ucharptr] = *cc | othercasebit; |
| 7383 | context->oc.asuchars[context->ucharptr] = othercasebit; |
| 7384 | } |
| 7385 | else |
| 7386 | { |
| 7387 | context->c.asuchars[context->ucharptr] = *cc; |
| 7388 | context->oc.asuchars[context->ucharptr] = 0; |
| 7389 | } |
| 7390 | context->ucharptr++; |
| 7391 | |
| 7392 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 7393 | if (context->ucharptr >= 4 || context->length == 0 || (context->ucharptr == 2 && context->length == 1)) |
| 7394 | #else |
| 7395 | if (context->ucharptr >= 2 || context->length == 0) |
| 7396 | #endif |
| 7397 | { |
| 7398 | if (context->length >= 4) |
| 7399 | OP1(SLJIT_MOV_S32, context->sourcereg, 0, SLJIT_MEM1(STR_PTR), -context->length); |
| 7400 | else if (context->length >= 2) |
| 7401 | OP1(SLJIT_MOV_U16, context->sourcereg, 0, SLJIT_MEM1(STR_PTR), -context->length); |
| 7402 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 7403 | else if (context->length >= 1) |
| 7404 | OP1(SLJIT_MOV_U8, context->sourcereg, 0, SLJIT_MEM1(STR_PTR), -context->length); |
| 7405 | #endif /* PCRE2_CODE_UNIT_WIDTH == 8 */ |
| 7406 | context->sourcereg = context->sourcereg == TMP1 ? TMP2 : TMP1; |
| 7407 | |
| 7408 | switch(context->ucharptr) |
| 7409 | { |
| 7410 | case 4 / sizeof(PCRE2_UCHAR): |
| 7411 | if (context->oc.asint != 0) |
| 7412 | OP2(SLJIT_OR, context->sourcereg, 0, context->sourcereg, 0, SLJIT_IMM, context->oc.asint); |
| 7413 | add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, context->sourcereg, 0, SLJIT_IMM, context->c.asint | context->oc.asint)); |
| 7414 | break; |
| 7415 | |
| 7416 | case 2 / sizeof(PCRE2_UCHAR): |
| 7417 | if (context->oc.asushort != 0) |
| 7418 | OP2(SLJIT_OR, context->sourcereg, 0, context->sourcereg, 0, SLJIT_IMM, context->oc.asushort); |
| 7419 | add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, context->sourcereg, 0, SLJIT_IMM, context->c.asushort | context->oc.asushort)); |
| 7420 | break; |
| 7421 | |
| 7422 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 7423 | case 1: |
| 7424 | if (context->oc.asbyte != 0) |
| 7425 | OP2(SLJIT_OR, context->sourcereg, 0, context->sourcereg, 0, SLJIT_IMM, context->oc.asbyte); |
| 7426 | add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, context->sourcereg, 0, SLJIT_IMM, context->c.asbyte | context->oc.asbyte)); |
| 7427 | break; |
| 7428 | #endif |
| 7429 | |
| 7430 | default: |
| 7431 | SLJIT_UNREACHABLE(); |
| 7432 | break; |
| 7433 | } |
| 7434 | context->ucharptr = 0; |
| 7435 | } |
| 7436 | |
| 7437 | #else |
| 7438 | |
| 7439 | /* Unaligned read is unsupported or in 32 bit mode. */ |
| 7440 | if (context->length >= 1) |
| 7441 | OP1(MOV_UCHAR, context->sourcereg, 0, SLJIT_MEM1(STR_PTR), -context->length); |
| 7442 | |
| 7443 | context->sourcereg = context->sourcereg == TMP1 ? TMP2 : TMP1; |
| 7444 | |
| 7445 | if (othercasebit != 0 && othercasechar == cc) |
| 7446 | { |
| 7447 | OP2(SLJIT_OR, context->sourcereg, 0, context->sourcereg, 0, SLJIT_IMM, othercasebit); |
| 7448 | add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, context->sourcereg, 0, SLJIT_IMM, *cc | othercasebit)); |
| 7449 | } |
| 7450 | else |
| 7451 | add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, context->sourcereg, 0, SLJIT_IMM, *cc)); |
| 7452 | |
| 7453 | #endif |
| 7454 | |
| 7455 | cc++; |
| 7456 | #ifdef SUPPORT_UNICODE |
| 7457 | utflength--; |
| 7458 | } |
| 7459 | while (utflength > 0); |
| 7460 | #endif |
| 7461 | |
| 7462 | return cc; |
| 7463 | } |
| 7464 | |
| 7465 | #if defined SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH != 8 |
| 7466 | |
| 7467 | #define SET_TYPE_OFFSET(value) \ |
| 7468 | if ((value) != typeoffset) \ |
| 7469 | { \ |
| 7470 | if ((value) < typeoffset) \ |
| 7471 | OP2(SLJIT_ADD, typereg, 0, typereg, 0, SLJIT_IMM, typeoffset - (value)); \ |
| 7472 | else \ |
| 7473 | OP2(SLJIT_SUB, typereg, 0, typereg, 0, SLJIT_IMM, (value) - typeoffset); \ |
| 7474 | } \ |
| 7475 | typeoffset = (value); |
| 7476 | |
| 7477 | #define SET_CHAR_OFFSET(value) \ |
| 7478 | if ((value) != charoffset) \ |
| 7479 | { \ |
| 7480 | if ((value) < charoffset) \ |
| 7481 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)(charoffset - (value))); \ |
| 7482 | else \ |
| 7483 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)((value) - charoffset)); \ |
| 7484 | } \ |
| 7485 | charoffset = (value); |
| 7486 | |
| 7487 | static PCRE2_SPTR compile_char1_matchingpath(compiler_common *common, PCRE2_UCHAR type, PCRE2_SPTR cc, jump_list **backtracks, BOOL check_str_ptr); |
| 7488 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7489 | #ifdef SUPPORT_UNICODE |
| 7490 | #define XCLASS_SAVE_CHAR 0x001 |
| 7491 | #define XCLASS_CHAR_SAVED 0x002 |
| 7492 | #define XCLASS_HAS_TYPE 0x004 |
| 7493 | #define XCLASS_HAS_SCRIPT 0x008 |
| 7494 | #define XCLASS_HAS_SCRIPT_EXTENSION 0x010 |
| 7495 | #define XCLASS_HAS_BOOL 0x020 |
| 7496 | #define XCLASS_HAS_BIDICL 0x040 |
| 7497 | #define XCLASS_NEEDS_UCD (XCLASS_HAS_TYPE | XCLASS_HAS_SCRIPT | XCLASS_HAS_SCRIPT_EXTENSION | XCLASS_HAS_BOOL | XCLASS_HAS_BIDICL) |
| 7498 | #define XCLASS_SCRIPT_EXTENSION_NOTPROP 0x080 |
| 7499 | #define XCLASS_SCRIPT_EXTENSION_RESTORE_RETURN_ADDR 0x100 |
| 7500 | #define XCLASS_SCRIPT_EXTENSION_RESTORE_LOCALS0 0x200 |
| 7501 | |
| 7502 | #endif /* SUPPORT_UNICODE */ |
| 7503 | |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7504 | static void compile_xclass_matchingpath(compiler_common *common, PCRE2_SPTR cc, jump_list **backtracks) |
| 7505 | { |
| 7506 | DEFINE_COMPILER; |
| 7507 | jump_list *found = NULL; |
| 7508 | jump_list **list = (cc[0] & XCL_NOT) == 0 ? &found : backtracks; |
| 7509 | sljit_uw c, charoffset, max = 256, min = READ_CHAR_MAX; |
| 7510 | struct sljit_jump *jump = NULL; |
| 7511 | PCRE2_SPTR ccbegin; |
| 7512 | int compares, invertcmp, numberofcmps; |
| 7513 | #if defined SUPPORT_UNICODE && (PCRE2_CODE_UNIT_WIDTH == 8 || PCRE2_CODE_UNIT_WIDTH == 16) |
| 7514 | BOOL utf = common->utf; |
| 7515 | #endif /* SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == [8|16] */ |
| 7516 | |
| 7517 | #ifdef SUPPORT_UNICODE |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7518 | sljit_u32 unicode_status = 0; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7519 | int typereg = TMP1; |
| 7520 | const sljit_u32 *other_cases; |
| 7521 | sljit_uw typeoffset; |
| 7522 | #endif /* SUPPORT_UNICODE */ |
| 7523 | |
| 7524 | /* Scanning the necessary info. */ |
| 7525 | cc++; |
| 7526 | ccbegin = cc; |
| 7527 | compares = 0; |
| 7528 | |
| 7529 | if (cc[-1] & XCL_MAP) |
| 7530 | { |
| 7531 | min = 0; |
| 7532 | cc += 32 / sizeof(PCRE2_UCHAR); |
| 7533 | } |
| 7534 | |
| 7535 | while (*cc != XCL_END) |
| 7536 | { |
| 7537 | compares++; |
| 7538 | if (*cc == XCL_SINGLE) |
| 7539 | { |
| 7540 | cc ++; |
| 7541 | GETCHARINCTEST(c, cc); |
| 7542 | if (c > max) max = c; |
| 7543 | if (c < min) min = c; |
| 7544 | #ifdef SUPPORT_UNICODE |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7545 | unicode_status |= XCLASS_SAVE_CHAR; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7546 | #endif /* SUPPORT_UNICODE */ |
| 7547 | } |
| 7548 | else if (*cc == XCL_RANGE) |
| 7549 | { |
| 7550 | cc ++; |
| 7551 | GETCHARINCTEST(c, cc); |
| 7552 | if (c < min) min = c; |
| 7553 | GETCHARINCTEST(c, cc); |
| 7554 | if (c > max) max = c; |
| 7555 | #ifdef SUPPORT_UNICODE |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7556 | unicode_status |= XCLASS_SAVE_CHAR; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7557 | #endif /* SUPPORT_UNICODE */ |
| 7558 | } |
| 7559 | #ifdef SUPPORT_UNICODE |
| 7560 | else |
| 7561 | { |
| 7562 | SLJIT_ASSERT(*cc == XCL_PROP || *cc == XCL_NOTPROP); |
| 7563 | cc++; |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7564 | if (*cc == PT_CLIST && cc[-1] == XCL_PROP) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7565 | { |
| 7566 | other_cases = PRIV(ucd_caseless_sets) + cc[1]; |
| 7567 | while (*other_cases != NOTACHAR) |
| 7568 | { |
| 7569 | if (*other_cases > max) max = *other_cases; |
| 7570 | if (*other_cases < min) min = *other_cases; |
| 7571 | other_cases++; |
| 7572 | } |
| 7573 | } |
| 7574 | else |
| 7575 | { |
| 7576 | max = READ_CHAR_MAX; |
| 7577 | min = 0; |
| 7578 | } |
| 7579 | |
| 7580 | switch(*cc) |
| 7581 | { |
| 7582 | case PT_ANY: |
| 7583 | /* Any either accepts everything or ignored. */ |
| 7584 | if (cc[-1] == XCL_PROP) |
| 7585 | { |
| 7586 | compile_char1_matchingpath(common, OP_ALLANY, cc, backtracks, FALSE); |
| 7587 | if (list == backtracks) |
| 7588 | add_jump(compiler, backtracks, JUMP(SLJIT_JUMP)); |
| 7589 | return; |
| 7590 | } |
| 7591 | break; |
| 7592 | |
| 7593 | case PT_LAMP: |
| 7594 | case PT_GC: |
| 7595 | case PT_PC: |
| 7596 | case PT_ALNUM: |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7597 | unicode_status |= XCLASS_HAS_TYPE; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7598 | break; |
| 7599 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7600 | case PT_SCX: |
| 7601 | unicode_status |= XCLASS_HAS_SCRIPT_EXTENSION; |
| 7602 | if (cc[-1] == XCL_NOTPROP) |
| 7603 | { |
| 7604 | unicode_status |= XCLASS_SCRIPT_EXTENSION_NOTPROP; |
| 7605 | break; |
| 7606 | } |
| 7607 | compares++; |
| 7608 | /* Fall through */ |
| 7609 | |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7610 | case PT_SC: |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7611 | unicode_status |= XCLASS_HAS_SCRIPT; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7612 | break; |
| 7613 | |
| 7614 | case PT_SPACE: |
| 7615 | case PT_PXSPACE: |
| 7616 | case PT_WORD: |
| 7617 | case PT_PXGRAPH: |
| 7618 | case PT_PXPRINT: |
| 7619 | case PT_PXPUNCT: |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7620 | unicode_status |= XCLASS_SAVE_CHAR | XCLASS_HAS_TYPE; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7621 | break; |
| 7622 | |
| 7623 | case PT_CLIST: |
| 7624 | case PT_UCNC: |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7625 | unicode_status |= XCLASS_SAVE_CHAR; |
| 7626 | break; |
| 7627 | |
| 7628 | case PT_BOOL: |
| 7629 | unicode_status |= XCLASS_HAS_BOOL; |
| 7630 | break; |
| 7631 | |
| 7632 | case PT_BIDICL: |
| 7633 | unicode_status |= XCLASS_HAS_BIDICL; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7634 | break; |
| 7635 | |
| 7636 | default: |
| 7637 | SLJIT_UNREACHABLE(); |
| 7638 | break; |
| 7639 | } |
| 7640 | cc += 2; |
| 7641 | } |
| 7642 | #endif /* SUPPORT_UNICODE */ |
| 7643 | } |
| 7644 | SLJIT_ASSERT(compares > 0); |
| 7645 | |
| 7646 | /* We are not necessary in utf mode even in 8 bit mode. */ |
| 7647 | cc = ccbegin; |
| 7648 | if ((cc[-1] & XCL_NOT) != 0) |
| 7649 | read_char(common, min, max, backtracks, READ_CHAR_UPDATE_STR_PTR); |
| 7650 | else |
| 7651 | { |
| 7652 | #ifdef SUPPORT_UNICODE |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7653 | read_char(common, min, max, (unicode_status & XCLASS_NEEDS_UCD) ? backtracks : NULL, 0); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7654 | #else /* !SUPPORT_UNICODE */ |
| 7655 | read_char(common, min, max, NULL, 0); |
| 7656 | #endif /* SUPPORT_UNICODE */ |
| 7657 | } |
| 7658 | |
| 7659 | if ((cc[-1] & XCL_HASPROP) == 0) |
| 7660 | { |
| 7661 | if ((cc[-1] & XCL_MAP) != 0) |
| 7662 | { |
| 7663 | jump = CMP(SLJIT_GREATER, TMP1, 0, SLJIT_IMM, 255); |
| 7664 | if (!optimize_class(common, (const sljit_u8 *)cc, (((const sljit_u8 *)cc)[31] & 0x80) != 0, TRUE, &found)) |
| 7665 | { |
| 7666 | OP2(SLJIT_AND, TMP2, 0, TMP1, 0, SLJIT_IMM, 0x7); |
| 7667 | OP2(SLJIT_LSHR, TMP1, 0, TMP1, 0, SLJIT_IMM, 3); |
| 7668 | OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)cc); |
| 7669 | OP2(SLJIT_SHL, TMP2, 0, SLJIT_IMM, 1, TMP2, 0); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7670 | OP2U(SLJIT_AND | SLJIT_SET_Z, TMP1, 0, TMP2, 0); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7671 | add_jump(compiler, &found, JUMP(SLJIT_NOT_ZERO)); |
| 7672 | } |
| 7673 | |
| 7674 | add_jump(compiler, backtracks, JUMP(SLJIT_JUMP)); |
| 7675 | JUMPHERE(jump); |
| 7676 | |
| 7677 | cc += 32 / sizeof(PCRE2_UCHAR); |
| 7678 | } |
| 7679 | else |
| 7680 | { |
| 7681 | OP2(SLJIT_SUB, TMP2, 0, TMP1, 0, SLJIT_IMM, min); |
| 7682 | add_jump(compiler, (cc[-1] & XCL_NOT) == 0 ? backtracks : &found, CMP(SLJIT_GREATER, TMP2, 0, SLJIT_IMM, max - min)); |
| 7683 | } |
| 7684 | } |
| 7685 | else if ((cc[-1] & XCL_MAP) != 0) |
| 7686 | { |
| 7687 | OP1(SLJIT_MOV, RETURN_ADDR, 0, TMP1, 0); |
| 7688 | #ifdef SUPPORT_UNICODE |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7689 | unicode_status |= XCLASS_CHAR_SAVED; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7690 | #endif /* SUPPORT_UNICODE */ |
| 7691 | if (!optimize_class(common, (const sljit_u8 *)cc, FALSE, TRUE, list)) |
| 7692 | { |
| 7693 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 7694 | jump = NULL; |
| 7695 | if (common->utf) |
| 7696 | #endif /* PCRE2_CODE_UNIT_WIDTH == 8 */ |
| 7697 | jump = CMP(SLJIT_GREATER, TMP1, 0, SLJIT_IMM, 255); |
| 7698 | |
| 7699 | OP2(SLJIT_AND, TMP2, 0, TMP1, 0, SLJIT_IMM, 0x7); |
| 7700 | OP2(SLJIT_LSHR, TMP1, 0, TMP1, 0, SLJIT_IMM, 3); |
| 7701 | OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)cc); |
| 7702 | OP2(SLJIT_SHL, TMP2, 0, SLJIT_IMM, 1, TMP2, 0); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7703 | OP2U(SLJIT_AND | SLJIT_SET_Z, TMP1, 0, TMP2, 0); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7704 | add_jump(compiler, list, JUMP(SLJIT_NOT_ZERO)); |
| 7705 | |
| 7706 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 7707 | if (common->utf) |
| 7708 | #endif /* PCRE2_CODE_UNIT_WIDTH == 8 */ |
| 7709 | JUMPHERE(jump); |
| 7710 | } |
| 7711 | |
| 7712 | OP1(SLJIT_MOV, TMP1, 0, RETURN_ADDR, 0); |
| 7713 | cc += 32 / sizeof(PCRE2_UCHAR); |
| 7714 | } |
| 7715 | |
| 7716 | #ifdef SUPPORT_UNICODE |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7717 | if (unicode_status & XCLASS_NEEDS_UCD) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7718 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7719 | if ((unicode_status & (XCLASS_SAVE_CHAR | XCLASS_CHAR_SAVED)) == XCLASS_SAVE_CHAR) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7720 | OP1(SLJIT_MOV, RETURN_ADDR, 0, TMP1, 0); |
| 7721 | |
| 7722 | #if PCRE2_CODE_UNIT_WIDTH == 32 |
| 7723 | if (!common->utf) |
| 7724 | { |
| 7725 | jump = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, MAX_UTF_CODE_POINT + 1); |
| 7726 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, UNASSIGNED_UTF_CHAR); |
| 7727 | JUMPHERE(jump); |
| 7728 | } |
| 7729 | #endif /* PCRE2_CODE_UNIT_WIDTH == 32 */ |
| 7730 | |
| 7731 | OP2(SLJIT_LSHR, TMP2, 0, TMP1, 0, SLJIT_IMM, UCD_BLOCK_SHIFT); |
| 7732 | OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 1); |
| 7733 | OP1(SLJIT_MOV_U16, TMP2, 0, SLJIT_MEM1(TMP2), (sljit_sw)PRIV(ucd_stage1)); |
| 7734 | OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, UCD_BLOCK_MASK); |
| 7735 | OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, UCD_BLOCK_SHIFT); |
| 7736 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, TMP2, 0); |
| 7737 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, (sljit_sw)PRIV(ucd_stage2)); |
| 7738 | OP1(SLJIT_MOV_U16, TMP2, 0, SLJIT_MEM2(TMP2, TMP1), 1); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7739 | OP2(SLJIT_SHL, TMP1, 0, TMP2, 0, SLJIT_IMM, 3); |
| 7740 | OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 2); |
| 7741 | OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, TMP1, 0); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7742 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7743 | ccbegin = cc; |
| 7744 | |
| 7745 | if (unicode_status & XCLASS_HAS_BIDICL) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7746 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7747 | OP1(SLJIT_MOV_U16, TMP1, 0, SLJIT_MEM1(TMP2), (sljit_sw)PRIV(ucd_records) + SLJIT_OFFSETOF(ucd_record, scriptx_bidiclass)); |
| 7748 | OP2(SLJIT_LSHR, TMP1, 0, TMP1, 0, SLJIT_IMM, UCD_BIDICLASS_SHIFT); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7749 | |
| 7750 | while (*cc != XCL_END) |
| 7751 | { |
| 7752 | if (*cc == XCL_SINGLE) |
| 7753 | { |
| 7754 | cc ++; |
| 7755 | GETCHARINCTEST(c, cc); |
| 7756 | } |
| 7757 | else if (*cc == XCL_RANGE) |
| 7758 | { |
| 7759 | cc ++; |
| 7760 | GETCHARINCTEST(c, cc); |
| 7761 | GETCHARINCTEST(c, cc); |
| 7762 | } |
| 7763 | else |
| 7764 | { |
| 7765 | SLJIT_ASSERT(*cc == XCL_PROP || *cc == XCL_NOTPROP); |
| 7766 | cc++; |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7767 | if (*cc == PT_BIDICL) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7768 | { |
| 7769 | compares--; |
| 7770 | invertcmp = (compares == 0 && list != backtracks); |
| 7771 | if (cc[-1] == XCL_NOTPROP) |
| 7772 | invertcmp ^= 0x1; |
| 7773 | jump = CMP(SLJIT_EQUAL ^ invertcmp, TMP1, 0, SLJIT_IMM, (int)cc[1]); |
| 7774 | add_jump(compiler, compares > 0 ? list : backtracks, jump); |
| 7775 | } |
| 7776 | cc += 2; |
| 7777 | } |
| 7778 | } |
| 7779 | |
| 7780 | cc = ccbegin; |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7781 | } |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7782 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7783 | if (unicode_status & XCLASS_HAS_BOOL) |
| 7784 | { |
| 7785 | OP1(SLJIT_MOV_U16, TMP1, 0, SLJIT_MEM1(TMP2), (sljit_sw)PRIV(ucd_records) + SLJIT_OFFSETOF(ucd_record, bprops)); |
| 7786 | OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, UCD_BPROPS_MASK); |
| 7787 | OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 2); |
| 7788 | |
| 7789 | while (*cc != XCL_END) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7790 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7791 | if (*cc == XCL_SINGLE) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7792 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7793 | cc ++; |
| 7794 | GETCHARINCTEST(c, cc); |
| 7795 | } |
| 7796 | else if (*cc == XCL_RANGE) |
| 7797 | { |
| 7798 | cc ++; |
| 7799 | GETCHARINCTEST(c, cc); |
| 7800 | GETCHARINCTEST(c, cc); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7801 | } |
| 7802 | else |
| 7803 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7804 | SLJIT_ASSERT(*cc == XCL_PROP || *cc == XCL_NOTPROP); |
| 7805 | cc++; |
| 7806 | if (*cc == PT_BOOL) |
| 7807 | { |
| 7808 | compares--; |
| 7809 | invertcmp = (compares == 0 && list != backtracks); |
| 7810 | if (cc[-1] == XCL_NOTPROP) |
| 7811 | invertcmp ^= 0x1; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7812 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7813 | OP2U(SLJIT_AND32 | SLJIT_SET_Z, SLJIT_MEM1(TMP1), (sljit_sw)(PRIV(ucd_boolprop_sets) + (cc[1] >> 5)), SLJIT_IMM, (sljit_sw)1 << (cc[1] & 0x1f)); |
| 7814 | add_jump(compiler, compares > 0 ? list : backtracks, JUMP(SLJIT_NOT_ZERO ^ invertcmp)); |
| 7815 | } |
| 7816 | cc += 2; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7817 | } |
| 7818 | } |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7819 | |
| 7820 | cc = ccbegin; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7821 | } |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7822 | |
| 7823 | if (unicode_status & XCLASS_HAS_SCRIPT) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7824 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7825 | OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP2), (sljit_sw)PRIV(ucd_records) + SLJIT_OFFSETOF(ucd_record, script)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7826 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7827 | while (*cc != XCL_END) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7828 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7829 | if (*cc == XCL_SINGLE) |
| 7830 | { |
| 7831 | cc ++; |
| 7832 | GETCHARINCTEST(c, cc); |
| 7833 | } |
| 7834 | else if (*cc == XCL_RANGE) |
| 7835 | { |
| 7836 | cc ++; |
| 7837 | GETCHARINCTEST(c, cc); |
| 7838 | GETCHARINCTEST(c, cc); |
| 7839 | } |
| 7840 | else |
| 7841 | { |
| 7842 | SLJIT_ASSERT(*cc == XCL_PROP || *cc == XCL_NOTPROP); |
| 7843 | cc++; |
| 7844 | switch (*cc) |
| 7845 | { |
| 7846 | case PT_SCX: |
| 7847 | if (cc[-1] == XCL_NOTPROP) |
| 7848 | break; |
| 7849 | /* Fall through */ |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7850 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7851 | case PT_SC: |
| 7852 | compares--; |
| 7853 | invertcmp = (compares == 0 && list != backtracks); |
| 7854 | if (cc[-1] == XCL_NOTPROP) |
| 7855 | invertcmp ^= 0x1; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7856 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7857 | add_jump(compiler, compares > 0 ? list : backtracks, CMP(SLJIT_EQUAL ^ invertcmp, TMP1, 0, SLJIT_IMM, (int)cc[1])); |
| 7858 | } |
| 7859 | cc += 2; |
| 7860 | } |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7861 | } |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7862 | |
| 7863 | cc = ccbegin; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7864 | } |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7865 | |
| 7866 | if (unicode_status & XCLASS_HAS_SCRIPT_EXTENSION) |
| 7867 | { |
| 7868 | OP1(SLJIT_MOV_U16, TMP1, 0, SLJIT_MEM1(TMP2), (sljit_sw)PRIV(ucd_records) + SLJIT_OFFSETOF(ucd_record, scriptx_bidiclass)); |
| 7869 | OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, UCD_SCRIPTX_MASK); |
| 7870 | OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 2); |
| 7871 | |
| 7872 | if (unicode_status & XCLASS_SCRIPT_EXTENSION_NOTPROP) |
| 7873 | { |
| 7874 | if (unicode_status & XCLASS_HAS_TYPE) |
| 7875 | { |
| 7876 | if (unicode_status & XCLASS_SAVE_CHAR) |
| 7877 | { |
| 7878 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS0, TMP2, 0); |
| 7879 | unicode_status |= XCLASS_SCRIPT_EXTENSION_RESTORE_LOCALS0; |
| 7880 | } |
| 7881 | else |
| 7882 | { |
| 7883 | OP1(SLJIT_MOV, RETURN_ADDR, 0, TMP2, 0); |
| 7884 | unicode_status |= XCLASS_SCRIPT_EXTENSION_RESTORE_RETURN_ADDR; |
| 7885 | } |
| 7886 | } |
| 7887 | OP1(SLJIT_MOV_U8, TMP2, 0, SLJIT_MEM1(TMP2), (sljit_sw)PRIV(ucd_records) + SLJIT_OFFSETOF(ucd_record, script)); |
| 7888 | } |
| 7889 | |
| 7890 | while (*cc != XCL_END) |
| 7891 | { |
| 7892 | if (*cc == XCL_SINGLE) |
| 7893 | { |
| 7894 | cc ++; |
| 7895 | GETCHARINCTEST(c, cc); |
| 7896 | } |
| 7897 | else if (*cc == XCL_RANGE) |
| 7898 | { |
| 7899 | cc ++; |
| 7900 | GETCHARINCTEST(c, cc); |
| 7901 | GETCHARINCTEST(c, cc); |
| 7902 | } |
| 7903 | else |
| 7904 | { |
| 7905 | SLJIT_ASSERT(*cc == XCL_PROP || *cc == XCL_NOTPROP); |
| 7906 | cc++; |
| 7907 | if (*cc == PT_SCX) |
| 7908 | { |
| 7909 | compares--; |
| 7910 | invertcmp = (compares == 0 && list != backtracks); |
| 7911 | |
| 7912 | jump = NULL; |
| 7913 | if (cc[-1] == XCL_NOTPROP) |
| 7914 | { |
| 7915 | jump = CMP(SLJIT_EQUAL, TMP2, 0, SLJIT_IMM, (int)cc[1]); |
| 7916 | if (invertcmp) |
| 7917 | { |
| 7918 | add_jump(compiler, backtracks, jump); |
| 7919 | jump = NULL; |
| 7920 | } |
| 7921 | invertcmp ^= 0x1; |
| 7922 | } |
| 7923 | |
| 7924 | OP2U(SLJIT_AND32 | SLJIT_SET_Z, SLJIT_MEM1(TMP1), (sljit_sw)(PRIV(ucd_script_sets) + (cc[1] >> 5)), SLJIT_IMM, (sljit_sw)1 << (cc[1] & 0x1f)); |
| 7925 | add_jump(compiler, compares > 0 ? list : backtracks, JUMP(SLJIT_NOT_ZERO ^ invertcmp)); |
| 7926 | |
| 7927 | if (jump != NULL) |
| 7928 | JUMPHERE(jump); |
| 7929 | } |
| 7930 | cc += 2; |
| 7931 | } |
| 7932 | } |
| 7933 | |
| 7934 | if (unicode_status & XCLASS_SCRIPT_EXTENSION_RESTORE_LOCALS0) |
| 7935 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), LOCALS0); |
| 7936 | else if (unicode_status & XCLASS_SCRIPT_EXTENSION_RESTORE_RETURN_ADDR) |
| 7937 | OP1(SLJIT_MOV, TMP2, 0, RETURN_ADDR, 0); |
| 7938 | cc = ccbegin; |
| 7939 | } |
| 7940 | |
| 7941 | if (unicode_status & XCLASS_SAVE_CHAR) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7942 | OP1(SLJIT_MOV, TMP1, 0, RETURN_ADDR, 0); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7943 | |
| 7944 | if (unicode_status & XCLASS_HAS_TYPE) |
| 7945 | { |
| 7946 | if (unicode_status & XCLASS_SAVE_CHAR) |
| 7947 | typereg = RETURN_ADDR; |
| 7948 | |
| 7949 | OP1(SLJIT_MOV_U8, typereg, 0, SLJIT_MEM1(TMP2), (sljit_sw)PRIV(ucd_records) + SLJIT_OFFSETOF(ucd_record, chartype)); |
| 7950 | } |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7951 | } |
| 7952 | #endif /* SUPPORT_UNICODE */ |
| 7953 | |
| 7954 | /* Generating code. */ |
| 7955 | charoffset = 0; |
| 7956 | numberofcmps = 0; |
| 7957 | #ifdef SUPPORT_UNICODE |
| 7958 | typeoffset = 0; |
| 7959 | #endif /* SUPPORT_UNICODE */ |
| 7960 | |
| 7961 | while (*cc != XCL_END) |
| 7962 | { |
| 7963 | compares--; |
| 7964 | invertcmp = (compares == 0 && list != backtracks); |
| 7965 | jump = NULL; |
| 7966 | |
| 7967 | if (*cc == XCL_SINGLE) |
| 7968 | { |
| 7969 | cc ++; |
| 7970 | GETCHARINCTEST(c, cc); |
| 7971 | |
| 7972 | if (numberofcmps < 3 && (*cc == XCL_SINGLE || *cc == XCL_RANGE)) |
| 7973 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7974 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, (sljit_sw)(c - charoffset)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7975 | OP_FLAGS(numberofcmps == 0 ? SLJIT_MOV : SLJIT_OR, TMP2, 0, SLJIT_EQUAL); |
| 7976 | numberofcmps++; |
| 7977 | } |
| 7978 | else if (numberofcmps > 0) |
| 7979 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 7980 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, (sljit_sw)(c - charoffset)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 7981 | OP_FLAGS(SLJIT_OR | SLJIT_SET_Z, TMP2, 0, SLJIT_EQUAL); |
| 7982 | jump = JUMP(SLJIT_NOT_ZERO ^ invertcmp); |
| 7983 | numberofcmps = 0; |
| 7984 | } |
| 7985 | else |
| 7986 | { |
| 7987 | jump = CMP(SLJIT_EQUAL ^ invertcmp, TMP1, 0, SLJIT_IMM, (sljit_sw)(c - charoffset)); |
| 7988 | numberofcmps = 0; |
| 7989 | } |
| 7990 | } |
| 7991 | else if (*cc == XCL_RANGE) |
| 7992 | { |
| 7993 | cc ++; |
| 7994 | GETCHARINCTEST(c, cc); |
| 7995 | SET_CHAR_OFFSET(c); |
| 7996 | GETCHARINCTEST(c, cc); |
| 7997 | |
| 7998 | if (numberofcmps < 3 && (*cc == XCL_SINGLE || *cc == XCL_RANGE)) |
| 7999 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8000 | OP2U(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, TMP1, 0, SLJIT_IMM, (sljit_sw)(c - charoffset)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8001 | OP_FLAGS(numberofcmps == 0 ? SLJIT_MOV : SLJIT_OR, TMP2, 0, SLJIT_LESS_EQUAL); |
| 8002 | numberofcmps++; |
| 8003 | } |
| 8004 | else if (numberofcmps > 0) |
| 8005 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8006 | OP2U(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, TMP1, 0, SLJIT_IMM, (sljit_sw)(c - charoffset)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8007 | OP_FLAGS(SLJIT_OR | SLJIT_SET_Z, TMP2, 0, SLJIT_LESS_EQUAL); |
| 8008 | jump = JUMP(SLJIT_NOT_ZERO ^ invertcmp); |
| 8009 | numberofcmps = 0; |
| 8010 | } |
| 8011 | else |
| 8012 | { |
| 8013 | jump = CMP(SLJIT_LESS_EQUAL ^ invertcmp, TMP1, 0, SLJIT_IMM, (sljit_sw)(c - charoffset)); |
| 8014 | numberofcmps = 0; |
| 8015 | } |
| 8016 | } |
| 8017 | #ifdef SUPPORT_UNICODE |
| 8018 | else |
| 8019 | { |
| 8020 | SLJIT_ASSERT(*cc == XCL_PROP || *cc == XCL_NOTPROP); |
| 8021 | if (*cc == XCL_NOTPROP) |
| 8022 | invertcmp ^= 0x1; |
| 8023 | cc++; |
| 8024 | switch(*cc) |
| 8025 | { |
| 8026 | case PT_ANY: |
| 8027 | if (!invertcmp) |
| 8028 | jump = JUMP(SLJIT_JUMP); |
| 8029 | break; |
| 8030 | |
| 8031 | case PT_LAMP: |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8032 | OP2U(SLJIT_SUB | SLJIT_SET_Z, typereg, 0, SLJIT_IMM, ucp_Lu - typeoffset); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8033 | OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_EQUAL); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8034 | OP2U(SLJIT_SUB | SLJIT_SET_Z, typereg, 0, SLJIT_IMM, ucp_Ll - typeoffset); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8035 | OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8036 | OP2U(SLJIT_SUB | SLJIT_SET_Z, typereg, 0, SLJIT_IMM, ucp_Lt - typeoffset); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8037 | OP_FLAGS(SLJIT_OR | SLJIT_SET_Z, TMP2, 0, SLJIT_EQUAL); |
| 8038 | jump = JUMP(SLJIT_NOT_ZERO ^ invertcmp); |
| 8039 | break; |
| 8040 | |
| 8041 | case PT_GC: |
| 8042 | c = PRIV(ucp_typerange)[(int)cc[1] * 2]; |
| 8043 | SET_TYPE_OFFSET(c); |
| 8044 | jump = CMP(SLJIT_LESS_EQUAL ^ invertcmp, typereg, 0, SLJIT_IMM, PRIV(ucp_typerange)[(int)cc[1] * 2 + 1] - c); |
| 8045 | break; |
| 8046 | |
| 8047 | case PT_PC: |
| 8048 | jump = CMP(SLJIT_EQUAL ^ invertcmp, typereg, 0, SLJIT_IMM, (int)cc[1] - typeoffset); |
| 8049 | break; |
| 8050 | |
| 8051 | case PT_SC: |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8052 | case PT_SCX: |
| 8053 | case PT_BOOL: |
| 8054 | case PT_BIDICL: |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8055 | compares++; |
| 8056 | /* Do nothing. */ |
| 8057 | break; |
| 8058 | |
| 8059 | case PT_SPACE: |
| 8060 | case PT_PXSPACE: |
| 8061 | SET_CHAR_OFFSET(9); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8062 | OP2U(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, TMP1, 0, SLJIT_IMM, 0xd - 0x9); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8063 | OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_LESS_EQUAL); |
| 8064 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8065 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, 0x85 - 0x9); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8066 | OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL); |
| 8067 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8068 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, 0x180e - 0x9); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8069 | OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL); |
| 8070 | |
| 8071 | SET_TYPE_OFFSET(ucp_Zl); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8072 | OP2U(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, typereg, 0, SLJIT_IMM, ucp_Zs - ucp_Zl); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8073 | OP_FLAGS(SLJIT_OR | SLJIT_SET_Z, TMP2, 0, SLJIT_LESS_EQUAL); |
| 8074 | jump = JUMP(SLJIT_NOT_ZERO ^ invertcmp); |
| 8075 | break; |
| 8076 | |
| 8077 | case PT_WORD: |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8078 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, (sljit_sw)(CHAR_UNDERSCORE - charoffset)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8079 | OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_EQUAL); |
| 8080 | /* Fall through. */ |
| 8081 | |
| 8082 | case PT_ALNUM: |
| 8083 | SET_TYPE_OFFSET(ucp_Ll); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8084 | OP2U(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, typereg, 0, SLJIT_IMM, ucp_Lu - ucp_Ll); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8085 | OP_FLAGS((*cc == PT_ALNUM) ? SLJIT_MOV : SLJIT_OR, TMP2, 0, SLJIT_LESS_EQUAL); |
| 8086 | SET_TYPE_OFFSET(ucp_Nd); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8087 | OP2U(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, typereg, 0, SLJIT_IMM, ucp_No - ucp_Nd); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8088 | OP_FLAGS(SLJIT_OR | SLJIT_SET_Z, TMP2, 0, SLJIT_LESS_EQUAL); |
| 8089 | jump = JUMP(SLJIT_NOT_ZERO ^ invertcmp); |
| 8090 | break; |
| 8091 | |
| 8092 | case PT_CLIST: |
| 8093 | other_cases = PRIV(ucd_caseless_sets) + cc[1]; |
| 8094 | |
| 8095 | /* At least three characters are required. |
| 8096 | Otherwise this case would be handled by the normal code path. */ |
| 8097 | SLJIT_ASSERT(other_cases[0] != NOTACHAR && other_cases[1] != NOTACHAR && other_cases[2] != NOTACHAR); |
| 8098 | SLJIT_ASSERT(other_cases[0] < other_cases[1] && other_cases[1] < other_cases[2]); |
| 8099 | |
| 8100 | /* Optimizing character pairs, if their difference is power of 2. */ |
| 8101 | if (is_powerof2(other_cases[1] ^ other_cases[0])) |
| 8102 | { |
| 8103 | if (charoffset == 0) |
| 8104 | OP2(SLJIT_OR, TMP2, 0, TMP1, 0, SLJIT_IMM, other_cases[1] ^ other_cases[0]); |
| 8105 | else |
| 8106 | { |
| 8107 | OP2(SLJIT_ADD, TMP2, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)charoffset); |
| 8108 | OP2(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_IMM, other_cases[1] ^ other_cases[0]); |
| 8109 | } |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8110 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP2, 0, SLJIT_IMM, other_cases[1]); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8111 | OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_EQUAL); |
| 8112 | other_cases += 2; |
| 8113 | } |
| 8114 | else if (is_powerof2(other_cases[2] ^ other_cases[1])) |
| 8115 | { |
| 8116 | if (charoffset == 0) |
| 8117 | OP2(SLJIT_OR, TMP2, 0, TMP1, 0, SLJIT_IMM, other_cases[2] ^ other_cases[1]); |
| 8118 | else |
| 8119 | { |
| 8120 | OP2(SLJIT_ADD, TMP2, 0, TMP1, 0, SLJIT_IMM, (sljit_sw)charoffset); |
| 8121 | OP2(SLJIT_OR, TMP2, 0, TMP2, 0, SLJIT_IMM, other_cases[1] ^ other_cases[0]); |
| 8122 | } |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8123 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP2, 0, SLJIT_IMM, other_cases[2]); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8124 | OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_EQUAL); |
| 8125 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8126 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, (sljit_sw)(other_cases[0] - charoffset)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8127 | OP_FLAGS(SLJIT_OR | ((other_cases[3] == NOTACHAR) ? SLJIT_SET_Z : 0), TMP2, 0, SLJIT_EQUAL); |
| 8128 | |
| 8129 | other_cases += 3; |
| 8130 | } |
| 8131 | else |
| 8132 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8133 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, (sljit_sw)(*other_cases++ - charoffset)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8134 | OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_EQUAL); |
| 8135 | } |
| 8136 | |
| 8137 | while (*other_cases != NOTACHAR) |
| 8138 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8139 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, (sljit_sw)(*other_cases++ - charoffset)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8140 | OP_FLAGS(SLJIT_OR | ((*other_cases == NOTACHAR) ? SLJIT_SET_Z : 0), TMP2, 0, SLJIT_EQUAL); |
| 8141 | } |
| 8142 | jump = JUMP(SLJIT_NOT_ZERO ^ invertcmp); |
| 8143 | break; |
| 8144 | |
| 8145 | case PT_UCNC: |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8146 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, (sljit_sw)(CHAR_DOLLAR_SIGN - charoffset)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8147 | OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_EQUAL); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8148 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, (sljit_sw)(CHAR_COMMERCIAL_AT - charoffset)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8149 | OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8150 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, (sljit_sw)(CHAR_GRAVE_ACCENT - charoffset)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8151 | OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL); |
| 8152 | |
| 8153 | SET_CHAR_OFFSET(0xa0); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8154 | OP2U(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, TMP1, 0, SLJIT_IMM, (sljit_sw)(0xd7ff - charoffset)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8155 | OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_LESS_EQUAL); |
| 8156 | SET_CHAR_OFFSET(0); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8157 | OP2U(SLJIT_SUB | SLJIT_SET_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, 0xe000 - 0); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8158 | OP_FLAGS(SLJIT_OR | SLJIT_SET_Z, TMP2, 0, SLJIT_GREATER_EQUAL); |
| 8159 | jump = JUMP(SLJIT_NOT_ZERO ^ invertcmp); |
| 8160 | break; |
| 8161 | |
| 8162 | case PT_PXGRAPH: |
| 8163 | /* C and Z groups are the farthest two groups. */ |
| 8164 | SET_TYPE_OFFSET(ucp_Ll); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8165 | OP2U(SLJIT_SUB | SLJIT_SET_GREATER, typereg, 0, SLJIT_IMM, ucp_So - ucp_Ll); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8166 | OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_GREATER); |
| 8167 | |
| 8168 | jump = CMP(SLJIT_NOT_EQUAL, typereg, 0, SLJIT_IMM, ucp_Cf - ucp_Ll); |
| 8169 | |
| 8170 | /* In case of ucp_Cf, we overwrite the result. */ |
| 8171 | SET_CHAR_OFFSET(0x2066); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8172 | OP2U(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, TMP1, 0, SLJIT_IMM, 0x2069 - 0x2066); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8173 | OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_LESS_EQUAL); |
| 8174 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8175 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, 0x061c - 0x2066); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8176 | OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL); |
| 8177 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8178 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, 0x180e - 0x2066); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8179 | OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL); |
| 8180 | |
| 8181 | JUMPHERE(jump); |
| 8182 | jump = CMP(SLJIT_ZERO ^ invertcmp, TMP2, 0, SLJIT_IMM, 0); |
| 8183 | break; |
| 8184 | |
| 8185 | case PT_PXPRINT: |
| 8186 | /* C and Z groups are the farthest two groups. */ |
| 8187 | SET_TYPE_OFFSET(ucp_Ll); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8188 | OP2U(SLJIT_SUB | SLJIT_SET_GREATER, typereg, 0, SLJIT_IMM, ucp_So - ucp_Ll); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8189 | OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_GREATER); |
| 8190 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8191 | OP2U(SLJIT_SUB | SLJIT_SET_Z, typereg, 0, SLJIT_IMM, ucp_Zs - ucp_Ll); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8192 | OP_FLAGS(SLJIT_AND, TMP2, 0, SLJIT_NOT_EQUAL); |
| 8193 | |
| 8194 | jump = CMP(SLJIT_NOT_EQUAL, typereg, 0, SLJIT_IMM, ucp_Cf - ucp_Ll); |
| 8195 | |
| 8196 | /* In case of ucp_Cf, we overwrite the result. */ |
| 8197 | SET_CHAR_OFFSET(0x2066); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8198 | OP2U(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, TMP1, 0, SLJIT_IMM, 0x2069 - 0x2066); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8199 | OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_LESS_EQUAL); |
| 8200 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8201 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, 0x061c - 0x2066); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8202 | OP_FLAGS(SLJIT_OR, TMP2, 0, SLJIT_EQUAL); |
| 8203 | |
| 8204 | JUMPHERE(jump); |
| 8205 | jump = CMP(SLJIT_ZERO ^ invertcmp, TMP2, 0, SLJIT_IMM, 0); |
| 8206 | break; |
| 8207 | |
| 8208 | case PT_PXPUNCT: |
| 8209 | SET_TYPE_OFFSET(ucp_Sc); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8210 | OP2U(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, typereg, 0, SLJIT_IMM, ucp_So - ucp_Sc); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8211 | OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_LESS_EQUAL); |
| 8212 | |
| 8213 | SET_CHAR_OFFSET(0); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8214 | OP2U(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, TMP1, 0, SLJIT_IMM, 0x7f); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8215 | OP_FLAGS(SLJIT_AND, TMP2, 0, SLJIT_LESS_EQUAL); |
| 8216 | |
| 8217 | SET_TYPE_OFFSET(ucp_Pc); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8218 | OP2U(SLJIT_SUB | SLJIT_SET_LESS_EQUAL, typereg, 0, SLJIT_IMM, ucp_Ps - ucp_Pc); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8219 | OP_FLAGS(SLJIT_OR | SLJIT_SET_Z, TMP2, 0, SLJIT_LESS_EQUAL); |
| 8220 | jump = JUMP(SLJIT_NOT_ZERO ^ invertcmp); |
| 8221 | break; |
| 8222 | |
| 8223 | default: |
| 8224 | SLJIT_UNREACHABLE(); |
| 8225 | break; |
| 8226 | } |
| 8227 | cc += 2; |
| 8228 | } |
| 8229 | #endif /* SUPPORT_UNICODE */ |
| 8230 | |
| 8231 | if (jump != NULL) |
| 8232 | add_jump(compiler, compares > 0 ? list : backtracks, jump); |
| 8233 | } |
| 8234 | |
| 8235 | if (found != NULL) |
| 8236 | set_jumps(found, LABEL()); |
| 8237 | } |
| 8238 | |
| 8239 | #undef SET_TYPE_OFFSET |
| 8240 | #undef SET_CHAR_OFFSET |
| 8241 | |
| 8242 | #endif |
| 8243 | |
| 8244 | static PCRE2_SPTR compile_simple_assertion_matchingpath(compiler_common *common, PCRE2_UCHAR type, PCRE2_SPTR cc, jump_list **backtracks) |
| 8245 | { |
| 8246 | DEFINE_COMPILER; |
| 8247 | int length; |
| 8248 | struct sljit_jump *jump[4]; |
| 8249 | #ifdef SUPPORT_UNICODE |
| 8250 | struct sljit_label *label; |
| 8251 | #endif /* SUPPORT_UNICODE */ |
| 8252 | |
| 8253 | switch(type) |
| 8254 | { |
| 8255 | case OP_SOD: |
| 8256 | if (HAS_VIRTUAL_REGISTERS) |
| 8257 | { |
| 8258 | OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0); |
| 8259 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, begin)); |
| 8260 | } |
| 8261 | else |
| 8262 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(ARGUMENTS), SLJIT_OFFSETOF(jit_arguments, begin)); |
| 8263 | add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, STR_PTR, 0, TMP1, 0)); |
| 8264 | return cc; |
| 8265 | |
| 8266 | case OP_SOM: |
| 8267 | if (HAS_VIRTUAL_REGISTERS) |
| 8268 | { |
| 8269 | OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0); |
| 8270 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, str)); |
| 8271 | } |
| 8272 | else |
| 8273 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(ARGUMENTS), SLJIT_OFFSETOF(jit_arguments, str)); |
| 8274 | add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, STR_PTR, 0, TMP1, 0)); |
| 8275 | return cc; |
| 8276 | |
| 8277 | case OP_NOT_WORD_BOUNDARY: |
| 8278 | case OP_WORD_BOUNDARY: |
| 8279 | add_jump(compiler, &common->wordboundary, JUMP(SLJIT_FAST_CALL)); |
| 8280 | #ifdef SUPPORT_UNICODE |
| 8281 | if (common->invalid_utf) |
| 8282 | { |
| 8283 | add_jump(compiler, backtracks, CMP((type == OP_NOT_WORD_BOUNDARY) ? SLJIT_NOT_EQUAL : SLJIT_SIG_LESS_EQUAL, TMP2, 0, SLJIT_IMM, 0)); |
| 8284 | return cc; |
| 8285 | } |
| 8286 | #endif /* SUPPORT_UNICODE */ |
| 8287 | sljit_set_current_flags(compiler, SLJIT_SET_Z); |
| 8288 | add_jump(compiler, backtracks, JUMP(type == OP_NOT_WORD_BOUNDARY ? SLJIT_NOT_ZERO : SLJIT_ZERO)); |
| 8289 | return cc; |
| 8290 | |
| 8291 | case OP_EODN: |
| 8292 | /* Requires rather complex checks. */ |
| 8293 | jump[0] = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0); |
| 8294 | if (common->nltype == NLTYPE_FIXED && common->newline > 255) |
| 8295 | { |
| 8296 | OP2(SLJIT_ADD, TMP2, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2)); |
| 8297 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); |
| 8298 | if (common->mode == PCRE2_JIT_COMPLETE) |
| 8299 | add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP2, 0, STR_END, 0)); |
| 8300 | else |
| 8301 | { |
| 8302 | jump[1] = CMP(SLJIT_EQUAL, TMP2, 0, STR_END, 0); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8303 | OP2U(SLJIT_SUB | SLJIT_SET_LESS, TMP2, 0, STR_END, 0); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8304 | OP_FLAGS(SLJIT_MOV, TMP2, 0, SLJIT_LESS); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8305 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8306 | OP_FLAGS(SLJIT_OR | SLJIT_SET_Z, TMP2, 0, SLJIT_NOT_EQUAL); |
| 8307 | add_jump(compiler, backtracks, JUMP(SLJIT_NOT_EQUAL)); |
| 8308 | check_partial(common, TRUE); |
| 8309 | add_jump(compiler, backtracks, JUMP(SLJIT_JUMP)); |
| 8310 | JUMPHERE(jump[1]); |
| 8311 | } |
| 8312 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1)); |
| 8313 | add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff)); |
| 8314 | add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP2, 0, SLJIT_IMM, common->newline & 0xff)); |
| 8315 | } |
| 8316 | else if (common->nltype == NLTYPE_FIXED) |
| 8317 | { |
| 8318 | OP2(SLJIT_ADD, TMP2, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 8319 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); |
| 8320 | add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP2, 0, STR_END, 0)); |
| 8321 | add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, common->newline)); |
| 8322 | } |
| 8323 | else |
| 8324 | { |
| 8325 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); |
| 8326 | jump[1] = CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_CR); |
| 8327 | OP2(SLJIT_ADD, TMP2, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2)); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8328 | OP2U(SLJIT_SUB | SLJIT_SET_Z | SLJIT_SET_GREATER, TMP2, 0, STR_END, 0); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8329 | jump[2] = JUMP(SLJIT_GREATER); |
| 8330 | add_jump(compiler, backtracks, JUMP(SLJIT_NOT_EQUAL) /* LESS */); |
| 8331 | /* Equal. */ |
| 8332 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1)); |
| 8333 | jump[3] = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_NL); |
| 8334 | add_jump(compiler, backtracks, JUMP(SLJIT_JUMP)); |
| 8335 | |
| 8336 | JUMPHERE(jump[1]); |
| 8337 | if (common->nltype == NLTYPE_ANYCRLF) |
| 8338 | { |
| 8339 | OP2(SLJIT_ADD, TMP2, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 8340 | add_jump(compiler, backtracks, CMP(SLJIT_LESS, TMP2, 0, STR_END, 0)); |
| 8341 | add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_NL)); |
| 8342 | } |
| 8343 | else |
| 8344 | { |
| 8345 | OP1(SLJIT_MOV, TMP3, 0, STR_PTR, 0); |
| 8346 | read_char(common, common->nlmin, common->nlmax, backtracks, READ_CHAR_UPDATE_STR_PTR); |
| 8347 | add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, STR_PTR, 0, STR_END, 0)); |
| 8348 | add_jump(compiler, &common->anynewline, JUMP(SLJIT_FAST_CALL)); |
| 8349 | sljit_set_current_flags(compiler, SLJIT_SET_Z); |
| 8350 | add_jump(compiler, backtracks, JUMP(SLJIT_ZERO)); |
| 8351 | OP1(SLJIT_MOV, STR_PTR, 0, TMP3, 0); |
| 8352 | } |
| 8353 | JUMPHERE(jump[2]); |
| 8354 | JUMPHERE(jump[3]); |
| 8355 | } |
| 8356 | JUMPHERE(jump[0]); |
| 8357 | if (common->mode != PCRE2_JIT_COMPLETE) |
| 8358 | check_partial(common, TRUE); |
| 8359 | return cc; |
| 8360 | |
| 8361 | case OP_EOD: |
| 8362 | add_jump(compiler, backtracks, CMP(SLJIT_LESS, STR_PTR, 0, STR_END, 0)); |
| 8363 | if (common->mode != PCRE2_JIT_COMPLETE) |
| 8364 | check_partial(common, TRUE); |
| 8365 | return cc; |
| 8366 | |
| 8367 | case OP_DOLL: |
| 8368 | if (HAS_VIRTUAL_REGISTERS) |
| 8369 | { |
| 8370 | OP1(SLJIT_MOV, TMP2, 0, ARGUMENTS, 0); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8371 | OP2U(SLJIT_AND32 | SLJIT_SET_Z, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(jit_arguments, options), SLJIT_IMM, PCRE2_NOTEOL); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8372 | } |
| 8373 | else |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8374 | OP2U(SLJIT_AND32 | SLJIT_SET_Z, SLJIT_MEM1(ARGUMENTS), SLJIT_OFFSETOF(jit_arguments, options), SLJIT_IMM, PCRE2_NOTEOL); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8375 | add_jump(compiler, backtracks, JUMP(SLJIT_NOT_ZERO)); |
| 8376 | |
| 8377 | if (!common->endonly) |
| 8378 | compile_simple_assertion_matchingpath(common, OP_EODN, cc, backtracks); |
| 8379 | else |
| 8380 | { |
| 8381 | add_jump(compiler, backtracks, CMP(SLJIT_LESS, STR_PTR, 0, STR_END, 0)); |
| 8382 | check_partial(common, FALSE); |
| 8383 | } |
| 8384 | return cc; |
| 8385 | |
| 8386 | case OP_DOLLM: |
| 8387 | jump[1] = CMP(SLJIT_LESS, STR_PTR, 0, STR_END, 0); |
| 8388 | if (HAS_VIRTUAL_REGISTERS) |
| 8389 | { |
| 8390 | OP1(SLJIT_MOV, TMP2, 0, ARGUMENTS, 0); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8391 | OP2U(SLJIT_AND32 | SLJIT_SET_Z, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(jit_arguments, options), SLJIT_IMM, PCRE2_NOTEOL); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8392 | } |
| 8393 | else |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8394 | OP2U(SLJIT_AND32 | SLJIT_SET_Z, SLJIT_MEM1(ARGUMENTS), SLJIT_OFFSETOF(jit_arguments, options), SLJIT_IMM, PCRE2_NOTEOL); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8395 | add_jump(compiler, backtracks, JUMP(SLJIT_NOT_ZERO)); |
| 8396 | check_partial(common, FALSE); |
| 8397 | jump[0] = JUMP(SLJIT_JUMP); |
| 8398 | JUMPHERE(jump[1]); |
| 8399 | |
| 8400 | if (common->nltype == NLTYPE_FIXED && common->newline > 255) |
| 8401 | { |
| 8402 | OP2(SLJIT_ADD, TMP2, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2)); |
| 8403 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); |
| 8404 | if (common->mode == PCRE2_JIT_COMPLETE) |
| 8405 | add_jump(compiler, backtracks, CMP(SLJIT_GREATER, TMP2, 0, STR_END, 0)); |
| 8406 | else |
| 8407 | { |
| 8408 | jump[1] = CMP(SLJIT_LESS_EQUAL, TMP2, 0, STR_END, 0); |
| 8409 | /* STR_PTR = STR_END - IN_UCHARS(1) */ |
| 8410 | add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff)); |
| 8411 | check_partial(common, TRUE); |
| 8412 | add_jump(compiler, backtracks, JUMP(SLJIT_JUMP)); |
| 8413 | JUMPHERE(jump[1]); |
| 8414 | } |
| 8415 | |
| 8416 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(1)); |
| 8417 | add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff)); |
| 8418 | add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP2, 0, SLJIT_IMM, common->newline & 0xff)); |
| 8419 | } |
| 8420 | else |
| 8421 | { |
| 8422 | peek_char(common, common->nlmax, TMP3, 0, NULL); |
| 8423 | check_newlinechar(common, common->nltype, backtracks, FALSE); |
| 8424 | } |
| 8425 | JUMPHERE(jump[0]); |
| 8426 | return cc; |
| 8427 | |
| 8428 | case OP_CIRC: |
| 8429 | if (HAS_VIRTUAL_REGISTERS) |
| 8430 | { |
| 8431 | OP1(SLJIT_MOV, TMP2, 0, ARGUMENTS, 0); |
| 8432 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(jit_arguments, begin)); |
| 8433 | add_jump(compiler, backtracks, CMP(SLJIT_GREATER, STR_PTR, 0, TMP1, 0)); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8434 | OP2U(SLJIT_AND32 | SLJIT_SET_Z, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(jit_arguments, options), SLJIT_IMM, PCRE2_NOTBOL); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8435 | add_jump(compiler, backtracks, JUMP(SLJIT_NOT_ZERO)); |
| 8436 | } |
| 8437 | else |
| 8438 | { |
| 8439 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(ARGUMENTS), SLJIT_OFFSETOF(jit_arguments, begin)); |
| 8440 | add_jump(compiler, backtracks, CMP(SLJIT_GREATER, STR_PTR, 0, TMP1, 0)); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8441 | OP2U(SLJIT_AND32 | SLJIT_SET_Z, SLJIT_MEM1(ARGUMENTS), SLJIT_OFFSETOF(jit_arguments, options), SLJIT_IMM, PCRE2_NOTBOL); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8442 | add_jump(compiler, backtracks, JUMP(SLJIT_NOT_ZERO)); |
| 8443 | } |
| 8444 | return cc; |
| 8445 | |
| 8446 | case OP_CIRCM: |
| 8447 | /* TMP2 might be used by peek_char_back. */ |
| 8448 | if (HAS_VIRTUAL_REGISTERS) |
| 8449 | { |
| 8450 | OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0); |
| 8451 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, begin)); |
| 8452 | jump[1] = CMP(SLJIT_GREATER, STR_PTR, 0, TMP2, 0); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8453 | OP2U(SLJIT_AND32 | SLJIT_SET_Z, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, options), SLJIT_IMM, PCRE2_NOTBOL); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8454 | } |
| 8455 | else |
| 8456 | { |
| 8457 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(ARGUMENTS), SLJIT_OFFSETOF(jit_arguments, begin)); |
| 8458 | jump[1] = CMP(SLJIT_GREATER, STR_PTR, 0, TMP2, 0); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8459 | OP2U(SLJIT_AND32 | SLJIT_SET_Z, SLJIT_MEM1(ARGUMENTS), SLJIT_OFFSETOF(jit_arguments, options), SLJIT_IMM, PCRE2_NOTBOL); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8460 | } |
| 8461 | add_jump(compiler, backtracks, JUMP(SLJIT_NOT_ZERO)); |
| 8462 | jump[0] = JUMP(SLJIT_JUMP); |
| 8463 | JUMPHERE(jump[1]); |
| 8464 | |
| 8465 | if (!common->alt_circumflex) |
| 8466 | add_jump(compiler, backtracks, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); |
| 8467 | |
| 8468 | if (common->nltype == NLTYPE_FIXED && common->newline > 255) |
| 8469 | { |
| 8470 | OP2(SLJIT_SUB, TMP1, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(2)); |
| 8471 | add_jump(compiler, backtracks, CMP(SLJIT_LESS, TMP1, 0, TMP2, 0)); |
| 8472 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-2)); |
| 8473 | OP1(MOV_UCHAR, TMP2, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-1)); |
| 8474 | add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff)); |
| 8475 | add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP2, 0, SLJIT_IMM, common->newline & 0xff)); |
| 8476 | } |
| 8477 | else |
| 8478 | { |
| 8479 | peek_char_back(common, common->nlmax, backtracks); |
| 8480 | check_newlinechar(common, common->nltype, backtracks, FALSE); |
| 8481 | } |
| 8482 | JUMPHERE(jump[0]); |
| 8483 | return cc; |
| 8484 | |
| 8485 | case OP_REVERSE: |
| 8486 | length = GET(cc, 0); |
| 8487 | if (length == 0) |
| 8488 | return cc + LINK_SIZE; |
| 8489 | if (HAS_VIRTUAL_REGISTERS) |
| 8490 | { |
| 8491 | OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0); |
| 8492 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, begin)); |
| 8493 | } |
| 8494 | else |
| 8495 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(ARGUMENTS), SLJIT_OFFSETOF(jit_arguments, begin)); |
| 8496 | #ifdef SUPPORT_UNICODE |
| 8497 | if (common->utf) |
| 8498 | { |
| 8499 | OP1(SLJIT_MOV, TMP3, 0, SLJIT_IMM, length); |
| 8500 | label = LABEL(); |
| 8501 | add_jump(compiler, backtracks, CMP(SLJIT_LESS_EQUAL, STR_PTR, 0, TMP2, 0)); |
| 8502 | move_back(common, backtracks, FALSE); |
| 8503 | OP2(SLJIT_SUB | SLJIT_SET_Z, TMP3, 0, TMP3, 0, SLJIT_IMM, 1); |
| 8504 | JUMPTO(SLJIT_NOT_ZERO, label); |
| 8505 | } |
| 8506 | else |
| 8507 | #endif |
| 8508 | { |
| 8509 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(length)); |
| 8510 | add_jump(compiler, backtracks, CMP(SLJIT_LESS, STR_PTR, 0, TMP2, 0)); |
| 8511 | } |
| 8512 | check_start_used_ptr(common); |
| 8513 | return cc + LINK_SIZE; |
| 8514 | } |
| 8515 | SLJIT_UNREACHABLE(); |
| 8516 | return cc; |
| 8517 | } |
| 8518 | |
| 8519 | #ifdef SUPPORT_UNICODE |
| 8520 | |
| 8521 | #if PCRE2_CODE_UNIT_WIDTH != 32 |
| 8522 | |
| 8523 | static PCRE2_SPTR SLJIT_FUNC do_extuni_utf(jit_arguments *args, PCRE2_SPTR cc) |
| 8524 | { |
| 8525 | PCRE2_SPTR start_subject = args->begin; |
| 8526 | PCRE2_SPTR end_subject = args->end; |
| 8527 | int lgb, rgb, ricount; |
| 8528 | PCRE2_SPTR prevcc, endcc, bptr; |
| 8529 | BOOL first = TRUE; |
| 8530 | uint32_t c; |
| 8531 | |
| 8532 | prevcc = cc; |
| 8533 | endcc = NULL; |
| 8534 | do |
| 8535 | { |
| 8536 | GETCHARINC(c, cc); |
| 8537 | rgb = UCD_GRAPHBREAK(c); |
| 8538 | |
| 8539 | if (first) |
| 8540 | { |
| 8541 | lgb = rgb; |
| 8542 | endcc = cc; |
| 8543 | first = FALSE; |
| 8544 | continue; |
| 8545 | } |
| 8546 | |
| 8547 | if ((PRIV(ucp_gbtable)[lgb] & (1 << rgb)) == 0) |
| 8548 | break; |
| 8549 | |
| 8550 | /* Not breaking between Regional Indicators is allowed only if there |
| 8551 | are an even number of preceding RIs. */ |
| 8552 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8553 | if (lgb == ucp_gbRegional_Indicator && rgb == ucp_gbRegional_Indicator) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8554 | { |
| 8555 | ricount = 0; |
| 8556 | bptr = prevcc; |
| 8557 | |
| 8558 | /* bptr is pointing to the left-hand character */ |
| 8559 | while (bptr > start_subject) |
| 8560 | { |
| 8561 | bptr--; |
| 8562 | BACKCHAR(bptr); |
| 8563 | GETCHAR(c, bptr); |
| 8564 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8565 | if (UCD_GRAPHBREAK(c) != ucp_gbRegional_Indicator) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8566 | break; |
| 8567 | |
| 8568 | ricount++; |
| 8569 | } |
| 8570 | |
| 8571 | if ((ricount & 1) != 0) break; /* Grapheme break required */ |
| 8572 | } |
| 8573 | |
| 8574 | /* If Extend or ZWJ follows Extended_Pictographic, do not update lgb; this |
| 8575 | allows any number of them before a following Extended_Pictographic. */ |
| 8576 | |
| 8577 | if ((rgb != ucp_gbExtend && rgb != ucp_gbZWJ) || |
| 8578 | lgb != ucp_gbExtended_Pictographic) |
| 8579 | lgb = rgb; |
| 8580 | |
| 8581 | prevcc = endcc; |
| 8582 | endcc = cc; |
| 8583 | } |
| 8584 | while (cc < end_subject); |
| 8585 | |
| 8586 | return endcc; |
| 8587 | } |
| 8588 | |
| 8589 | #endif /* PCRE2_CODE_UNIT_WIDTH != 32 */ |
| 8590 | |
| 8591 | static PCRE2_SPTR SLJIT_FUNC do_extuni_utf_invalid(jit_arguments *args, PCRE2_SPTR cc) |
| 8592 | { |
| 8593 | PCRE2_SPTR start_subject = args->begin; |
| 8594 | PCRE2_SPTR end_subject = args->end; |
| 8595 | int lgb, rgb, ricount; |
| 8596 | PCRE2_SPTR prevcc, endcc, bptr; |
| 8597 | BOOL first = TRUE; |
| 8598 | uint32_t c; |
| 8599 | |
| 8600 | prevcc = cc; |
| 8601 | endcc = NULL; |
| 8602 | do |
| 8603 | { |
| 8604 | GETCHARINC_INVALID(c, cc, end_subject, break); |
| 8605 | rgb = UCD_GRAPHBREAK(c); |
| 8606 | |
| 8607 | if (first) |
| 8608 | { |
| 8609 | lgb = rgb; |
| 8610 | endcc = cc; |
| 8611 | first = FALSE; |
| 8612 | continue; |
| 8613 | } |
| 8614 | |
| 8615 | if ((PRIV(ucp_gbtable)[lgb] & (1 << rgb)) == 0) |
| 8616 | break; |
| 8617 | |
| 8618 | /* Not breaking between Regional Indicators is allowed only if there |
| 8619 | are an even number of preceding RIs. */ |
| 8620 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8621 | if (lgb == ucp_gbRegional_Indicator && rgb == ucp_gbRegional_Indicator) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8622 | { |
| 8623 | ricount = 0; |
| 8624 | bptr = prevcc; |
| 8625 | |
| 8626 | /* bptr is pointing to the left-hand character */ |
| 8627 | while (bptr > start_subject) |
| 8628 | { |
| 8629 | GETCHARBACK_INVALID(c, bptr, start_subject, break); |
| 8630 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8631 | if (UCD_GRAPHBREAK(c) != ucp_gbRegional_Indicator) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8632 | break; |
| 8633 | |
| 8634 | ricount++; |
| 8635 | } |
| 8636 | |
| 8637 | if ((ricount & 1) != 0) |
| 8638 | break; /* Grapheme break required */ |
| 8639 | } |
| 8640 | |
| 8641 | /* If Extend or ZWJ follows Extended_Pictographic, do not update lgb; this |
| 8642 | allows any number of them before a following Extended_Pictographic. */ |
| 8643 | |
| 8644 | if ((rgb != ucp_gbExtend && rgb != ucp_gbZWJ) || |
| 8645 | lgb != ucp_gbExtended_Pictographic) |
| 8646 | lgb = rgb; |
| 8647 | |
| 8648 | prevcc = endcc; |
| 8649 | endcc = cc; |
| 8650 | } |
| 8651 | while (cc < end_subject); |
| 8652 | |
| 8653 | return endcc; |
| 8654 | } |
| 8655 | |
| 8656 | static PCRE2_SPTR SLJIT_FUNC do_extuni_no_utf(jit_arguments *args, PCRE2_SPTR cc) |
| 8657 | { |
| 8658 | PCRE2_SPTR start_subject = args->begin; |
| 8659 | PCRE2_SPTR end_subject = args->end; |
| 8660 | int lgb, rgb, ricount; |
| 8661 | PCRE2_SPTR bptr; |
| 8662 | uint32_t c; |
| 8663 | |
| 8664 | /* Patch by PH */ |
| 8665 | /* GETCHARINC(c, cc); */ |
| 8666 | c = *cc++; |
| 8667 | |
| 8668 | #if PCRE2_CODE_UNIT_WIDTH == 32 |
| 8669 | if (c >= 0x110000) |
| 8670 | return NULL; |
| 8671 | #endif /* PCRE2_CODE_UNIT_WIDTH == 32 */ |
| 8672 | lgb = UCD_GRAPHBREAK(c); |
| 8673 | |
| 8674 | while (cc < end_subject) |
| 8675 | { |
| 8676 | c = *cc; |
| 8677 | #if PCRE2_CODE_UNIT_WIDTH == 32 |
| 8678 | if (c >= 0x110000) |
| 8679 | break; |
| 8680 | #endif /* PCRE2_CODE_UNIT_WIDTH == 32 */ |
| 8681 | rgb = UCD_GRAPHBREAK(c); |
| 8682 | |
| 8683 | if ((PRIV(ucp_gbtable)[lgb] & (1 << rgb)) == 0) |
| 8684 | break; |
| 8685 | |
| 8686 | /* Not breaking between Regional Indicators is allowed only if there |
| 8687 | are an even number of preceding RIs. */ |
| 8688 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8689 | if (lgb == ucp_gbRegional_Indicator && rgb == ucp_gbRegional_Indicator) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8690 | { |
| 8691 | ricount = 0; |
| 8692 | bptr = cc - 1; |
| 8693 | |
| 8694 | /* bptr is pointing to the left-hand character */ |
| 8695 | while (bptr > start_subject) |
| 8696 | { |
| 8697 | bptr--; |
| 8698 | c = *bptr; |
| 8699 | #if PCRE2_CODE_UNIT_WIDTH == 32 |
| 8700 | if (c >= 0x110000) |
| 8701 | break; |
| 8702 | #endif /* PCRE2_CODE_UNIT_WIDTH == 32 */ |
| 8703 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8704 | if (UCD_GRAPHBREAK(c) != ucp_gbRegional_Indicator) break; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8705 | |
| 8706 | ricount++; |
| 8707 | } |
| 8708 | |
| 8709 | if ((ricount & 1) != 0) |
| 8710 | break; /* Grapheme break required */ |
| 8711 | } |
| 8712 | |
| 8713 | /* If Extend or ZWJ follows Extended_Pictographic, do not update lgb; this |
| 8714 | allows any number of them before a following Extended_Pictographic. */ |
| 8715 | |
| 8716 | if ((rgb != ucp_gbExtend && rgb != ucp_gbZWJ) || |
| 8717 | lgb != ucp_gbExtended_Pictographic) |
| 8718 | lgb = rgb; |
| 8719 | |
| 8720 | cc++; |
| 8721 | } |
| 8722 | |
| 8723 | return cc; |
| 8724 | } |
| 8725 | |
| 8726 | #endif /* SUPPORT_UNICODE */ |
| 8727 | |
| 8728 | static PCRE2_SPTR compile_char1_matchingpath(compiler_common *common, PCRE2_UCHAR type, PCRE2_SPTR cc, jump_list **backtracks, BOOL check_str_ptr) |
| 8729 | { |
| 8730 | DEFINE_COMPILER; |
| 8731 | int length; |
| 8732 | unsigned int c, oc, bit; |
| 8733 | compare_context context; |
| 8734 | struct sljit_jump *jump[3]; |
| 8735 | jump_list *end_list; |
| 8736 | #ifdef SUPPORT_UNICODE |
| 8737 | PCRE2_UCHAR propdata[5]; |
| 8738 | #endif /* SUPPORT_UNICODE */ |
| 8739 | |
| 8740 | switch(type) |
| 8741 | { |
| 8742 | case OP_NOT_DIGIT: |
| 8743 | case OP_DIGIT: |
| 8744 | /* Digits are usually 0-9, so it is worth to optimize them. */ |
| 8745 | if (check_str_ptr) |
| 8746 | detect_partial_match(common, backtracks); |
| 8747 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8 |
| 8748 | if (common->utf && is_char7_bitset((const sljit_u8*)common->ctypes - cbit_length + cbit_digit, FALSE)) |
| 8749 | read_char7_type(common, backtracks, type == OP_NOT_DIGIT); |
| 8750 | else |
| 8751 | #endif |
| 8752 | read_char8_type(common, backtracks, type == OP_NOT_DIGIT); |
| 8753 | /* Flip the starting bit in the negative case. */ |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8754 | OP2U(SLJIT_AND | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, ctype_digit); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8755 | add_jump(compiler, backtracks, JUMP(type == OP_DIGIT ? SLJIT_ZERO : SLJIT_NOT_ZERO)); |
| 8756 | return cc; |
| 8757 | |
| 8758 | case OP_NOT_WHITESPACE: |
| 8759 | case OP_WHITESPACE: |
| 8760 | if (check_str_ptr) |
| 8761 | detect_partial_match(common, backtracks); |
| 8762 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8 |
| 8763 | if (common->utf && is_char7_bitset((const sljit_u8*)common->ctypes - cbit_length + cbit_space, FALSE)) |
| 8764 | read_char7_type(common, backtracks, type == OP_NOT_WHITESPACE); |
| 8765 | else |
| 8766 | #endif |
| 8767 | read_char8_type(common, backtracks, type == OP_NOT_WHITESPACE); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8768 | OP2U(SLJIT_AND | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, ctype_space); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8769 | add_jump(compiler, backtracks, JUMP(type == OP_WHITESPACE ? SLJIT_ZERO : SLJIT_NOT_ZERO)); |
| 8770 | return cc; |
| 8771 | |
| 8772 | case OP_NOT_WORDCHAR: |
| 8773 | case OP_WORDCHAR: |
| 8774 | if (check_str_ptr) |
| 8775 | detect_partial_match(common, backtracks); |
| 8776 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8 |
| 8777 | if (common->utf && is_char7_bitset((const sljit_u8*)common->ctypes - cbit_length + cbit_word, FALSE)) |
| 8778 | read_char7_type(common, backtracks, type == OP_NOT_WORDCHAR); |
| 8779 | else |
| 8780 | #endif |
| 8781 | read_char8_type(common, backtracks, type == OP_NOT_WORDCHAR); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8782 | OP2U(SLJIT_AND | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, ctype_word); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8783 | add_jump(compiler, backtracks, JUMP(type == OP_WORDCHAR ? SLJIT_ZERO : SLJIT_NOT_ZERO)); |
| 8784 | return cc; |
| 8785 | |
| 8786 | case OP_ANY: |
| 8787 | if (check_str_ptr) |
| 8788 | detect_partial_match(common, backtracks); |
| 8789 | read_char(common, common->nlmin, common->nlmax, backtracks, READ_CHAR_UPDATE_STR_PTR); |
| 8790 | if (common->nltype == NLTYPE_FIXED && common->newline > 255) |
| 8791 | { |
| 8792 | jump[0] = CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, (common->newline >> 8) & 0xff); |
| 8793 | end_list = NULL; |
| 8794 | if (common->mode != PCRE2_JIT_PARTIAL_HARD) |
| 8795 | add_jump(compiler, &end_list, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); |
| 8796 | else |
| 8797 | check_str_end(common, &end_list); |
| 8798 | |
| 8799 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0); |
| 8800 | add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, common->newline & 0xff)); |
| 8801 | set_jumps(end_list, LABEL()); |
| 8802 | JUMPHERE(jump[0]); |
| 8803 | } |
| 8804 | else |
| 8805 | check_newlinechar(common, common->nltype, backtracks, TRUE); |
| 8806 | return cc; |
| 8807 | |
| 8808 | case OP_ALLANY: |
| 8809 | if (check_str_ptr) |
| 8810 | detect_partial_match(common, backtracks); |
| 8811 | #ifdef SUPPORT_UNICODE |
| 8812 | if (common->utf) |
| 8813 | { |
| 8814 | if (common->invalid_utf) |
| 8815 | { |
| 8816 | read_char(common, 0, READ_CHAR_MAX, backtracks, READ_CHAR_UPDATE_STR_PTR); |
| 8817 | return cc; |
| 8818 | } |
| 8819 | |
| 8820 | #if PCRE2_CODE_UNIT_WIDTH == 8 || PCRE2_CODE_UNIT_WIDTH == 16 |
| 8821 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0); |
| 8822 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 8823 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 8824 | jump[0] = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0xc0); |
| 8825 | OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)PRIV(utf8_table4) - 0xc0); |
| 8826 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0); |
| 8827 | #elif PCRE2_CODE_UNIT_WIDTH == 16 |
| 8828 | jump[0] = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0xd800); |
| 8829 | OP2(SLJIT_AND, TMP1, 0, TMP1, 0, SLJIT_IMM, 0xfc00); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8830 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, 0xd800); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8831 | OP_FLAGS(SLJIT_MOV, TMP1, 0, SLJIT_EQUAL); |
| 8832 | OP2(SLJIT_SHL, TMP1, 0, TMP1, 0, SLJIT_IMM, 1); |
| 8833 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0); |
| 8834 | #endif /* PCRE2_CODE_UNIT_WIDTH == 8 */ |
| 8835 | JUMPHERE(jump[0]); |
| 8836 | return cc; |
| 8837 | #endif /* PCRE2_CODE_UNIT_WIDTH == [8|16] */ |
| 8838 | } |
| 8839 | #endif /* SUPPORT_UNICODE */ |
| 8840 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 8841 | return cc; |
| 8842 | |
| 8843 | case OP_ANYBYTE: |
| 8844 | if (check_str_ptr) |
| 8845 | detect_partial_match(common, backtracks); |
| 8846 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 8847 | return cc; |
| 8848 | |
| 8849 | #ifdef SUPPORT_UNICODE |
| 8850 | case OP_NOTPROP: |
| 8851 | case OP_PROP: |
| 8852 | propdata[0] = XCL_HASPROP; |
| 8853 | propdata[1] = type == OP_NOTPROP ? XCL_NOTPROP : XCL_PROP; |
| 8854 | propdata[2] = cc[0]; |
| 8855 | propdata[3] = cc[1]; |
| 8856 | propdata[4] = XCL_END; |
| 8857 | if (check_str_ptr) |
| 8858 | detect_partial_match(common, backtracks); |
| 8859 | compile_xclass_matchingpath(common, propdata, backtracks); |
| 8860 | return cc + 2; |
| 8861 | #endif |
| 8862 | |
| 8863 | case OP_ANYNL: |
| 8864 | if (check_str_ptr) |
| 8865 | detect_partial_match(common, backtracks); |
| 8866 | read_char(common, common->bsr_nlmin, common->bsr_nlmax, NULL, 0); |
| 8867 | jump[0] = CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_CR); |
| 8868 | /* We don't need to handle soft partial matching case. */ |
| 8869 | end_list = NULL; |
| 8870 | if (common->mode != PCRE2_JIT_PARTIAL_HARD) |
| 8871 | add_jump(compiler, &end_list, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); |
| 8872 | else |
| 8873 | check_str_end(common, &end_list); |
| 8874 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), 0); |
| 8875 | jump[1] = CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, CHAR_NL); |
| 8876 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 8877 | jump[2] = JUMP(SLJIT_JUMP); |
| 8878 | JUMPHERE(jump[0]); |
| 8879 | check_newlinechar(common, common->bsr_nltype, backtracks, FALSE); |
| 8880 | set_jumps(end_list, LABEL()); |
| 8881 | JUMPHERE(jump[1]); |
| 8882 | JUMPHERE(jump[2]); |
| 8883 | return cc; |
| 8884 | |
| 8885 | case OP_NOT_HSPACE: |
| 8886 | case OP_HSPACE: |
| 8887 | if (check_str_ptr) |
| 8888 | detect_partial_match(common, backtracks); |
| 8889 | |
| 8890 | if (type == OP_NOT_HSPACE) |
| 8891 | read_char(common, 0x9, 0x3000, backtracks, READ_CHAR_UPDATE_STR_PTR); |
| 8892 | else |
| 8893 | read_char(common, 0x9, 0x3000, NULL, 0); |
| 8894 | |
| 8895 | add_jump(compiler, &common->hspace, JUMP(SLJIT_FAST_CALL)); |
| 8896 | sljit_set_current_flags(compiler, SLJIT_SET_Z); |
| 8897 | add_jump(compiler, backtracks, JUMP(type == OP_NOT_HSPACE ? SLJIT_NOT_ZERO : SLJIT_ZERO)); |
| 8898 | return cc; |
| 8899 | |
| 8900 | case OP_NOT_VSPACE: |
| 8901 | case OP_VSPACE: |
| 8902 | if (check_str_ptr) |
| 8903 | detect_partial_match(common, backtracks); |
| 8904 | |
| 8905 | if (type == OP_NOT_VSPACE) |
| 8906 | read_char(common, 0xa, 0x2029, backtracks, READ_CHAR_UPDATE_STR_PTR); |
| 8907 | else |
| 8908 | read_char(common, 0xa, 0x2029, NULL, 0); |
| 8909 | |
| 8910 | add_jump(compiler, &common->vspace, JUMP(SLJIT_FAST_CALL)); |
| 8911 | sljit_set_current_flags(compiler, SLJIT_SET_Z); |
| 8912 | add_jump(compiler, backtracks, JUMP(type == OP_NOT_VSPACE ? SLJIT_NOT_ZERO : SLJIT_ZERO)); |
| 8913 | return cc; |
| 8914 | |
| 8915 | #ifdef SUPPORT_UNICODE |
| 8916 | case OP_EXTUNI: |
| 8917 | if (check_str_ptr) |
| 8918 | detect_partial_match(common, backtracks); |
| 8919 | |
| 8920 | SLJIT_ASSERT(TMP1 == SLJIT_R0 && STR_PTR == SLJIT_R1); |
| 8921 | OP1(SLJIT_MOV, SLJIT_R0, 0, ARGUMENTS, 0); |
| 8922 | |
| 8923 | #if PCRE2_CODE_UNIT_WIDTH != 32 |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8924 | sljit_emit_icall(compiler, SLJIT_CALL, SLJIT_ARGS2(W, W, W), SLJIT_IMM, |
| 8925 | common->utf ? (common->invalid_utf ? SLJIT_FUNC_ADDR(do_extuni_utf_invalid) : SLJIT_FUNC_ADDR(do_extuni_utf)) : SLJIT_FUNC_ADDR(do_extuni_no_utf)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8926 | if (common->invalid_utf) |
| 8927 | add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, SLJIT_RETURN_REG, 0, SLJIT_IMM, 0)); |
| 8928 | #else |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8929 | sljit_emit_icall(compiler, SLJIT_CALL, SLJIT_ARGS2(W, W, W), SLJIT_IMM, |
| 8930 | common->invalid_utf ? SLJIT_FUNC_ADDR(do_extuni_utf_invalid) : SLJIT_FUNC_ADDR(do_extuni_no_utf)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8931 | if (!common->utf || common->invalid_utf) |
| 8932 | add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, SLJIT_RETURN_REG, 0, SLJIT_IMM, 0)); |
| 8933 | #endif |
| 8934 | |
| 8935 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_RETURN_REG, 0); |
| 8936 | |
| 8937 | if (common->mode == PCRE2_JIT_PARTIAL_HARD) |
| 8938 | { |
| 8939 | jump[0] = CMP(SLJIT_LESS, SLJIT_RETURN_REG, 0, STR_END, 0); |
| 8940 | /* Since we successfully read a char above, partial matching must occure. */ |
| 8941 | check_partial(common, TRUE); |
| 8942 | JUMPHERE(jump[0]); |
| 8943 | } |
| 8944 | return cc; |
| 8945 | #endif |
| 8946 | |
| 8947 | case OP_CHAR: |
| 8948 | case OP_CHARI: |
| 8949 | length = 1; |
| 8950 | #ifdef SUPPORT_UNICODE |
| 8951 | if (common->utf && HAS_EXTRALEN(*cc)) length += GET_EXTRALEN(*cc); |
| 8952 | #endif |
| 8953 | |
| 8954 | if (check_str_ptr && common->mode != PCRE2_JIT_COMPLETE) |
| 8955 | detect_partial_match(common, backtracks); |
| 8956 | |
| 8957 | if (type == OP_CHAR || !char_has_othercase(common, cc) || char_get_othercase_bit(common, cc) != 0) |
| 8958 | { |
| 8959 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(length)); |
| 8960 | if (length > 1 || (check_str_ptr && common->mode == PCRE2_JIT_COMPLETE)) |
| 8961 | add_jump(compiler, backtracks, CMP(SLJIT_GREATER, STR_PTR, 0, STR_END, 0)); |
| 8962 | |
| 8963 | context.length = IN_UCHARS(length); |
| 8964 | context.sourcereg = -1; |
| 8965 | #if defined SLJIT_UNALIGNED && SLJIT_UNALIGNED |
| 8966 | context.ucharptr = 0; |
| 8967 | #endif |
| 8968 | return byte_sequence_compare(common, type == OP_CHARI, cc, &context, backtracks); |
| 8969 | } |
| 8970 | |
| 8971 | #ifdef SUPPORT_UNICODE |
| 8972 | if (common->utf) |
| 8973 | { |
| 8974 | GETCHAR(c, cc); |
| 8975 | } |
| 8976 | else |
| 8977 | #endif |
| 8978 | c = *cc; |
| 8979 | |
| 8980 | SLJIT_ASSERT(type == OP_CHARI && char_has_othercase(common, cc)); |
| 8981 | |
| 8982 | if (check_str_ptr && common->mode == PCRE2_JIT_COMPLETE) |
| 8983 | add_jump(compiler, backtracks, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); |
| 8984 | |
| 8985 | oc = char_othercase(common, c); |
| 8986 | read_char(common, c < oc ? c : oc, c > oc ? c : oc, NULL, 0); |
| 8987 | |
| 8988 | SLJIT_ASSERT(!is_powerof2(c ^ oc)); |
| 8989 | |
| 8990 | if (sljit_has_cpu_feature(SLJIT_HAS_CMOV)) |
| 8991 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 8992 | OP2U(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, SLJIT_IMM, oc); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 8993 | CMOV(SLJIT_EQUAL, TMP1, SLJIT_IMM, c); |
| 8994 | add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, c)); |
| 8995 | } |
| 8996 | else |
| 8997 | { |
| 8998 | jump[0] = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, c); |
| 8999 | add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, oc)); |
| 9000 | JUMPHERE(jump[0]); |
| 9001 | } |
| 9002 | return cc + length; |
| 9003 | |
| 9004 | case OP_NOT: |
| 9005 | case OP_NOTI: |
| 9006 | if (check_str_ptr) |
| 9007 | detect_partial_match(common, backtracks); |
| 9008 | |
| 9009 | length = 1; |
| 9010 | #ifdef SUPPORT_UNICODE |
| 9011 | if (common->utf) |
| 9012 | { |
| 9013 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 9014 | c = *cc; |
| 9015 | if (c < 128 && !common->invalid_utf) |
| 9016 | { |
| 9017 | OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(STR_PTR), 0); |
| 9018 | if (type == OP_NOT || !char_has_othercase(common, cc)) |
| 9019 | add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, c)); |
| 9020 | else |
| 9021 | { |
| 9022 | /* Since UTF8 code page is fixed, we know that c is in [a-z] or [A-Z] range. */ |
| 9023 | OP2(SLJIT_OR, TMP2, 0, TMP1, 0, SLJIT_IMM, 0x20); |
| 9024 | add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP2, 0, SLJIT_IMM, c | 0x20)); |
| 9025 | } |
| 9026 | /* Skip the variable-length character. */ |
| 9027 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 9028 | jump[0] = CMP(SLJIT_LESS, TMP1, 0, SLJIT_IMM, 0xc0); |
| 9029 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)PRIV(utf8_table4) - 0xc0); |
| 9030 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0); |
| 9031 | JUMPHERE(jump[0]); |
| 9032 | return cc + 1; |
| 9033 | } |
| 9034 | else |
| 9035 | #endif /* PCRE2_CODE_UNIT_WIDTH == 8 */ |
| 9036 | { |
| 9037 | GETCHARLEN(c, cc, length); |
| 9038 | } |
| 9039 | } |
| 9040 | else |
| 9041 | #endif /* SUPPORT_UNICODE */ |
| 9042 | c = *cc; |
| 9043 | |
| 9044 | if (type == OP_NOT || !char_has_othercase(common, cc)) |
| 9045 | { |
| 9046 | read_char(common, c, c, backtracks, READ_CHAR_UPDATE_STR_PTR); |
| 9047 | add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, c)); |
| 9048 | } |
| 9049 | else |
| 9050 | { |
| 9051 | oc = char_othercase(common, c); |
| 9052 | read_char(common, c < oc ? c : oc, c > oc ? c : oc, backtracks, READ_CHAR_UPDATE_STR_PTR); |
| 9053 | bit = c ^ oc; |
| 9054 | if (is_powerof2(bit)) |
| 9055 | { |
| 9056 | OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, bit); |
| 9057 | add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, c | bit)); |
| 9058 | } |
| 9059 | else |
| 9060 | { |
| 9061 | add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, c)); |
| 9062 | add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, oc)); |
| 9063 | } |
| 9064 | } |
| 9065 | return cc + length; |
| 9066 | |
| 9067 | case OP_CLASS: |
| 9068 | case OP_NCLASS: |
| 9069 | if (check_str_ptr) |
| 9070 | detect_partial_match(common, backtracks); |
| 9071 | |
| 9072 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8 |
| 9073 | bit = (common->utf && is_char7_bitset((const sljit_u8 *)cc, type == OP_NCLASS)) ? 127 : 255; |
| 9074 | if (type == OP_NCLASS) |
| 9075 | read_char(common, 0, bit, backtracks, READ_CHAR_UPDATE_STR_PTR); |
| 9076 | else |
| 9077 | read_char(common, 0, bit, NULL, 0); |
| 9078 | #else |
| 9079 | if (type == OP_NCLASS) |
| 9080 | read_char(common, 0, 255, backtracks, READ_CHAR_UPDATE_STR_PTR); |
| 9081 | else |
| 9082 | read_char(common, 0, 255, NULL, 0); |
| 9083 | #endif |
| 9084 | |
| 9085 | if (optimize_class(common, (const sljit_u8 *)cc, type == OP_NCLASS, FALSE, backtracks)) |
| 9086 | return cc + 32 / sizeof(PCRE2_UCHAR); |
| 9087 | |
| 9088 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8 |
| 9089 | jump[0] = NULL; |
| 9090 | if (common->utf) |
| 9091 | { |
| 9092 | jump[0] = CMP(SLJIT_GREATER, TMP1, 0, SLJIT_IMM, bit); |
| 9093 | if (type == OP_CLASS) |
| 9094 | { |
| 9095 | add_jump(compiler, backtracks, jump[0]); |
| 9096 | jump[0] = NULL; |
| 9097 | } |
| 9098 | } |
| 9099 | #elif PCRE2_CODE_UNIT_WIDTH != 8 |
| 9100 | jump[0] = CMP(SLJIT_GREATER, TMP1, 0, SLJIT_IMM, 255); |
| 9101 | if (type == OP_CLASS) |
| 9102 | { |
| 9103 | add_jump(compiler, backtracks, jump[0]); |
| 9104 | jump[0] = NULL; |
| 9105 | } |
| 9106 | #endif /* SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH == 8 */ |
| 9107 | |
| 9108 | OP2(SLJIT_AND, TMP2, 0, TMP1, 0, SLJIT_IMM, 0x7); |
| 9109 | OP2(SLJIT_LSHR, TMP1, 0, TMP1, 0, SLJIT_IMM, 3); |
| 9110 | OP1(SLJIT_MOV_U8, TMP1, 0, SLJIT_MEM1(TMP1), (sljit_sw)cc); |
| 9111 | OP2(SLJIT_SHL, TMP2, 0, SLJIT_IMM, 1, TMP2, 0); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 9112 | OP2U(SLJIT_AND | SLJIT_SET_Z, TMP1, 0, TMP2, 0); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 9113 | add_jump(compiler, backtracks, JUMP(SLJIT_ZERO)); |
| 9114 | |
| 9115 | #if defined SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH != 8 |
| 9116 | if (jump[0] != NULL) |
| 9117 | JUMPHERE(jump[0]); |
| 9118 | #endif |
| 9119 | return cc + 32 / sizeof(PCRE2_UCHAR); |
| 9120 | |
| 9121 | #if defined SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32 |
| 9122 | case OP_XCLASS: |
| 9123 | if (check_str_ptr) |
| 9124 | detect_partial_match(common, backtracks); |
| 9125 | compile_xclass_matchingpath(common, cc + LINK_SIZE, backtracks); |
| 9126 | return cc + GET(cc, 0) - 1; |
| 9127 | #endif |
| 9128 | } |
| 9129 | SLJIT_UNREACHABLE(); |
| 9130 | return cc; |
| 9131 | } |
| 9132 | |
| 9133 | static SLJIT_INLINE PCRE2_SPTR compile_charn_matchingpath(compiler_common *common, PCRE2_SPTR cc, PCRE2_SPTR ccend, jump_list **backtracks) |
| 9134 | { |
| 9135 | /* This function consumes at least one input character. */ |
| 9136 | /* To decrease the number of length checks, we try to concatenate the fixed length character sequences. */ |
| 9137 | DEFINE_COMPILER; |
| 9138 | PCRE2_SPTR ccbegin = cc; |
| 9139 | compare_context context; |
| 9140 | int size; |
| 9141 | |
| 9142 | context.length = 0; |
| 9143 | do |
| 9144 | { |
| 9145 | if (cc >= ccend) |
| 9146 | break; |
| 9147 | |
| 9148 | if (*cc == OP_CHAR) |
| 9149 | { |
| 9150 | size = 1; |
| 9151 | #ifdef SUPPORT_UNICODE |
| 9152 | if (common->utf && HAS_EXTRALEN(cc[1])) |
| 9153 | size += GET_EXTRALEN(cc[1]); |
| 9154 | #endif |
| 9155 | } |
| 9156 | else if (*cc == OP_CHARI) |
| 9157 | { |
| 9158 | size = 1; |
| 9159 | #ifdef SUPPORT_UNICODE |
| 9160 | if (common->utf) |
| 9161 | { |
| 9162 | if (char_has_othercase(common, cc + 1) && char_get_othercase_bit(common, cc + 1) == 0) |
| 9163 | size = 0; |
| 9164 | else if (HAS_EXTRALEN(cc[1])) |
| 9165 | size += GET_EXTRALEN(cc[1]); |
| 9166 | } |
| 9167 | else |
| 9168 | #endif |
| 9169 | if (char_has_othercase(common, cc + 1) && char_get_othercase_bit(common, cc + 1) == 0) |
| 9170 | size = 0; |
| 9171 | } |
| 9172 | else |
| 9173 | size = 0; |
| 9174 | |
| 9175 | cc += 1 + size; |
| 9176 | context.length += IN_UCHARS(size); |
| 9177 | } |
| 9178 | while (size > 0 && context.length <= 128); |
| 9179 | |
| 9180 | cc = ccbegin; |
| 9181 | if (context.length > 0) |
| 9182 | { |
| 9183 | /* We have a fixed-length byte sequence. */ |
| 9184 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, context.length); |
| 9185 | add_jump(compiler, backtracks, CMP(SLJIT_GREATER, STR_PTR, 0, STR_END, 0)); |
| 9186 | |
| 9187 | context.sourcereg = -1; |
| 9188 | #if defined SLJIT_UNALIGNED && SLJIT_UNALIGNED |
| 9189 | context.ucharptr = 0; |
| 9190 | #endif |
| 9191 | do cc = byte_sequence_compare(common, *cc == OP_CHARI, cc + 1, &context, backtracks); while (context.length > 0); |
| 9192 | return cc; |
| 9193 | } |
| 9194 | |
| 9195 | /* A non-fixed length character will be checked if length == 0. */ |
| 9196 | return compile_char1_matchingpath(common, *cc, cc + 1, backtracks, TRUE); |
| 9197 | } |
| 9198 | |
| 9199 | /* Forward definitions. */ |
| 9200 | static void compile_matchingpath(compiler_common *, PCRE2_SPTR, PCRE2_SPTR, backtrack_common *); |
| 9201 | static void compile_backtrackingpath(compiler_common *, struct backtrack_common *); |
| 9202 | |
| 9203 | #define PUSH_BACKTRACK(size, ccstart, error) \ |
| 9204 | do \ |
| 9205 | { \ |
| 9206 | backtrack = sljit_alloc_memory(compiler, (size)); \ |
| 9207 | if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler))) \ |
| 9208 | return error; \ |
| 9209 | memset(backtrack, 0, size); \ |
| 9210 | backtrack->prev = parent->top; \ |
| 9211 | backtrack->cc = (ccstart); \ |
| 9212 | parent->top = backtrack; \ |
| 9213 | } \ |
| 9214 | while (0) |
| 9215 | |
| 9216 | #define PUSH_BACKTRACK_NOVALUE(size, ccstart) \ |
| 9217 | do \ |
| 9218 | { \ |
| 9219 | backtrack = sljit_alloc_memory(compiler, (size)); \ |
| 9220 | if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler))) \ |
| 9221 | return; \ |
| 9222 | memset(backtrack, 0, size); \ |
| 9223 | backtrack->prev = parent->top; \ |
| 9224 | backtrack->cc = (ccstart); \ |
| 9225 | parent->top = backtrack; \ |
| 9226 | } \ |
| 9227 | while (0) |
| 9228 | |
| 9229 | #define BACKTRACK_AS(type) ((type *)backtrack) |
| 9230 | |
| 9231 | static void compile_dnref_search(compiler_common *common, PCRE2_SPTR cc, jump_list **backtracks) |
| 9232 | { |
| 9233 | /* The OVECTOR offset goes to TMP2. */ |
| 9234 | DEFINE_COMPILER; |
| 9235 | int count = GET2(cc, 1 + IMM2_SIZE); |
| 9236 | PCRE2_SPTR slot = common->name_table + GET2(cc, 1) * common->name_entry_size; |
| 9237 | unsigned int offset; |
| 9238 | jump_list *found = NULL; |
| 9239 | |
| 9240 | SLJIT_ASSERT(*cc == OP_DNREF || *cc == OP_DNREFI); |
| 9241 | |
| 9242 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(1)); |
| 9243 | |
| 9244 | count--; |
| 9245 | while (count-- > 0) |
| 9246 | { |
| 9247 | offset = GET2(slot, 0) << 1; |
| 9248 | GET_LOCAL_BASE(TMP2, 0, OVECTOR(offset)); |
| 9249 | add_jump(compiler, &found, CMP(SLJIT_NOT_EQUAL, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset), TMP1, 0)); |
| 9250 | slot += common->name_entry_size; |
| 9251 | } |
| 9252 | |
| 9253 | offset = GET2(slot, 0) << 1; |
| 9254 | GET_LOCAL_BASE(TMP2, 0, OVECTOR(offset)); |
| 9255 | if (backtracks != NULL && !common->unset_backref) |
| 9256 | add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset), TMP1, 0)); |
| 9257 | |
| 9258 | set_jumps(found, LABEL()); |
| 9259 | } |
| 9260 | |
| 9261 | static void compile_ref_matchingpath(compiler_common *common, PCRE2_SPTR cc, jump_list **backtracks, BOOL withchecks, BOOL emptyfail) |
| 9262 | { |
| 9263 | DEFINE_COMPILER; |
| 9264 | BOOL ref = (*cc == OP_REF || *cc == OP_REFI); |
| 9265 | int offset = 0; |
| 9266 | struct sljit_jump *jump = NULL; |
| 9267 | struct sljit_jump *partial; |
| 9268 | struct sljit_jump *nopartial; |
| 9269 | #if defined SUPPORT_UNICODE |
| 9270 | struct sljit_label *loop; |
| 9271 | struct sljit_label *caseless_loop; |
| 9272 | jump_list *no_match = NULL; |
| 9273 | int source_reg = COUNT_MATCH; |
| 9274 | int source_end_reg = ARGUMENTS; |
| 9275 | int char1_reg = STACK_LIMIT; |
| 9276 | #endif /* SUPPORT_UNICODE */ |
| 9277 | |
| 9278 | if (ref) |
| 9279 | { |
| 9280 | offset = GET2(cc, 1) << 1; |
| 9281 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset)); |
| 9282 | /* OVECTOR(1) contains the "string begin - 1" constant. */ |
| 9283 | if (withchecks && !common->unset_backref) |
| 9284 | add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(1))); |
| 9285 | } |
| 9286 | else |
| 9287 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP2), 0); |
| 9288 | |
| 9289 | #if defined SUPPORT_UNICODE |
| 9290 | if (common->utf && *cc == OP_REFI) |
| 9291 | { |
| 9292 | SLJIT_ASSERT(common->iref_ptr != 0); |
| 9293 | |
| 9294 | if (ref) |
| 9295 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1)); |
| 9296 | else |
| 9297 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP2), sizeof(sljit_sw)); |
| 9298 | |
| 9299 | if (withchecks && emptyfail) |
| 9300 | add_jump(compiler, backtracks, CMP(SLJIT_EQUAL, TMP1, 0, TMP2, 0)); |
| 9301 | |
| 9302 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->iref_ptr, source_reg, 0); |
| 9303 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->iref_ptr + sizeof(sljit_sw), source_end_reg, 0); |
| 9304 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->iref_ptr + sizeof(sljit_sw) * 2, char1_reg, 0); |
| 9305 | |
| 9306 | OP1(SLJIT_MOV, source_reg, 0, TMP1, 0); |
| 9307 | OP1(SLJIT_MOV, source_end_reg, 0, TMP2, 0); |
| 9308 | |
| 9309 | loop = LABEL(); |
| 9310 | jump = CMP(SLJIT_GREATER_EQUAL, source_reg, 0, source_end_reg, 0); |
| 9311 | partial = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0); |
| 9312 | |
| 9313 | /* Read original character. It must be a valid UTF character. */ |
| 9314 | OP1(SLJIT_MOV, TMP3, 0, STR_PTR, 0); |
| 9315 | OP1(SLJIT_MOV, STR_PTR, 0, source_reg, 0); |
| 9316 | |
| 9317 | read_char(common, 0, READ_CHAR_MAX, NULL, READ_CHAR_UPDATE_STR_PTR | READ_CHAR_VALID_UTF); |
| 9318 | |
| 9319 | OP1(SLJIT_MOV, source_reg, 0, STR_PTR, 0); |
| 9320 | OP1(SLJIT_MOV, STR_PTR, 0, TMP3, 0); |
| 9321 | OP1(SLJIT_MOV, char1_reg, 0, TMP1, 0); |
| 9322 | |
| 9323 | /* Read second character. */ |
| 9324 | read_char(common, 0, READ_CHAR_MAX, &no_match, READ_CHAR_UPDATE_STR_PTR); |
| 9325 | |
| 9326 | CMPTO(SLJIT_EQUAL, TMP1, 0, char1_reg, 0, loop); |
| 9327 | |
| 9328 | OP1(SLJIT_MOV, TMP3, 0, TMP1, 0); |
| 9329 | |
| 9330 | add_jump(compiler, &common->getucd, JUMP(SLJIT_FAST_CALL)); |
| 9331 | |
| 9332 | OP2(SLJIT_SHL, TMP1, 0, TMP2, 0, SLJIT_IMM, 2); |
| 9333 | OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 3); |
| 9334 | OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, TMP1, 0); |
| 9335 | |
| 9336 | OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, SLJIT_IMM, (sljit_sw)PRIV(ucd_records)); |
| 9337 | |
| 9338 | OP1(SLJIT_MOV_S32, TMP1, 0, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(ucd_record, other_case)); |
| 9339 | OP1(SLJIT_MOV_U8, TMP2, 0, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(ucd_record, caseset)); |
| 9340 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, TMP3, 0); |
| 9341 | CMPTO(SLJIT_EQUAL, TMP1, 0, char1_reg, 0, loop); |
| 9342 | |
| 9343 | add_jump(compiler, &no_match, CMP(SLJIT_EQUAL, TMP2, 0, SLJIT_IMM, 0)); |
| 9344 | OP2(SLJIT_SHL, TMP2, 0, TMP2, 0, SLJIT_IMM, 2); |
| 9345 | OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, SLJIT_IMM, (sljit_sw)PRIV(ucd_caseless_sets)); |
| 9346 | |
| 9347 | caseless_loop = LABEL(); |
| 9348 | OP1(SLJIT_MOV_U32, TMP1, 0, SLJIT_MEM1(TMP2), 0); |
| 9349 | OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, SLJIT_IMM, sizeof(uint32_t)); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 9350 | OP2U(SLJIT_SUB | SLJIT_SET_Z | SLJIT_SET_LESS, TMP1, 0, char1_reg, 0); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 9351 | JUMPTO(SLJIT_EQUAL, loop); |
| 9352 | JUMPTO(SLJIT_LESS, caseless_loop); |
| 9353 | |
| 9354 | set_jumps(no_match, LABEL()); |
| 9355 | if (common->mode == PCRE2_JIT_COMPLETE) |
| 9356 | JUMPHERE(partial); |
| 9357 | |
| 9358 | OP1(SLJIT_MOV, source_reg, 0, SLJIT_MEM1(SLJIT_SP), common->iref_ptr); |
| 9359 | OP1(SLJIT_MOV, source_end_reg, 0, SLJIT_MEM1(SLJIT_SP), common->iref_ptr + sizeof(sljit_sw)); |
| 9360 | OP1(SLJIT_MOV, char1_reg, 0, SLJIT_MEM1(SLJIT_SP), common->iref_ptr + sizeof(sljit_sw) * 2); |
| 9361 | add_jump(compiler, backtracks, JUMP(SLJIT_JUMP)); |
| 9362 | |
| 9363 | if (common->mode != PCRE2_JIT_COMPLETE) |
| 9364 | { |
| 9365 | JUMPHERE(partial); |
| 9366 | OP1(SLJIT_MOV, source_reg, 0, SLJIT_MEM1(SLJIT_SP), common->iref_ptr); |
| 9367 | OP1(SLJIT_MOV, source_end_reg, 0, SLJIT_MEM1(SLJIT_SP), common->iref_ptr + sizeof(sljit_sw)); |
| 9368 | OP1(SLJIT_MOV, char1_reg, 0, SLJIT_MEM1(SLJIT_SP), common->iref_ptr + sizeof(sljit_sw) * 2); |
| 9369 | |
| 9370 | check_partial(common, FALSE); |
| 9371 | add_jump(compiler, backtracks, JUMP(SLJIT_JUMP)); |
| 9372 | } |
| 9373 | |
| 9374 | JUMPHERE(jump); |
| 9375 | OP1(SLJIT_MOV, source_reg, 0, SLJIT_MEM1(SLJIT_SP), common->iref_ptr); |
| 9376 | OP1(SLJIT_MOV, source_end_reg, 0, SLJIT_MEM1(SLJIT_SP), common->iref_ptr + sizeof(sljit_sw)); |
| 9377 | OP1(SLJIT_MOV, char1_reg, 0, SLJIT_MEM1(SLJIT_SP), common->iref_ptr + sizeof(sljit_sw) * 2); |
| 9378 | return; |
| 9379 | } |
| 9380 | else |
| 9381 | #endif /* SUPPORT_UNICODE */ |
| 9382 | { |
| 9383 | if (ref) |
| 9384 | OP2(SLJIT_SUB | SLJIT_SET_Z, TMP2, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1), TMP1, 0); |
| 9385 | else |
| 9386 | OP2(SLJIT_SUB | SLJIT_SET_Z, TMP2, 0, SLJIT_MEM1(TMP2), sizeof(sljit_sw), TMP1, 0); |
| 9387 | |
| 9388 | if (withchecks) |
| 9389 | jump = JUMP(SLJIT_ZERO); |
| 9390 | |
| 9391 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0); |
| 9392 | partial = CMP(SLJIT_GREATER, STR_PTR, 0, STR_END, 0); |
| 9393 | if (common->mode == PCRE2_JIT_COMPLETE) |
| 9394 | add_jump(compiler, backtracks, partial); |
| 9395 | |
| 9396 | add_jump(compiler, *cc == OP_REF ? &common->casefulcmp : &common->caselesscmp, JUMP(SLJIT_FAST_CALL)); |
| 9397 | add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP2, 0, SLJIT_IMM, 0)); |
| 9398 | |
| 9399 | if (common->mode != PCRE2_JIT_COMPLETE) |
| 9400 | { |
| 9401 | nopartial = JUMP(SLJIT_JUMP); |
| 9402 | JUMPHERE(partial); |
| 9403 | /* TMP2 -= STR_END - STR_PTR */ |
| 9404 | OP2(SLJIT_SUB, TMP2, 0, TMP2, 0, STR_PTR, 0); |
| 9405 | OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, STR_END, 0); |
| 9406 | partial = CMP(SLJIT_EQUAL, TMP2, 0, SLJIT_IMM, 0); |
| 9407 | OP1(SLJIT_MOV, STR_PTR, 0, STR_END, 0); |
| 9408 | add_jump(compiler, *cc == OP_REF ? &common->casefulcmp : &common->caselesscmp, JUMP(SLJIT_FAST_CALL)); |
| 9409 | add_jump(compiler, backtracks, CMP(SLJIT_NOT_EQUAL, TMP2, 0, SLJIT_IMM, 0)); |
| 9410 | JUMPHERE(partial); |
| 9411 | check_partial(common, FALSE); |
| 9412 | add_jump(compiler, backtracks, JUMP(SLJIT_JUMP)); |
| 9413 | JUMPHERE(nopartial); |
| 9414 | } |
| 9415 | } |
| 9416 | |
| 9417 | if (jump != NULL) |
| 9418 | { |
| 9419 | if (emptyfail) |
| 9420 | add_jump(compiler, backtracks, jump); |
| 9421 | else |
| 9422 | JUMPHERE(jump); |
| 9423 | } |
| 9424 | } |
| 9425 | |
| 9426 | static SLJIT_INLINE PCRE2_SPTR compile_ref_iterator_matchingpath(compiler_common *common, PCRE2_SPTR cc, backtrack_common *parent) |
| 9427 | { |
| 9428 | DEFINE_COMPILER; |
| 9429 | BOOL ref = (*cc == OP_REF || *cc == OP_REFI); |
| 9430 | backtrack_common *backtrack; |
| 9431 | PCRE2_UCHAR type; |
| 9432 | int offset = 0; |
| 9433 | struct sljit_label *label; |
| 9434 | struct sljit_jump *zerolength; |
| 9435 | struct sljit_jump *jump = NULL; |
| 9436 | PCRE2_SPTR ccbegin = cc; |
| 9437 | int min = 0, max = 0; |
| 9438 | BOOL minimize; |
| 9439 | |
| 9440 | PUSH_BACKTRACK(sizeof(ref_iterator_backtrack), cc, NULL); |
| 9441 | |
| 9442 | if (ref) |
| 9443 | offset = GET2(cc, 1) << 1; |
| 9444 | else |
| 9445 | cc += IMM2_SIZE; |
| 9446 | type = cc[1 + IMM2_SIZE]; |
| 9447 | |
| 9448 | SLJIT_COMPILE_ASSERT((OP_CRSTAR & 0x1) == 0, crstar_opcode_must_be_even); |
| 9449 | minimize = (type & 0x1) != 0; |
| 9450 | switch(type) |
| 9451 | { |
| 9452 | case OP_CRSTAR: |
| 9453 | case OP_CRMINSTAR: |
| 9454 | min = 0; |
| 9455 | max = 0; |
| 9456 | cc += 1 + IMM2_SIZE + 1; |
| 9457 | break; |
| 9458 | case OP_CRPLUS: |
| 9459 | case OP_CRMINPLUS: |
| 9460 | min = 1; |
| 9461 | max = 0; |
| 9462 | cc += 1 + IMM2_SIZE + 1; |
| 9463 | break; |
| 9464 | case OP_CRQUERY: |
| 9465 | case OP_CRMINQUERY: |
| 9466 | min = 0; |
| 9467 | max = 1; |
| 9468 | cc += 1 + IMM2_SIZE + 1; |
| 9469 | break; |
| 9470 | case OP_CRRANGE: |
| 9471 | case OP_CRMINRANGE: |
| 9472 | min = GET2(cc, 1 + IMM2_SIZE + 1); |
| 9473 | max = GET2(cc, 1 + IMM2_SIZE + 1 + IMM2_SIZE); |
| 9474 | cc += 1 + IMM2_SIZE + 1 + 2 * IMM2_SIZE; |
| 9475 | break; |
| 9476 | default: |
| 9477 | SLJIT_UNREACHABLE(); |
| 9478 | break; |
| 9479 | } |
| 9480 | |
| 9481 | if (!minimize) |
| 9482 | { |
| 9483 | if (min == 0) |
| 9484 | { |
| 9485 | allocate_stack(common, 2); |
| 9486 | if (ref) |
| 9487 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset)); |
| 9488 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0); |
| 9489 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, 0); |
| 9490 | /* Temporary release of STR_PTR. */ |
| 9491 | OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_sw)); |
| 9492 | /* Handles both invalid and empty cases. Since the minimum repeat, |
| 9493 | is zero the invalid case is basically the same as an empty case. */ |
| 9494 | if (ref) |
| 9495 | zerolength = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1)); |
| 9496 | else |
| 9497 | { |
| 9498 | compile_dnref_search(common, ccbegin, NULL); |
| 9499 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP2), 0); |
| 9500 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), POSSESSIVE1, TMP2, 0); |
| 9501 | zerolength = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(TMP2), sizeof(sljit_sw)); |
| 9502 | } |
| 9503 | /* Restore if not zero length. */ |
| 9504 | OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_sw)); |
| 9505 | } |
| 9506 | else |
| 9507 | { |
| 9508 | allocate_stack(common, 1); |
| 9509 | if (ref) |
| 9510 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset)); |
| 9511 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0); |
| 9512 | if (ref) |
| 9513 | { |
| 9514 | add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(1))); |
| 9515 | zerolength = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1)); |
| 9516 | } |
| 9517 | else |
| 9518 | { |
| 9519 | compile_dnref_search(common, ccbegin, &backtrack->topbacktracks); |
| 9520 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP2), 0); |
| 9521 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), POSSESSIVE1, TMP2, 0); |
| 9522 | zerolength = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(TMP2), sizeof(sljit_sw)); |
| 9523 | } |
| 9524 | } |
| 9525 | |
| 9526 | if (min > 1 || max > 1) |
| 9527 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), POSSESSIVE0, SLJIT_IMM, 0); |
| 9528 | |
| 9529 | label = LABEL(); |
| 9530 | if (!ref) |
| 9531 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), POSSESSIVE1); |
| 9532 | compile_ref_matchingpath(common, ccbegin, &backtrack->topbacktracks, FALSE, FALSE); |
| 9533 | |
| 9534 | if (min > 1 || max > 1) |
| 9535 | { |
| 9536 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), POSSESSIVE0); |
| 9537 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 1); |
| 9538 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), POSSESSIVE0, TMP1, 0); |
| 9539 | if (min > 1) |
| 9540 | CMPTO(SLJIT_LESS, TMP1, 0, SLJIT_IMM, min, label); |
| 9541 | if (max > 1) |
| 9542 | { |
| 9543 | jump = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, SLJIT_IMM, max); |
| 9544 | allocate_stack(common, 1); |
| 9545 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0); |
| 9546 | JUMPTO(SLJIT_JUMP, label); |
| 9547 | JUMPHERE(jump); |
| 9548 | } |
| 9549 | } |
| 9550 | |
| 9551 | if (max == 0) |
| 9552 | { |
| 9553 | /* Includes min > 1 case as well. */ |
| 9554 | allocate_stack(common, 1); |
| 9555 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0); |
| 9556 | JUMPTO(SLJIT_JUMP, label); |
| 9557 | } |
| 9558 | |
| 9559 | JUMPHERE(zerolength); |
| 9560 | BACKTRACK_AS(ref_iterator_backtrack)->matchingpath = LABEL(); |
| 9561 | |
| 9562 | count_match(common); |
| 9563 | return cc; |
| 9564 | } |
| 9565 | |
| 9566 | allocate_stack(common, ref ? 2 : 3); |
| 9567 | if (ref) |
| 9568 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset)); |
| 9569 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0); |
| 9570 | if (type != OP_CRMINSTAR) |
| 9571 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, 0); |
| 9572 | |
| 9573 | if (min == 0) |
| 9574 | { |
| 9575 | /* Handles both invalid and empty cases. Since the minimum repeat, |
| 9576 | is zero the invalid case is basically the same as an empty case. */ |
| 9577 | if (ref) |
| 9578 | zerolength = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1)); |
| 9579 | else |
| 9580 | { |
| 9581 | compile_dnref_search(common, ccbegin, NULL); |
| 9582 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP2), 0); |
| 9583 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(2), TMP2, 0); |
| 9584 | zerolength = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(TMP2), sizeof(sljit_sw)); |
| 9585 | } |
| 9586 | /* Length is non-zero, we can match real repeats. */ |
| 9587 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0); |
| 9588 | jump = JUMP(SLJIT_JUMP); |
| 9589 | } |
| 9590 | else |
| 9591 | { |
| 9592 | if (ref) |
| 9593 | { |
| 9594 | add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(1))); |
| 9595 | zerolength = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1)); |
| 9596 | } |
| 9597 | else |
| 9598 | { |
| 9599 | compile_dnref_search(common, ccbegin, &backtrack->topbacktracks); |
| 9600 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP2), 0); |
| 9601 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(2), TMP2, 0); |
| 9602 | zerolength = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_MEM1(TMP2), sizeof(sljit_sw)); |
| 9603 | } |
| 9604 | } |
| 9605 | |
| 9606 | BACKTRACK_AS(ref_iterator_backtrack)->matchingpath = LABEL(); |
| 9607 | if (max > 0) |
| 9608 | add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_GREATER_EQUAL, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, max)); |
| 9609 | |
| 9610 | if (!ref) |
| 9611 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(2)); |
| 9612 | compile_ref_matchingpath(common, ccbegin, &backtrack->topbacktracks, TRUE, TRUE); |
| 9613 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0); |
| 9614 | |
| 9615 | if (min > 1) |
| 9616 | { |
| 9617 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(1)); |
| 9618 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 1); |
| 9619 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), TMP1, 0); |
| 9620 | CMPTO(SLJIT_LESS, TMP1, 0, SLJIT_IMM, min, BACKTRACK_AS(ref_iterator_backtrack)->matchingpath); |
| 9621 | } |
| 9622 | else if (max > 0) |
| 9623 | OP2(SLJIT_ADD, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, 1); |
| 9624 | |
| 9625 | if (jump != NULL) |
| 9626 | JUMPHERE(jump); |
| 9627 | JUMPHERE(zerolength); |
| 9628 | |
| 9629 | count_match(common); |
| 9630 | return cc; |
| 9631 | } |
| 9632 | |
| 9633 | static SLJIT_INLINE PCRE2_SPTR compile_recurse_matchingpath(compiler_common *common, PCRE2_SPTR cc, backtrack_common *parent) |
| 9634 | { |
| 9635 | DEFINE_COMPILER; |
| 9636 | backtrack_common *backtrack; |
| 9637 | recurse_entry *entry = common->entries; |
| 9638 | recurse_entry *prev = NULL; |
| 9639 | sljit_sw start = GET(cc, 1); |
| 9640 | PCRE2_SPTR start_cc; |
| 9641 | BOOL needs_control_head; |
| 9642 | |
| 9643 | PUSH_BACKTRACK(sizeof(recurse_backtrack), cc, NULL); |
| 9644 | |
| 9645 | /* Inlining simple patterns. */ |
| 9646 | if (get_framesize(common, common->start + start, NULL, TRUE, &needs_control_head) == no_stack) |
| 9647 | { |
| 9648 | start_cc = common->start + start; |
| 9649 | compile_matchingpath(common, next_opcode(common, start_cc), bracketend(start_cc) - (1 + LINK_SIZE), backtrack); |
| 9650 | BACKTRACK_AS(recurse_backtrack)->inlined_pattern = TRUE; |
| 9651 | return cc + 1 + LINK_SIZE; |
| 9652 | } |
| 9653 | |
| 9654 | while (entry != NULL) |
| 9655 | { |
| 9656 | if (entry->start == start) |
| 9657 | break; |
| 9658 | prev = entry; |
| 9659 | entry = entry->next; |
| 9660 | } |
| 9661 | |
| 9662 | if (entry == NULL) |
| 9663 | { |
| 9664 | entry = sljit_alloc_memory(compiler, sizeof(recurse_entry)); |
| 9665 | if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler))) |
| 9666 | return NULL; |
| 9667 | entry->next = NULL; |
| 9668 | entry->entry_label = NULL; |
| 9669 | entry->backtrack_label = NULL; |
| 9670 | entry->entry_calls = NULL; |
| 9671 | entry->backtrack_calls = NULL; |
| 9672 | entry->start = start; |
| 9673 | |
| 9674 | if (prev != NULL) |
| 9675 | prev->next = entry; |
| 9676 | else |
| 9677 | common->entries = entry; |
| 9678 | } |
| 9679 | |
| 9680 | BACKTRACK_AS(recurse_backtrack)->entry = entry; |
| 9681 | |
| 9682 | if (entry->entry_label == NULL) |
| 9683 | add_jump(compiler, &entry->entry_calls, JUMP(SLJIT_FAST_CALL)); |
| 9684 | else |
| 9685 | JUMPTO(SLJIT_FAST_CALL, entry->entry_label); |
| 9686 | /* Leave if the match is failed. */ |
| 9687 | add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, 0)); |
| 9688 | BACKTRACK_AS(recurse_backtrack)->matchingpath = LABEL(); |
| 9689 | return cc + 1 + LINK_SIZE; |
| 9690 | } |
| 9691 | |
| 9692 | static sljit_s32 SLJIT_FUNC do_callout(struct jit_arguments *arguments, pcre2_callout_block *callout_block, PCRE2_SPTR *jit_ovector) |
| 9693 | { |
| 9694 | PCRE2_SPTR begin; |
| 9695 | PCRE2_SIZE *ovector; |
| 9696 | sljit_u32 oveccount, capture_top; |
| 9697 | |
| 9698 | if (arguments->callout == NULL) |
| 9699 | return 0; |
| 9700 | |
| 9701 | SLJIT_COMPILE_ASSERT(sizeof (PCRE2_SIZE) <= sizeof (sljit_sw), pcre2_size_must_be_lower_than_sljit_sw_size); |
| 9702 | |
| 9703 | begin = arguments->begin; |
| 9704 | ovector = (PCRE2_SIZE*)(callout_block + 1); |
| 9705 | oveccount = callout_block->capture_top; |
| 9706 | |
| 9707 | SLJIT_ASSERT(oveccount >= 1); |
| 9708 | |
| 9709 | callout_block->version = 2; |
| 9710 | callout_block->callout_flags = 0; |
| 9711 | |
| 9712 | /* Offsets in subject. */ |
| 9713 | callout_block->subject_length = arguments->end - arguments->begin; |
| 9714 | callout_block->start_match = jit_ovector[0] - begin; |
| 9715 | callout_block->current_position = (PCRE2_SPTR)callout_block->offset_vector - begin; |
| 9716 | callout_block->subject = begin; |
| 9717 | |
| 9718 | /* Convert and copy the JIT offset vector to the ovector array. */ |
| 9719 | callout_block->capture_top = 1; |
| 9720 | callout_block->offset_vector = ovector; |
| 9721 | |
| 9722 | ovector[0] = PCRE2_UNSET; |
| 9723 | ovector[1] = PCRE2_UNSET; |
| 9724 | ovector += 2; |
| 9725 | jit_ovector += 2; |
| 9726 | capture_top = 1; |
| 9727 | |
| 9728 | /* Convert pointers to sizes. */ |
| 9729 | while (--oveccount != 0) |
| 9730 | { |
| 9731 | capture_top++; |
| 9732 | |
| 9733 | ovector[0] = (PCRE2_SIZE)(jit_ovector[0] - begin); |
| 9734 | ovector[1] = (PCRE2_SIZE)(jit_ovector[1] - begin); |
| 9735 | |
| 9736 | if (ovector[0] != PCRE2_UNSET) |
| 9737 | callout_block->capture_top = capture_top; |
| 9738 | |
| 9739 | ovector += 2; |
| 9740 | jit_ovector += 2; |
| 9741 | } |
| 9742 | |
| 9743 | return (arguments->callout)(callout_block, arguments->callout_data); |
| 9744 | } |
| 9745 | |
| 9746 | #define CALLOUT_ARG_OFFSET(arg) \ |
| 9747 | SLJIT_OFFSETOF(pcre2_callout_block, arg) |
| 9748 | |
| 9749 | static SLJIT_INLINE PCRE2_SPTR compile_callout_matchingpath(compiler_common *common, PCRE2_SPTR cc, backtrack_common *parent) |
| 9750 | { |
| 9751 | DEFINE_COMPILER; |
| 9752 | backtrack_common *backtrack; |
| 9753 | sljit_s32 mov_opcode; |
| 9754 | unsigned int callout_length = (*cc == OP_CALLOUT) |
| 9755 | ? PRIV(OP_lengths)[OP_CALLOUT] : GET(cc, 1 + 2 * LINK_SIZE); |
| 9756 | sljit_sw value1; |
| 9757 | sljit_sw value2; |
| 9758 | sljit_sw value3; |
| 9759 | sljit_uw callout_arg_size = (common->re->top_bracket + 1) * 2 * sizeof(sljit_sw); |
| 9760 | |
| 9761 | PUSH_BACKTRACK(sizeof(backtrack_common), cc, NULL); |
| 9762 | |
| 9763 | callout_arg_size = (sizeof(pcre2_callout_block) + callout_arg_size + sizeof(sljit_sw) - 1) / sizeof(sljit_sw); |
| 9764 | |
| 9765 | allocate_stack(common, callout_arg_size); |
| 9766 | |
| 9767 | SLJIT_ASSERT(common->capture_last_ptr != 0); |
| 9768 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr); |
| 9769 | OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0); |
| 9770 | value1 = (*cc == OP_CALLOUT) ? cc[1 + 2 * LINK_SIZE] : 0; |
| 9771 | OP1(SLJIT_MOV_U32, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(callout_number), SLJIT_IMM, value1); |
| 9772 | OP1(SLJIT_MOV_U32, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(capture_last), TMP2, 0); |
| 9773 | OP1(SLJIT_MOV_U32, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(capture_top), SLJIT_IMM, common->re->top_bracket + 1); |
| 9774 | |
| 9775 | /* These pointer sized fields temporarly stores internal variables. */ |
| 9776 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(offset_vector), STR_PTR, 0); |
| 9777 | |
| 9778 | if (common->mark_ptr != 0) |
| 9779 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, mark_ptr)); |
| 9780 | mov_opcode = (sizeof(PCRE2_SIZE) == 4) ? SLJIT_MOV_U32 : SLJIT_MOV; |
| 9781 | OP1(mov_opcode, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(pattern_position), SLJIT_IMM, GET(cc, 1)); |
| 9782 | OP1(mov_opcode, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(next_item_length), SLJIT_IMM, GET(cc, 1 + LINK_SIZE)); |
| 9783 | |
| 9784 | if (*cc == OP_CALLOUT) |
| 9785 | { |
| 9786 | value1 = 0; |
| 9787 | value2 = 0; |
| 9788 | value3 = 0; |
| 9789 | } |
| 9790 | else |
| 9791 | { |
| 9792 | value1 = (sljit_sw) (cc + (1 + 4*LINK_SIZE) + 1); |
| 9793 | value2 = (callout_length - (1 + 4*LINK_SIZE + 2)); |
| 9794 | value3 = (sljit_sw) (GET(cc, 1 + 3*LINK_SIZE)); |
| 9795 | } |
| 9796 | |
| 9797 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(callout_string), SLJIT_IMM, value1); |
| 9798 | OP1(mov_opcode, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(callout_string_length), SLJIT_IMM, value2); |
| 9799 | OP1(mov_opcode, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(callout_string_offset), SLJIT_IMM, value3); |
| 9800 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), CALLOUT_ARG_OFFSET(mark), (common->mark_ptr != 0) ? TMP2 : SLJIT_IMM, 0); |
| 9801 | |
| 9802 | SLJIT_ASSERT(TMP1 == SLJIT_R0 && STR_PTR == SLJIT_R1); |
| 9803 | |
| 9804 | /* Needed to save important temporary registers. */ |
| 9805 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS0, STR_PTR, 0); |
| 9806 | /* SLJIT_R0 = arguments */ |
| 9807 | OP1(SLJIT_MOV, SLJIT_R1, 0, STACK_TOP, 0); |
| 9808 | GET_LOCAL_BASE(SLJIT_R2, 0, OVECTOR_START); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 9809 | sljit_emit_icall(compiler, SLJIT_CALL, SLJIT_ARGS3(32, W, W, W), SLJIT_IMM, SLJIT_FUNC_ADDR(do_callout)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 9810 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), LOCALS0); |
| 9811 | free_stack(common, callout_arg_size); |
| 9812 | |
| 9813 | /* Check return value. */ |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 9814 | OP2U(SLJIT_SUB32 | SLJIT_SET_Z | SLJIT_SET_SIG_GREATER, SLJIT_RETURN_REG, 0, SLJIT_IMM, 0); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 9815 | add_jump(compiler, &backtrack->topbacktracks, JUMP(SLJIT_SIG_GREATER)); |
| 9816 | if (common->abort_label == NULL) |
| 9817 | add_jump(compiler, &common->abort, JUMP(SLJIT_NOT_EQUAL) /* SIG_LESS */); |
| 9818 | else |
| 9819 | JUMPTO(SLJIT_NOT_EQUAL /* SIG_LESS */, common->abort_label); |
| 9820 | return cc + callout_length; |
| 9821 | } |
| 9822 | |
| 9823 | #undef CALLOUT_ARG_SIZE |
| 9824 | #undef CALLOUT_ARG_OFFSET |
| 9825 | |
| 9826 | static SLJIT_INLINE BOOL assert_needs_str_ptr_saving(PCRE2_SPTR cc) |
| 9827 | { |
| 9828 | while (TRUE) |
| 9829 | { |
| 9830 | switch (*cc) |
| 9831 | { |
| 9832 | case OP_CALLOUT_STR: |
| 9833 | cc += GET(cc, 1 + 2*LINK_SIZE); |
| 9834 | break; |
| 9835 | |
| 9836 | case OP_NOT_WORD_BOUNDARY: |
| 9837 | case OP_WORD_BOUNDARY: |
| 9838 | case OP_CIRC: |
| 9839 | case OP_CIRCM: |
| 9840 | case OP_DOLL: |
| 9841 | case OP_DOLLM: |
| 9842 | case OP_CALLOUT: |
| 9843 | case OP_ALT: |
| 9844 | cc += PRIV(OP_lengths)[*cc]; |
| 9845 | break; |
| 9846 | |
| 9847 | case OP_KET: |
| 9848 | return FALSE; |
| 9849 | |
| 9850 | default: |
| 9851 | return TRUE; |
| 9852 | } |
| 9853 | } |
| 9854 | } |
| 9855 | |
| 9856 | static PCRE2_SPTR compile_assert_matchingpath(compiler_common *common, PCRE2_SPTR cc, assert_backtrack *backtrack, BOOL conditional) |
| 9857 | { |
| 9858 | DEFINE_COMPILER; |
| 9859 | int framesize; |
| 9860 | int extrasize; |
| 9861 | BOOL local_quit_available = FALSE; |
| 9862 | BOOL needs_control_head; |
| 9863 | int private_data_ptr; |
| 9864 | backtrack_common altbacktrack; |
| 9865 | PCRE2_SPTR ccbegin; |
| 9866 | PCRE2_UCHAR opcode; |
| 9867 | PCRE2_UCHAR bra = OP_BRA; |
| 9868 | jump_list *tmp = NULL; |
| 9869 | jump_list **target = (conditional) ? &backtrack->condfailed : &backtrack->common.topbacktracks; |
| 9870 | jump_list **found; |
| 9871 | /* Saving previous accept variables. */ |
| 9872 | BOOL save_local_quit_available = common->local_quit_available; |
| 9873 | BOOL save_in_positive_assertion = common->in_positive_assertion; |
| 9874 | then_trap_backtrack *save_then_trap = common->then_trap; |
| 9875 | struct sljit_label *save_quit_label = common->quit_label; |
| 9876 | struct sljit_label *save_accept_label = common->accept_label; |
| 9877 | jump_list *save_quit = common->quit; |
| 9878 | jump_list *save_positive_assertion_quit = common->positive_assertion_quit; |
| 9879 | jump_list *save_accept = common->accept; |
| 9880 | struct sljit_jump *jump; |
| 9881 | struct sljit_jump *brajump = NULL; |
| 9882 | |
| 9883 | /* Assert captures then. */ |
| 9884 | common->then_trap = NULL; |
| 9885 | |
| 9886 | if (*cc == OP_BRAZERO || *cc == OP_BRAMINZERO) |
| 9887 | { |
| 9888 | SLJIT_ASSERT(!conditional); |
| 9889 | bra = *cc; |
| 9890 | cc++; |
| 9891 | } |
| 9892 | private_data_ptr = PRIVATE_DATA(cc); |
| 9893 | SLJIT_ASSERT(private_data_ptr != 0); |
| 9894 | framesize = get_framesize(common, cc, NULL, FALSE, &needs_control_head); |
| 9895 | backtrack->framesize = framesize; |
| 9896 | backtrack->private_data_ptr = private_data_ptr; |
| 9897 | opcode = *cc; |
| 9898 | SLJIT_ASSERT(opcode >= OP_ASSERT && opcode <= OP_ASSERTBACK_NOT); |
| 9899 | found = (opcode == OP_ASSERT || opcode == OP_ASSERTBACK) ? &tmp : target; |
| 9900 | ccbegin = cc; |
| 9901 | cc += GET(cc, 1); |
| 9902 | |
| 9903 | if (bra == OP_BRAMINZERO) |
| 9904 | { |
| 9905 | /* This is a braminzero backtrack path. */ |
| 9906 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 9907 | free_stack(common, 1); |
| 9908 | brajump = CMP(SLJIT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0); |
| 9909 | } |
| 9910 | |
| 9911 | if (framesize < 0) |
| 9912 | { |
| 9913 | extrasize = 1; |
| 9914 | if (bra == OP_BRA && !assert_needs_str_ptr_saving(ccbegin + 1 + LINK_SIZE)) |
| 9915 | extrasize = 0; |
| 9916 | |
| 9917 | if (needs_control_head) |
| 9918 | extrasize++; |
| 9919 | |
| 9920 | if (framesize == no_frame) |
| 9921 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, STACK_TOP, 0); |
| 9922 | |
| 9923 | if (extrasize > 0) |
| 9924 | allocate_stack(common, extrasize); |
| 9925 | |
| 9926 | if (needs_control_head) |
| 9927 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr); |
| 9928 | |
| 9929 | if (extrasize > 0) |
| 9930 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0); |
| 9931 | |
| 9932 | if (needs_control_head) |
| 9933 | { |
| 9934 | SLJIT_ASSERT(extrasize == 2); |
| 9935 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, SLJIT_IMM, 0); |
| 9936 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), TMP1, 0); |
| 9937 | } |
| 9938 | } |
| 9939 | else |
| 9940 | { |
| 9941 | extrasize = needs_control_head ? 3 : 2; |
| 9942 | allocate_stack(common, framesize + extrasize); |
| 9943 | |
| 9944 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); |
| 9945 | OP2(SLJIT_ADD, TMP2, 0, STACK_TOP, 0, SLJIT_IMM, (framesize + extrasize) * sizeof(sljit_sw)); |
| 9946 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, TMP2, 0); |
| 9947 | if (needs_control_head) |
| 9948 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr); |
| 9949 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0); |
| 9950 | |
| 9951 | if (needs_control_head) |
| 9952 | { |
| 9953 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(2), TMP1, 0); |
| 9954 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), TMP2, 0); |
| 9955 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, SLJIT_IMM, 0); |
| 9956 | } |
| 9957 | else |
| 9958 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), TMP1, 0); |
| 9959 | |
| 9960 | init_frame(common, ccbegin, NULL, framesize + extrasize - 1, extrasize); |
| 9961 | } |
| 9962 | |
| 9963 | memset(&altbacktrack, 0, sizeof(backtrack_common)); |
| 9964 | if (conditional || (opcode == OP_ASSERT_NOT || opcode == OP_ASSERTBACK_NOT)) |
| 9965 | { |
| 9966 | /* Control verbs cannot escape from these asserts. */ |
| 9967 | local_quit_available = TRUE; |
| 9968 | common->local_quit_available = TRUE; |
| 9969 | common->quit_label = NULL; |
| 9970 | common->quit = NULL; |
| 9971 | } |
| 9972 | |
| 9973 | common->in_positive_assertion = (opcode == OP_ASSERT || opcode == OP_ASSERTBACK); |
| 9974 | common->positive_assertion_quit = NULL; |
| 9975 | |
| 9976 | while (1) |
| 9977 | { |
| 9978 | common->accept_label = NULL; |
| 9979 | common->accept = NULL; |
| 9980 | altbacktrack.top = NULL; |
| 9981 | altbacktrack.topbacktracks = NULL; |
| 9982 | |
| 9983 | if (*ccbegin == OP_ALT && extrasize > 0) |
| 9984 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 9985 | |
| 9986 | altbacktrack.cc = ccbegin; |
| 9987 | compile_matchingpath(common, ccbegin + 1 + LINK_SIZE, cc, &altbacktrack); |
| 9988 | if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler))) |
| 9989 | { |
| 9990 | if (local_quit_available) |
| 9991 | { |
| 9992 | common->local_quit_available = save_local_quit_available; |
| 9993 | common->quit_label = save_quit_label; |
| 9994 | common->quit = save_quit; |
| 9995 | } |
| 9996 | common->in_positive_assertion = save_in_positive_assertion; |
| 9997 | common->then_trap = save_then_trap; |
| 9998 | common->accept_label = save_accept_label; |
| 9999 | common->positive_assertion_quit = save_positive_assertion_quit; |
| 10000 | common->accept = save_accept; |
| 10001 | return NULL; |
| 10002 | } |
| 10003 | common->accept_label = LABEL(); |
| 10004 | if (common->accept != NULL) |
| 10005 | set_jumps(common->accept, common->accept_label); |
| 10006 | |
| 10007 | /* Reset stack. */ |
| 10008 | if (framesize < 0) |
| 10009 | { |
| 10010 | if (framesize == no_frame) |
| 10011 | OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); |
| 10012 | else if (extrasize > 0) |
| 10013 | free_stack(common, extrasize); |
| 10014 | |
| 10015 | if (needs_control_head) |
| 10016 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, SLJIT_MEM1(STACK_TOP), STACK(-1)); |
| 10017 | } |
| 10018 | else |
| 10019 | { |
| 10020 | if ((opcode != OP_ASSERT_NOT && opcode != OP_ASSERTBACK_NOT) || conditional) |
| 10021 | { |
| 10022 | /* We don't need to keep the STR_PTR, only the previous private_data_ptr. */ |
| 10023 | OP2(SLJIT_SUB, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_IMM, (framesize + 1) * sizeof(sljit_sw)); |
| 10024 | if (needs_control_head) |
| 10025 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, SLJIT_MEM1(STACK_TOP), STACK(-1)); |
| 10026 | } |
| 10027 | else |
| 10028 | { |
| 10029 | OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); |
| 10030 | if (needs_control_head) |
| 10031 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, SLJIT_MEM1(STACK_TOP), STACK(-framesize - 2)); |
| 10032 | add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL)); |
| 10033 | OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, (framesize - 1) * sizeof(sljit_sw)); |
| 10034 | } |
| 10035 | } |
| 10036 | |
| 10037 | if (opcode == OP_ASSERT_NOT || opcode == OP_ASSERTBACK_NOT) |
| 10038 | { |
| 10039 | /* We know that STR_PTR was stored on the top of the stack. */ |
| 10040 | if (conditional) |
| 10041 | { |
| 10042 | if (extrasize > 0) |
| 10043 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), needs_control_head ? STACK(-2) : STACK(-1)); |
| 10044 | } |
| 10045 | else if (bra == OP_BRAZERO) |
| 10046 | { |
| 10047 | if (framesize < 0) |
| 10048 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(-extrasize)); |
| 10049 | else |
| 10050 | { |
| 10051 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(-framesize - 1)); |
| 10052 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(-framesize - extrasize)); |
| 10053 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, TMP1, 0); |
| 10054 | } |
| 10055 | OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_sw)); |
| 10056 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0); |
| 10057 | } |
| 10058 | else if (framesize >= 0) |
| 10059 | { |
| 10060 | /* For OP_BRA and OP_BRAMINZERO. */ |
| 10061 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_MEM1(STACK_TOP), STACK(-framesize - 1)); |
| 10062 | } |
| 10063 | } |
| 10064 | add_jump(compiler, found, JUMP(SLJIT_JUMP)); |
| 10065 | |
| 10066 | compile_backtrackingpath(common, altbacktrack.top); |
| 10067 | if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler))) |
| 10068 | { |
| 10069 | if (local_quit_available) |
| 10070 | { |
| 10071 | common->local_quit_available = save_local_quit_available; |
| 10072 | common->quit_label = save_quit_label; |
| 10073 | common->quit = save_quit; |
| 10074 | } |
| 10075 | common->in_positive_assertion = save_in_positive_assertion; |
| 10076 | common->then_trap = save_then_trap; |
| 10077 | common->accept_label = save_accept_label; |
| 10078 | common->positive_assertion_quit = save_positive_assertion_quit; |
| 10079 | common->accept = save_accept; |
| 10080 | return NULL; |
| 10081 | } |
| 10082 | set_jumps(altbacktrack.topbacktracks, LABEL()); |
| 10083 | |
| 10084 | if (*cc != OP_ALT) |
| 10085 | break; |
| 10086 | |
| 10087 | ccbegin = cc; |
| 10088 | cc += GET(cc, 1); |
| 10089 | } |
| 10090 | |
| 10091 | if (local_quit_available) |
| 10092 | { |
| 10093 | SLJIT_ASSERT(common->positive_assertion_quit == NULL); |
| 10094 | /* Makes the check less complicated below. */ |
| 10095 | common->positive_assertion_quit = common->quit; |
| 10096 | } |
| 10097 | |
| 10098 | /* None of them matched. */ |
| 10099 | if (common->positive_assertion_quit != NULL) |
| 10100 | { |
| 10101 | jump = JUMP(SLJIT_JUMP); |
| 10102 | set_jumps(common->positive_assertion_quit, LABEL()); |
| 10103 | SLJIT_ASSERT(framesize != no_stack); |
| 10104 | if (framesize < 0) |
| 10105 | OP2(SLJIT_SUB, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_IMM, extrasize * sizeof(sljit_sw)); |
| 10106 | else |
| 10107 | { |
| 10108 | OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); |
| 10109 | add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL)); |
| 10110 | OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, (extrasize + 1) * sizeof(sljit_sw)); |
| 10111 | } |
| 10112 | JUMPHERE(jump); |
| 10113 | } |
| 10114 | |
| 10115 | if (needs_control_head) |
| 10116 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, SLJIT_MEM1(STACK_TOP), STACK(1)); |
| 10117 | |
| 10118 | if (opcode == OP_ASSERT || opcode == OP_ASSERTBACK) |
| 10119 | { |
| 10120 | /* Assert is failed. */ |
| 10121 | if ((conditional && extrasize > 0) || bra == OP_BRAZERO) |
| 10122 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 10123 | |
| 10124 | if (framesize < 0) |
| 10125 | { |
| 10126 | /* The topmost item should be 0. */ |
| 10127 | if (bra == OP_BRAZERO) |
| 10128 | { |
| 10129 | if (extrasize == 2) |
| 10130 | free_stack(common, 1); |
| 10131 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0); |
| 10132 | } |
| 10133 | else if (extrasize > 0) |
| 10134 | free_stack(common, extrasize); |
| 10135 | } |
| 10136 | else |
| 10137 | { |
| 10138 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(extrasize - 1)); |
| 10139 | /* The topmost item should be 0. */ |
| 10140 | if (bra == OP_BRAZERO) |
| 10141 | { |
| 10142 | free_stack(common, framesize + extrasize - 1); |
| 10143 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0); |
| 10144 | } |
| 10145 | else |
| 10146 | free_stack(common, framesize + extrasize); |
| 10147 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, TMP1, 0); |
| 10148 | } |
| 10149 | jump = JUMP(SLJIT_JUMP); |
| 10150 | if (bra != OP_BRAZERO) |
| 10151 | add_jump(compiler, target, jump); |
| 10152 | |
| 10153 | /* Assert is successful. */ |
| 10154 | set_jumps(tmp, LABEL()); |
| 10155 | if (framesize < 0) |
| 10156 | { |
| 10157 | /* We know that STR_PTR was stored on the top of the stack. */ |
| 10158 | if (extrasize > 0) |
| 10159 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(-extrasize)); |
| 10160 | |
| 10161 | /* Keep the STR_PTR on the top of the stack. */ |
| 10162 | if (bra == OP_BRAZERO) |
| 10163 | { |
| 10164 | OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_sw)); |
| 10165 | if (extrasize == 2) |
| 10166 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0); |
| 10167 | } |
| 10168 | else if (bra == OP_BRAMINZERO) |
| 10169 | { |
| 10170 | OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_sw)); |
| 10171 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0); |
| 10172 | } |
| 10173 | } |
| 10174 | else |
| 10175 | { |
| 10176 | if (bra == OP_BRA) |
| 10177 | { |
| 10178 | /* We don't need to keep the STR_PTR, only the previous private_data_ptr. */ |
| 10179 | OP2(SLJIT_SUB, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_IMM, (framesize + 1) * sizeof(sljit_sw)); |
| 10180 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(-extrasize + 1)); |
| 10181 | } |
| 10182 | else |
| 10183 | { |
| 10184 | /* We don't need to keep the STR_PTR, only the previous private_data_ptr. */ |
| 10185 | OP2(SLJIT_SUB, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_IMM, (framesize + 2) * sizeof(sljit_sw)); |
| 10186 | if (extrasize == 2) |
| 10187 | { |
| 10188 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 10189 | if (bra == OP_BRAMINZERO) |
| 10190 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0); |
| 10191 | } |
| 10192 | else |
| 10193 | { |
| 10194 | SLJIT_ASSERT(extrasize == 3); |
| 10195 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(-1)); |
| 10196 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), bra == OP_BRAZERO ? STR_PTR : SLJIT_IMM, 0); |
| 10197 | } |
| 10198 | } |
| 10199 | } |
| 10200 | |
| 10201 | if (bra == OP_BRAZERO) |
| 10202 | { |
| 10203 | backtrack->matchingpath = LABEL(); |
| 10204 | SET_LABEL(jump, backtrack->matchingpath); |
| 10205 | } |
| 10206 | else if (bra == OP_BRAMINZERO) |
| 10207 | { |
| 10208 | JUMPTO(SLJIT_JUMP, backtrack->matchingpath); |
| 10209 | JUMPHERE(brajump); |
| 10210 | if (framesize >= 0) |
| 10211 | { |
| 10212 | OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); |
| 10213 | add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL)); |
| 10214 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(-2)); |
| 10215 | OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, (framesize - 1) * sizeof(sljit_sw)); |
| 10216 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, TMP1, 0); |
| 10217 | } |
| 10218 | set_jumps(backtrack->common.topbacktracks, LABEL()); |
| 10219 | } |
| 10220 | } |
| 10221 | else |
| 10222 | { |
| 10223 | /* AssertNot is successful. */ |
| 10224 | if (framesize < 0) |
| 10225 | { |
| 10226 | if (extrasize > 0) |
| 10227 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 10228 | |
| 10229 | if (bra != OP_BRA) |
| 10230 | { |
| 10231 | if (extrasize == 2) |
| 10232 | free_stack(common, 1); |
| 10233 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0); |
| 10234 | } |
| 10235 | else if (extrasize > 0) |
| 10236 | free_stack(common, extrasize); |
| 10237 | } |
| 10238 | else |
| 10239 | { |
| 10240 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 10241 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(extrasize - 1)); |
| 10242 | /* The topmost item should be 0. */ |
| 10243 | if (bra != OP_BRA) |
| 10244 | { |
| 10245 | free_stack(common, framesize + extrasize - 1); |
| 10246 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0); |
| 10247 | } |
| 10248 | else |
| 10249 | free_stack(common, framesize + extrasize); |
| 10250 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, TMP1, 0); |
| 10251 | } |
| 10252 | |
| 10253 | if (bra == OP_BRAZERO) |
| 10254 | backtrack->matchingpath = LABEL(); |
| 10255 | else if (bra == OP_BRAMINZERO) |
| 10256 | { |
| 10257 | JUMPTO(SLJIT_JUMP, backtrack->matchingpath); |
| 10258 | JUMPHERE(brajump); |
| 10259 | } |
| 10260 | |
| 10261 | if (bra != OP_BRA) |
| 10262 | { |
| 10263 | SLJIT_ASSERT(found == &backtrack->common.topbacktracks); |
| 10264 | set_jumps(backtrack->common.topbacktracks, LABEL()); |
| 10265 | backtrack->common.topbacktracks = NULL; |
| 10266 | } |
| 10267 | } |
| 10268 | |
| 10269 | if (local_quit_available) |
| 10270 | { |
| 10271 | common->local_quit_available = save_local_quit_available; |
| 10272 | common->quit_label = save_quit_label; |
| 10273 | common->quit = save_quit; |
| 10274 | } |
| 10275 | common->in_positive_assertion = save_in_positive_assertion; |
| 10276 | common->then_trap = save_then_trap; |
| 10277 | common->accept_label = save_accept_label; |
| 10278 | common->positive_assertion_quit = save_positive_assertion_quit; |
| 10279 | common->accept = save_accept; |
| 10280 | return cc + 1 + LINK_SIZE; |
| 10281 | } |
| 10282 | |
| 10283 | static SLJIT_INLINE void match_once_common(compiler_common *common, PCRE2_UCHAR ket, int framesize, int private_data_ptr, BOOL has_alternatives, BOOL needs_control_head) |
| 10284 | { |
| 10285 | DEFINE_COMPILER; |
| 10286 | int stacksize; |
| 10287 | |
| 10288 | if (framesize < 0) |
| 10289 | { |
| 10290 | if (framesize == no_frame) |
| 10291 | OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); |
| 10292 | else |
| 10293 | { |
| 10294 | stacksize = needs_control_head ? 1 : 0; |
| 10295 | if (ket != OP_KET || has_alternatives) |
| 10296 | stacksize++; |
| 10297 | |
| 10298 | if (stacksize > 0) |
| 10299 | free_stack(common, stacksize); |
| 10300 | } |
| 10301 | |
| 10302 | if (needs_control_head) |
| 10303 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), (ket != OP_KET || has_alternatives) ? STACK(-2) : STACK(-1)); |
| 10304 | |
| 10305 | /* TMP2 which is set here used by OP_KETRMAX below. */ |
| 10306 | if (ket == OP_KETRMAX) |
| 10307 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(-1)); |
| 10308 | else if (ket == OP_KETRMIN) |
| 10309 | { |
| 10310 | /* Move the STR_PTR to the private_data_ptr. */ |
| 10311 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_MEM1(STACK_TOP), STACK(-1)); |
| 10312 | } |
| 10313 | } |
| 10314 | else |
| 10315 | { |
| 10316 | stacksize = (ket != OP_KET || has_alternatives) ? 2 : 1; |
| 10317 | OP2(SLJIT_SUB, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_IMM, (framesize + stacksize) * sizeof(sljit_sw)); |
| 10318 | if (needs_control_head) |
| 10319 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(-1)); |
| 10320 | |
| 10321 | if (ket == OP_KETRMAX) |
| 10322 | { |
| 10323 | /* TMP2 which is set here used by OP_KETRMAX below. */ |
| 10324 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 10325 | } |
| 10326 | } |
| 10327 | if (needs_control_head) |
| 10328 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, TMP1, 0); |
| 10329 | } |
| 10330 | |
| 10331 | static SLJIT_INLINE int match_capture_common(compiler_common *common, int stacksize, int offset, int private_data_ptr) |
| 10332 | { |
| 10333 | DEFINE_COMPILER; |
| 10334 | |
| 10335 | if (common->capture_last_ptr != 0) |
| 10336 | { |
| 10337 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr); |
| 10338 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr, SLJIT_IMM, offset >> 1); |
| 10339 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), TMP1, 0); |
| 10340 | stacksize++; |
| 10341 | } |
| 10342 | if (common->optimized_cbracket[offset >> 1] == 0) |
| 10343 | { |
| 10344 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset)); |
| 10345 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1)); |
| 10346 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), TMP1, 0); |
| 10347 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); |
| 10348 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize + 1), TMP2, 0); |
| 10349 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1), STR_PTR, 0); |
| 10350 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset), TMP1, 0); |
| 10351 | stacksize += 2; |
| 10352 | } |
| 10353 | return stacksize; |
| 10354 | } |
| 10355 | |
| 10356 | static PCRE2_SPTR SLJIT_FUNC do_script_run(PCRE2_SPTR ptr, PCRE2_SPTR endptr) |
| 10357 | { |
| 10358 | if (PRIV(script_run)(ptr, endptr, FALSE)) |
| 10359 | return endptr; |
| 10360 | return NULL; |
| 10361 | } |
| 10362 | |
| 10363 | #ifdef SUPPORT_UNICODE |
| 10364 | |
| 10365 | static PCRE2_SPTR SLJIT_FUNC do_script_run_utf(PCRE2_SPTR ptr, PCRE2_SPTR endptr) |
| 10366 | { |
| 10367 | if (PRIV(script_run)(ptr, endptr, TRUE)) |
| 10368 | return endptr; |
| 10369 | return NULL; |
| 10370 | } |
| 10371 | |
| 10372 | #endif /* SUPPORT_UNICODE */ |
| 10373 | |
| 10374 | static SLJIT_INLINE void match_script_run_common(compiler_common *common, int private_data_ptr, backtrack_common *parent) |
| 10375 | { |
| 10376 | DEFINE_COMPILER; |
| 10377 | |
| 10378 | SLJIT_ASSERT(TMP1 == SLJIT_R0 && STR_PTR == SLJIT_R1); |
| 10379 | |
| 10380 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); |
| 10381 | #ifdef SUPPORT_UNICODE |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 10382 | sljit_emit_icall(compiler, SLJIT_CALL, SLJIT_ARGS2(W, W, W), SLJIT_IMM, |
| 10383 | common->utf ? SLJIT_FUNC_ADDR(do_script_run_utf) : SLJIT_FUNC_ADDR(do_script_run)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 10384 | #else |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 10385 | sljit_emit_icall(compiler, SLJIT_CALL, SLJIT_ARGS2(W, W, W), SLJIT_IMM, SLJIT_FUNC_ADDR(do_script_run)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 10386 | #endif |
| 10387 | |
| 10388 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_RETURN_REG, 0); |
| 10389 | add_jump(compiler, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks, CMP(SLJIT_EQUAL, SLJIT_RETURN_REG, 0, SLJIT_IMM, 0)); |
| 10390 | } |
| 10391 | |
| 10392 | /* |
| 10393 | Handling bracketed expressions is probably the most complex part. |
| 10394 | |
| 10395 | Stack layout naming characters: |
| 10396 | S - Push the current STR_PTR |
| 10397 | 0 - Push a 0 (NULL) |
| 10398 | A - Push the current STR_PTR. Needed for restoring the STR_PTR |
| 10399 | before the next alternative. Not pushed if there are no alternatives. |
| 10400 | M - Any values pushed by the current alternative. Can be empty, or anything. |
| 10401 | C - Push the previous OVECTOR(i), OVECTOR(i+1) and OVECTOR_PRIV(i) to the stack. |
| 10402 | L - Push the previous local (pointed by localptr) to the stack |
| 10403 | () - opional values stored on the stack |
| 10404 | ()* - optonal, can be stored multiple times |
| 10405 | |
| 10406 | The following list shows the regular expression templates, their PCRE byte codes |
| 10407 | and stack layout supported by pcre-sljit. |
| 10408 | |
| 10409 | (?:) OP_BRA | OP_KET A M |
| 10410 | () OP_CBRA | OP_KET C M |
| 10411 | (?:)+ OP_BRA | OP_KETRMAX 0 A M S ( A M S )* |
| 10412 | OP_SBRA | OP_KETRMAX 0 L M S ( L M S )* |
| 10413 | (?:)+? OP_BRA | OP_KETRMIN 0 A M S ( A M S )* |
| 10414 | OP_SBRA | OP_KETRMIN 0 L M S ( L M S )* |
| 10415 | ()+ OP_CBRA | OP_KETRMAX 0 C M S ( C M S )* |
| 10416 | OP_SCBRA | OP_KETRMAX 0 C M S ( C M S )* |
| 10417 | ()+? OP_CBRA | OP_KETRMIN 0 C M S ( C M S )* |
| 10418 | OP_SCBRA | OP_KETRMIN 0 C M S ( C M S )* |
| 10419 | (?:)? OP_BRAZERO | OP_BRA | OP_KET S ( A M 0 ) |
| 10420 | (?:)?? OP_BRAMINZERO | OP_BRA | OP_KET S ( A M 0 ) |
| 10421 | ()? OP_BRAZERO | OP_CBRA | OP_KET S ( C M 0 ) |
| 10422 | ()?? OP_BRAMINZERO | OP_CBRA | OP_KET S ( C M 0 ) |
| 10423 | (?:)* OP_BRAZERO | OP_BRA | OP_KETRMAX S 0 ( A M S )* |
| 10424 | OP_BRAZERO | OP_SBRA | OP_KETRMAX S 0 ( L M S )* |
| 10425 | (?:)*? OP_BRAMINZERO | OP_BRA | OP_KETRMIN S 0 ( A M S )* |
| 10426 | OP_BRAMINZERO | OP_SBRA | OP_KETRMIN S 0 ( L M S )* |
| 10427 | ()* OP_BRAZERO | OP_CBRA | OP_KETRMAX S 0 ( C M S )* |
| 10428 | OP_BRAZERO | OP_SCBRA | OP_KETRMAX S 0 ( C M S )* |
| 10429 | ()*? OP_BRAMINZERO | OP_CBRA | OP_KETRMIN S 0 ( C M S )* |
| 10430 | OP_BRAMINZERO | OP_SCBRA | OP_KETRMIN S 0 ( C M S )* |
| 10431 | |
| 10432 | |
| 10433 | Stack layout naming characters: |
| 10434 | A - Push the alternative index (starting from 0) on the stack. |
| 10435 | Not pushed if there is no alternatives. |
| 10436 | M - Any values pushed by the current alternative. Can be empty, or anything. |
| 10437 | |
| 10438 | The next list shows the possible content of a bracket: |
| 10439 | (|) OP_*BRA | OP_ALT ... M A |
| 10440 | (?()|) OP_*COND | OP_ALT M A |
| 10441 | (?>|) OP_ONCE | OP_ALT ... [stack trace] M A |
| 10442 | Or nothing, if trace is unnecessary |
| 10443 | */ |
| 10444 | |
| 10445 | static PCRE2_SPTR compile_bracket_matchingpath(compiler_common *common, PCRE2_SPTR cc, backtrack_common *parent) |
| 10446 | { |
| 10447 | DEFINE_COMPILER; |
| 10448 | backtrack_common *backtrack; |
| 10449 | PCRE2_UCHAR opcode; |
| 10450 | int private_data_ptr = 0; |
| 10451 | int offset = 0; |
| 10452 | int i, stacksize; |
| 10453 | int repeat_ptr = 0, repeat_length = 0; |
| 10454 | int repeat_type = 0, repeat_count = 0; |
| 10455 | PCRE2_SPTR ccbegin; |
| 10456 | PCRE2_SPTR matchingpath; |
| 10457 | PCRE2_SPTR slot; |
| 10458 | PCRE2_UCHAR bra = OP_BRA; |
| 10459 | PCRE2_UCHAR ket; |
| 10460 | assert_backtrack *assert; |
| 10461 | BOOL has_alternatives; |
| 10462 | BOOL needs_control_head = FALSE; |
| 10463 | struct sljit_jump *jump; |
| 10464 | struct sljit_jump *skip; |
| 10465 | struct sljit_label *rmax_label = NULL; |
| 10466 | struct sljit_jump *braminzero = NULL; |
| 10467 | |
| 10468 | PUSH_BACKTRACK(sizeof(bracket_backtrack), cc, NULL); |
| 10469 | |
| 10470 | if (*cc == OP_BRAZERO || *cc == OP_BRAMINZERO) |
| 10471 | { |
| 10472 | bra = *cc; |
| 10473 | cc++; |
| 10474 | opcode = *cc; |
| 10475 | } |
| 10476 | |
| 10477 | opcode = *cc; |
| 10478 | ccbegin = cc; |
| 10479 | matchingpath = bracketend(cc) - 1 - LINK_SIZE; |
| 10480 | ket = *matchingpath; |
| 10481 | if (ket == OP_KET && PRIVATE_DATA(matchingpath) != 0) |
| 10482 | { |
| 10483 | repeat_ptr = PRIVATE_DATA(matchingpath); |
| 10484 | repeat_length = PRIVATE_DATA(matchingpath + 1); |
| 10485 | repeat_type = PRIVATE_DATA(matchingpath + 2); |
| 10486 | repeat_count = PRIVATE_DATA(matchingpath + 3); |
| 10487 | SLJIT_ASSERT(repeat_length != 0 && repeat_type != 0 && repeat_count != 0); |
| 10488 | if (repeat_type == OP_UPTO) |
| 10489 | ket = OP_KETRMAX; |
| 10490 | if (repeat_type == OP_MINUPTO) |
| 10491 | ket = OP_KETRMIN; |
| 10492 | } |
| 10493 | |
| 10494 | matchingpath = ccbegin + 1 + LINK_SIZE; |
| 10495 | SLJIT_ASSERT(ket == OP_KET || ket == OP_KETRMAX || ket == OP_KETRMIN); |
| 10496 | SLJIT_ASSERT(!((bra == OP_BRAZERO && ket == OP_KETRMIN) || (bra == OP_BRAMINZERO && ket == OP_KETRMAX))); |
| 10497 | cc += GET(cc, 1); |
| 10498 | |
| 10499 | has_alternatives = *cc == OP_ALT; |
| 10500 | if (SLJIT_UNLIKELY(opcode == OP_COND || opcode == OP_SCOND)) |
| 10501 | { |
| 10502 | SLJIT_COMPILE_ASSERT(OP_DNRREF == OP_RREF + 1 && OP_FALSE == OP_RREF + 2 && OP_TRUE == OP_RREF + 3, |
| 10503 | compile_time_checks_must_be_grouped_together); |
| 10504 | has_alternatives = ((*matchingpath >= OP_RREF && *matchingpath <= OP_TRUE) || *matchingpath == OP_FAIL) ? FALSE : TRUE; |
| 10505 | } |
| 10506 | |
| 10507 | if (SLJIT_UNLIKELY(opcode == OP_COND) && (*cc == OP_KETRMAX || *cc == OP_KETRMIN)) |
| 10508 | opcode = OP_SCOND; |
| 10509 | |
| 10510 | if (opcode == OP_CBRA || opcode == OP_SCBRA) |
| 10511 | { |
| 10512 | /* Capturing brackets has a pre-allocated space. */ |
| 10513 | offset = GET2(ccbegin, 1 + LINK_SIZE); |
| 10514 | if (common->optimized_cbracket[offset] == 0) |
| 10515 | { |
| 10516 | private_data_ptr = OVECTOR_PRIV(offset); |
| 10517 | offset <<= 1; |
| 10518 | } |
| 10519 | else |
| 10520 | { |
| 10521 | offset <<= 1; |
| 10522 | private_data_ptr = OVECTOR(offset); |
| 10523 | } |
| 10524 | BACKTRACK_AS(bracket_backtrack)->private_data_ptr = private_data_ptr; |
| 10525 | matchingpath += IMM2_SIZE; |
| 10526 | } |
| 10527 | else if (opcode == OP_ASSERT_NA || opcode == OP_ASSERTBACK_NA || opcode == OP_ONCE || opcode == OP_SCRIPT_RUN || opcode == OP_SBRA || opcode == OP_SCOND) |
| 10528 | { |
| 10529 | /* Other brackets simply allocate the next entry. */ |
| 10530 | private_data_ptr = PRIVATE_DATA(ccbegin); |
| 10531 | SLJIT_ASSERT(private_data_ptr != 0); |
| 10532 | BACKTRACK_AS(bracket_backtrack)->private_data_ptr = private_data_ptr; |
| 10533 | if (opcode == OP_ONCE) |
| 10534 | BACKTRACK_AS(bracket_backtrack)->u.framesize = get_framesize(common, ccbegin, NULL, FALSE, &needs_control_head); |
| 10535 | } |
| 10536 | |
| 10537 | /* Instructions before the first alternative. */ |
| 10538 | stacksize = 0; |
| 10539 | if (ket == OP_KETRMAX || (ket == OP_KETRMIN && bra != OP_BRAMINZERO)) |
| 10540 | stacksize++; |
| 10541 | if (bra == OP_BRAZERO) |
| 10542 | stacksize++; |
| 10543 | |
| 10544 | if (stacksize > 0) |
| 10545 | allocate_stack(common, stacksize); |
| 10546 | |
| 10547 | stacksize = 0; |
| 10548 | if (ket == OP_KETRMAX || (ket == OP_KETRMIN && bra != OP_BRAMINZERO)) |
| 10549 | { |
| 10550 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), SLJIT_IMM, 0); |
| 10551 | stacksize++; |
| 10552 | } |
| 10553 | |
| 10554 | if (bra == OP_BRAZERO) |
| 10555 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), STR_PTR, 0); |
| 10556 | |
| 10557 | if (bra == OP_BRAMINZERO) |
| 10558 | { |
| 10559 | /* This is a backtrack path! (Since the try-path of OP_BRAMINZERO matches to the empty string) */ |
| 10560 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 10561 | if (ket != OP_KETRMIN) |
| 10562 | { |
| 10563 | free_stack(common, 1); |
| 10564 | braminzero = CMP(SLJIT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0); |
| 10565 | } |
| 10566 | else if (opcode == OP_ONCE || opcode >= OP_SBRA) |
| 10567 | { |
| 10568 | jump = CMP(SLJIT_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0); |
| 10569 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(1)); |
| 10570 | /* Nothing stored during the first run. */ |
| 10571 | skip = JUMP(SLJIT_JUMP); |
| 10572 | JUMPHERE(jump); |
| 10573 | /* Checking zero-length iteration. */ |
| 10574 | if (opcode != OP_ONCE || BACKTRACK_AS(bracket_backtrack)->u.framesize < 0) |
| 10575 | { |
| 10576 | /* When we come from outside, private_data_ptr contains the previous STR_PTR. */ |
| 10577 | braminzero = CMP(SLJIT_EQUAL, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); |
| 10578 | } |
| 10579 | else |
| 10580 | { |
| 10581 | /* Except when the whole stack frame must be saved. */ |
| 10582 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); |
| 10583 | braminzero = CMP(SLJIT_EQUAL, STR_PTR, 0, SLJIT_MEM1(TMP1), STACK(-BACKTRACK_AS(bracket_backtrack)->u.framesize - 2)); |
| 10584 | } |
| 10585 | JUMPHERE(skip); |
| 10586 | } |
| 10587 | else |
| 10588 | { |
| 10589 | jump = CMP(SLJIT_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0); |
| 10590 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(1)); |
| 10591 | JUMPHERE(jump); |
| 10592 | } |
| 10593 | } |
| 10594 | |
| 10595 | if (repeat_type != 0) |
| 10596 | { |
| 10597 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), repeat_ptr, SLJIT_IMM, repeat_count); |
| 10598 | if (repeat_type == OP_EXACT) |
| 10599 | rmax_label = LABEL(); |
| 10600 | } |
| 10601 | |
| 10602 | if (ket == OP_KETRMIN) |
| 10603 | BACKTRACK_AS(bracket_backtrack)->recursive_matchingpath = LABEL(); |
| 10604 | |
| 10605 | if (ket == OP_KETRMAX) |
| 10606 | { |
| 10607 | rmax_label = LABEL(); |
| 10608 | if (has_alternatives && opcode >= OP_BRA && opcode < OP_SBRA && repeat_type == 0) |
| 10609 | BACKTRACK_AS(bracket_backtrack)->alternative_matchingpath = rmax_label; |
| 10610 | } |
| 10611 | |
| 10612 | /* Handling capturing brackets and alternatives. */ |
| 10613 | if (opcode == OP_ONCE) |
| 10614 | { |
| 10615 | stacksize = 0; |
| 10616 | if (needs_control_head) |
| 10617 | { |
| 10618 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr); |
| 10619 | stacksize++; |
| 10620 | } |
| 10621 | |
| 10622 | if (BACKTRACK_AS(bracket_backtrack)->u.framesize < 0) |
| 10623 | { |
| 10624 | /* Neither capturing brackets nor recursions are found in the block. */ |
| 10625 | if (ket == OP_KETRMIN) |
| 10626 | { |
| 10627 | stacksize += 2; |
| 10628 | if (!needs_control_head) |
| 10629 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); |
| 10630 | } |
| 10631 | else |
| 10632 | { |
| 10633 | if (BACKTRACK_AS(bracket_backtrack)->u.framesize == no_frame) |
| 10634 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, STACK_TOP, 0); |
| 10635 | if (ket == OP_KETRMAX || has_alternatives) |
| 10636 | stacksize++; |
| 10637 | } |
| 10638 | |
| 10639 | if (stacksize > 0) |
| 10640 | allocate_stack(common, stacksize); |
| 10641 | |
| 10642 | stacksize = 0; |
| 10643 | if (needs_control_head) |
| 10644 | { |
| 10645 | stacksize++; |
| 10646 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP2, 0); |
| 10647 | } |
| 10648 | |
| 10649 | if (ket == OP_KETRMIN) |
| 10650 | { |
| 10651 | if (needs_control_head) |
| 10652 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); |
| 10653 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), STR_PTR, 0); |
| 10654 | if (BACKTRACK_AS(bracket_backtrack)->u.framesize == no_frame) |
| 10655 | OP2(SLJIT_ADD, SLJIT_MEM1(SLJIT_SP), private_data_ptr, STACK_TOP, 0, SLJIT_IMM, needs_control_head ? (2 * sizeof(sljit_sw)) : sizeof(sljit_sw)); |
| 10656 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize + 1), TMP2, 0); |
| 10657 | } |
| 10658 | else if (ket == OP_KETRMAX || has_alternatives) |
| 10659 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), STR_PTR, 0); |
| 10660 | } |
| 10661 | else |
| 10662 | { |
| 10663 | if (ket != OP_KET || has_alternatives) |
| 10664 | stacksize++; |
| 10665 | |
| 10666 | stacksize += BACKTRACK_AS(bracket_backtrack)->u.framesize + 1; |
| 10667 | allocate_stack(common, stacksize); |
| 10668 | |
| 10669 | if (needs_control_head) |
| 10670 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP2, 0); |
| 10671 | |
| 10672 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); |
| 10673 | OP2(SLJIT_ADD, TMP2, 0, STACK_TOP, 0, SLJIT_IMM, stacksize * sizeof(sljit_sw)); |
| 10674 | |
| 10675 | stacksize = needs_control_head ? 1 : 0; |
| 10676 | if (ket != OP_KET || has_alternatives) |
| 10677 | { |
| 10678 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), STR_PTR, 0); |
| 10679 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, TMP2, 0); |
| 10680 | stacksize++; |
| 10681 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), TMP1, 0); |
| 10682 | } |
| 10683 | else |
| 10684 | { |
| 10685 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, TMP2, 0); |
| 10686 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), TMP1, 0); |
| 10687 | } |
| 10688 | init_frame(common, ccbegin, NULL, BACKTRACK_AS(bracket_backtrack)->u.framesize + stacksize, stacksize + 1); |
| 10689 | } |
| 10690 | } |
| 10691 | else if (opcode == OP_CBRA || opcode == OP_SCBRA) |
| 10692 | { |
| 10693 | /* Saving the previous values. */ |
| 10694 | if (common->optimized_cbracket[offset >> 1] != 0) |
| 10695 | { |
| 10696 | SLJIT_ASSERT(private_data_ptr == OVECTOR(offset)); |
| 10697 | allocate_stack(common, 2); |
| 10698 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); |
| 10699 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr + sizeof(sljit_sw)); |
| 10700 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, STR_PTR, 0); |
| 10701 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP1, 0); |
| 10702 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), TMP2, 0); |
| 10703 | } |
| 10704 | else |
| 10705 | { |
| 10706 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); |
| 10707 | allocate_stack(common, 1); |
| 10708 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, STR_PTR, 0); |
| 10709 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP2, 0); |
| 10710 | } |
| 10711 | } |
| 10712 | else if (opcode == OP_ASSERT_NA || opcode == OP_ASSERTBACK_NA || opcode == OP_SCRIPT_RUN || opcode == OP_SBRA || opcode == OP_SCOND) |
| 10713 | { |
| 10714 | /* Saving the previous value. */ |
| 10715 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); |
| 10716 | allocate_stack(common, 1); |
| 10717 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, STR_PTR, 0); |
| 10718 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP2, 0); |
| 10719 | } |
| 10720 | else if (has_alternatives) |
| 10721 | { |
| 10722 | /* Pushing the starting string pointer. */ |
| 10723 | allocate_stack(common, 1); |
| 10724 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0); |
| 10725 | } |
| 10726 | |
| 10727 | /* Generating code for the first alternative. */ |
| 10728 | if (opcode == OP_COND || opcode == OP_SCOND) |
| 10729 | { |
| 10730 | if (*matchingpath == OP_CREF) |
| 10731 | { |
| 10732 | SLJIT_ASSERT(has_alternatives); |
| 10733 | add_jump(compiler, &(BACKTRACK_AS(bracket_backtrack)->u.condfailed), |
| 10734 | CMP(SLJIT_EQUAL, SLJIT_MEM1(SLJIT_SP), OVECTOR(GET2(matchingpath, 1) << 1), SLJIT_MEM1(SLJIT_SP), OVECTOR(1))); |
| 10735 | matchingpath += 1 + IMM2_SIZE; |
| 10736 | } |
| 10737 | else if (*matchingpath == OP_DNCREF) |
| 10738 | { |
| 10739 | SLJIT_ASSERT(has_alternatives); |
| 10740 | |
| 10741 | i = GET2(matchingpath, 1 + IMM2_SIZE); |
| 10742 | slot = common->name_table + GET2(matchingpath, 1) * common->name_entry_size; |
| 10743 | OP1(SLJIT_MOV, TMP3, 0, STR_PTR, 0); |
| 10744 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(1)); |
| 10745 | OP2(SLJIT_SUB | SLJIT_SET_Z, TMP2, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(GET2(slot, 0) << 1), TMP1, 0); |
| 10746 | slot += common->name_entry_size; |
| 10747 | i--; |
| 10748 | while (i-- > 0) |
| 10749 | { |
| 10750 | OP2(SLJIT_SUB, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(GET2(slot, 0) << 1), TMP1, 0); |
| 10751 | OP2(SLJIT_OR | SLJIT_SET_Z, TMP2, 0, TMP2, 0, STR_PTR, 0); |
| 10752 | slot += common->name_entry_size; |
| 10753 | } |
| 10754 | OP1(SLJIT_MOV, STR_PTR, 0, TMP3, 0); |
| 10755 | add_jump(compiler, &(BACKTRACK_AS(bracket_backtrack)->u.condfailed), JUMP(SLJIT_ZERO)); |
| 10756 | matchingpath += 1 + 2 * IMM2_SIZE; |
| 10757 | } |
| 10758 | else if ((*matchingpath >= OP_RREF && *matchingpath <= OP_TRUE) || *matchingpath == OP_FAIL) |
| 10759 | { |
| 10760 | /* Never has other case. */ |
| 10761 | BACKTRACK_AS(bracket_backtrack)->u.condfailed = NULL; |
| 10762 | SLJIT_ASSERT(!has_alternatives); |
| 10763 | |
| 10764 | if (*matchingpath == OP_TRUE) |
| 10765 | { |
| 10766 | stacksize = 1; |
| 10767 | matchingpath++; |
| 10768 | } |
| 10769 | else if (*matchingpath == OP_FALSE || *matchingpath == OP_FAIL) |
| 10770 | stacksize = 0; |
| 10771 | else if (*matchingpath == OP_RREF) |
| 10772 | { |
| 10773 | stacksize = GET2(matchingpath, 1); |
| 10774 | if (common->currententry == NULL) |
| 10775 | stacksize = 0; |
| 10776 | else if (stacksize == RREF_ANY) |
| 10777 | stacksize = 1; |
| 10778 | else if (common->currententry->start == 0) |
| 10779 | stacksize = stacksize == 0; |
| 10780 | else |
| 10781 | stacksize = stacksize == (int)GET2(common->start, common->currententry->start + 1 + LINK_SIZE); |
| 10782 | |
| 10783 | if (stacksize != 0) |
| 10784 | matchingpath += 1 + IMM2_SIZE; |
| 10785 | } |
| 10786 | else |
| 10787 | { |
| 10788 | if (common->currententry == NULL || common->currententry->start == 0) |
| 10789 | stacksize = 0; |
| 10790 | else |
| 10791 | { |
| 10792 | stacksize = GET2(matchingpath, 1 + IMM2_SIZE); |
| 10793 | slot = common->name_table + GET2(matchingpath, 1) * common->name_entry_size; |
| 10794 | i = (int)GET2(common->start, common->currententry->start + 1 + LINK_SIZE); |
| 10795 | while (stacksize > 0) |
| 10796 | { |
| 10797 | if ((int)GET2(slot, 0) == i) |
| 10798 | break; |
| 10799 | slot += common->name_entry_size; |
| 10800 | stacksize--; |
| 10801 | } |
| 10802 | } |
| 10803 | |
| 10804 | if (stacksize != 0) |
| 10805 | matchingpath += 1 + 2 * IMM2_SIZE; |
| 10806 | } |
| 10807 | |
| 10808 | /* The stacksize == 0 is a common "else" case. */ |
| 10809 | if (stacksize == 0) |
| 10810 | { |
| 10811 | if (*cc == OP_ALT) |
| 10812 | { |
| 10813 | matchingpath = cc + 1 + LINK_SIZE; |
| 10814 | cc += GET(cc, 1); |
| 10815 | } |
| 10816 | else |
| 10817 | matchingpath = cc; |
| 10818 | } |
| 10819 | } |
| 10820 | else |
| 10821 | { |
| 10822 | SLJIT_ASSERT(has_alternatives && *matchingpath >= OP_ASSERT && *matchingpath <= OP_ASSERTBACK_NOT); |
| 10823 | /* Similar code as PUSH_BACKTRACK macro. */ |
| 10824 | assert = sljit_alloc_memory(compiler, sizeof(assert_backtrack)); |
| 10825 | if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler))) |
| 10826 | return NULL; |
| 10827 | memset(assert, 0, sizeof(assert_backtrack)); |
| 10828 | assert->common.cc = matchingpath; |
| 10829 | BACKTRACK_AS(bracket_backtrack)->u.assert = assert; |
| 10830 | matchingpath = compile_assert_matchingpath(common, matchingpath, assert, TRUE); |
| 10831 | } |
| 10832 | } |
| 10833 | |
| 10834 | compile_matchingpath(common, matchingpath, cc, backtrack); |
| 10835 | if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler))) |
| 10836 | return NULL; |
| 10837 | |
| 10838 | if (opcode == OP_ASSERT_NA || opcode == OP_ASSERTBACK_NA) |
| 10839 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); |
| 10840 | |
| 10841 | if (opcode == OP_ONCE) |
| 10842 | match_once_common(common, ket, BACKTRACK_AS(bracket_backtrack)->u.framesize, private_data_ptr, has_alternatives, needs_control_head); |
| 10843 | |
| 10844 | if (opcode == OP_SCRIPT_RUN) |
| 10845 | match_script_run_common(common, private_data_ptr, backtrack); |
| 10846 | |
| 10847 | stacksize = 0; |
| 10848 | if (repeat_type == OP_MINUPTO) |
| 10849 | { |
| 10850 | /* We need to preserve the counter. TMP2 will be used below. */ |
| 10851 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), repeat_ptr); |
| 10852 | stacksize++; |
| 10853 | } |
| 10854 | if (ket != OP_KET || bra != OP_BRA) |
| 10855 | stacksize++; |
| 10856 | if (offset != 0) |
| 10857 | { |
| 10858 | if (common->capture_last_ptr != 0) |
| 10859 | stacksize++; |
| 10860 | if (common->optimized_cbracket[offset >> 1] == 0) |
| 10861 | stacksize += 2; |
| 10862 | } |
| 10863 | if (has_alternatives && opcode != OP_ONCE) |
| 10864 | stacksize++; |
| 10865 | |
| 10866 | if (stacksize > 0) |
| 10867 | allocate_stack(common, stacksize); |
| 10868 | |
| 10869 | stacksize = 0; |
| 10870 | if (repeat_type == OP_MINUPTO) |
| 10871 | { |
| 10872 | /* TMP2 was set above. */ |
| 10873 | OP2(SLJIT_SUB, SLJIT_MEM1(STACK_TOP), STACK(stacksize), TMP2, 0, SLJIT_IMM, 1); |
| 10874 | stacksize++; |
| 10875 | } |
| 10876 | |
| 10877 | if (ket != OP_KET || bra != OP_BRA) |
| 10878 | { |
| 10879 | if (ket != OP_KET) |
| 10880 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), STR_PTR, 0); |
| 10881 | else |
| 10882 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), SLJIT_IMM, 0); |
| 10883 | stacksize++; |
| 10884 | } |
| 10885 | |
| 10886 | if (offset != 0) |
| 10887 | stacksize = match_capture_common(common, stacksize, offset, private_data_ptr); |
| 10888 | |
| 10889 | /* Skip and count the other alternatives. */ |
| 10890 | i = 1; |
| 10891 | while (*cc == OP_ALT) |
| 10892 | { |
| 10893 | cc += GET(cc, 1); |
| 10894 | i++; |
| 10895 | } |
| 10896 | |
| 10897 | if (has_alternatives) |
| 10898 | { |
| 10899 | if (opcode != OP_ONCE) |
| 10900 | { |
| 10901 | if (i <= 3) |
| 10902 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), SLJIT_IMM, 0); |
| 10903 | else |
| 10904 | BACKTRACK_AS(bracket_backtrack)->u.matching_put_label = sljit_emit_put_label(compiler, SLJIT_MEM1(STACK_TOP), STACK(stacksize)); |
| 10905 | } |
| 10906 | if (ket != OP_KETRMAX) |
| 10907 | BACKTRACK_AS(bracket_backtrack)->alternative_matchingpath = LABEL(); |
| 10908 | } |
| 10909 | |
| 10910 | /* Must be after the matchingpath label. */ |
| 10911 | if (offset != 0 && common->optimized_cbracket[offset >> 1] != 0) |
| 10912 | { |
| 10913 | SLJIT_ASSERT(private_data_ptr == OVECTOR(offset + 0)); |
| 10914 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1), STR_PTR, 0); |
| 10915 | } |
| 10916 | |
| 10917 | if (ket == OP_KETRMAX) |
| 10918 | { |
| 10919 | if (repeat_type != 0) |
| 10920 | { |
| 10921 | if (has_alternatives) |
| 10922 | BACKTRACK_AS(bracket_backtrack)->alternative_matchingpath = LABEL(); |
| 10923 | OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_MEM1(SLJIT_SP), repeat_ptr, SLJIT_MEM1(SLJIT_SP), repeat_ptr, SLJIT_IMM, 1); |
| 10924 | JUMPTO(SLJIT_NOT_ZERO, rmax_label); |
| 10925 | /* Drop STR_PTR for greedy plus quantifier. */ |
| 10926 | if (opcode != OP_ONCE) |
| 10927 | free_stack(common, 1); |
| 10928 | } |
| 10929 | else if (opcode < OP_BRA || opcode >= OP_SBRA) |
| 10930 | { |
| 10931 | if (has_alternatives) |
| 10932 | BACKTRACK_AS(bracket_backtrack)->alternative_matchingpath = LABEL(); |
| 10933 | |
| 10934 | /* Checking zero-length iteration. */ |
| 10935 | if (opcode != OP_ONCE) |
| 10936 | { |
| 10937 | /* This case includes opcodes such as OP_SCRIPT_RUN. */ |
| 10938 | CMPTO(SLJIT_NOT_EQUAL, SLJIT_MEM1(SLJIT_SP), private_data_ptr, STR_PTR, 0, rmax_label); |
| 10939 | /* Drop STR_PTR for greedy plus quantifier. */ |
| 10940 | if (bra != OP_BRAZERO) |
| 10941 | free_stack(common, 1); |
| 10942 | } |
| 10943 | else |
| 10944 | /* TMP2 must contain the starting STR_PTR. */ |
| 10945 | CMPTO(SLJIT_NOT_EQUAL, TMP2, 0, STR_PTR, 0, rmax_label); |
| 10946 | } |
| 10947 | else |
| 10948 | JUMPTO(SLJIT_JUMP, rmax_label); |
| 10949 | BACKTRACK_AS(bracket_backtrack)->recursive_matchingpath = LABEL(); |
| 10950 | } |
| 10951 | |
| 10952 | if (repeat_type == OP_EXACT) |
| 10953 | { |
| 10954 | count_match(common); |
| 10955 | OP2(SLJIT_SUB | SLJIT_SET_Z, SLJIT_MEM1(SLJIT_SP), repeat_ptr, SLJIT_MEM1(SLJIT_SP), repeat_ptr, SLJIT_IMM, 1); |
| 10956 | JUMPTO(SLJIT_NOT_ZERO, rmax_label); |
| 10957 | } |
| 10958 | else if (repeat_type == OP_UPTO) |
| 10959 | { |
| 10960 | /* We need to preserve the counter. */ |
| 10961 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), repeat_ptr); |
| 10962 | allocate_stack(common, 1); |
| 10963 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP2, 0); |
| 10964 | } |
| 10965 | |
| 10966 | if (bra == OP_BRAZERO) |
| 10967 | BACKTRACK_AS(bracket_backtrack)->zero_matchingpath = LABEL(); |
| 10968 | |
| 10969 | if (bra == OP_BRAMINZERO) |
| 10970 | { |
| 10971 | /* This is a backtrack path! (From the viewpoint of OP_BRAMINZERO) */ |
| 10972 | JUMPTO(SLJIT_JUMP, ((braminzero_backtrack *)parent)->matchingpath); |
| 10973 | if (braminzero != NULL) |
| 10974 | { |
| 10975 | JUMPHERE(braminzero); |
| 10976 | /* We need to release the end pointer to perform the |
| 10977 | backtrack for the zero-length iteration. When |
| 10978 | framesize is < 0, OP_ONCE will do the release itself. */ |
| 10979 | if (opcode == OP_ONCE && BACKTRACK_AS(bracket_backtrack)->u.framesize >= 0) |
| 10980 | { |
| 10981 | OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); |
| 10982 | add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL)); |
| 10983 | OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, (BACKTRACK_AS(bracket_backtrack)->u.framesize - 1) * sizeof(sljit_sw)); |
| 10984 | } |
| 10985 | else if (ket == OP_KETRMIN && opcode != OP_ONCE) |
| 10986 | free_stack(common, 1); |
| 10987 | } |
| 10988 | /* Continue to the normal backtrack. */ |
| 10989 | } |
| 10990 | |
| 10991 | if ((ket != OP_KET && bra != OP_BRAMINZERO) || bra == OP_BRAZERO) |
| 10992 | count_match(common); |
| 10993 | |
| 10994 | cc += 1 + LINK_SIZE; |
| 10995 | |
| 10996 | if (opcode == OP_ONCE) |
| 10997 | { |
| 10998 | /* We temporarily encode the needs_control_head in the lowest bit. |
| 10999 | Note: on the target architectures of SLJIT the ((x << 1) >> 1) returns |
| 11000 | the same value for small signed numbers (including negative numbers). */ |
| 11001 | BACKTRACK_AS(bracket_backtrack)->u.framesize = (int)((unsigned)BACKTRACK_AS(bracket_backtrack)->u.framesize << 1) | (needs_control_head ? 1 : 0); |
| 11002 | } |
| 11003 | return cc + repeat_length; |
| 11004 | } |
| 11005 | |
| 11006 | static PCRE2_SPTR compile_bracketpos_matchingpath(compiler_common *common, PCRE2_SPTR cc, backtrack_common *parent) |
| 11007 | { |
| 11008 | DEFINE_COMPILER; |
| 11009 | backtrack_common *backtrack; |
| 11010 | PCRE2_UCHAR opcode; |
| 11011 | int private_data_ptr; |
| 11012 | int cbraprivptr = 0; |
| 11013 | BOOL needs_control_head; |
| 11014 | int framesize; |
| 11015 | int stacksize; |
| 11016 | int offset = 0; |
| 11017 | BOOL zero = FALSE; |
| 11018 | PCRE2_SPTR ccbegin = NULL; |
| 11019 | int stack; /* Also contains the offset of control head. */ |
| 11020 | struct sljit_label *loop = NULL; |
| 11021 | struct jump_list *emptymatch = NULL; |
| 11022 | |
| 11023 | PUSH_BACKTRACK(sizeof(bracketpos_backtrack), cc, NULL); |
| 11024 | if (*cc == OP_BRAPOSZERO) |
| 11025 | { |
| 11026 | zero = TRUE; |
| 11027 | cc++; |
| 11028 | } |
| 11029 | |
| 11030 | opcode = *cc; |
| 11031 | private_data_ptr = PRIVATE_DATA(cc); |
| 11032 | SLJIT_ASSERT(private_data_ptr != 0); |
| 11033 | BACKTRACK_AS(bracketpos_backtrack)->private_data_ptr = private_data_ptr; |
| 11034 | switch(opcode) |
| 11035 | { |
| 11036 | case OP_BRAPOS: |
| 11037 | case OP_SBRAPOS: |
| 11038 | ccbegin = cc + 1 + LINK_SIZE; |
| 11039 | break; |
| 11040 | |
| 11041 | case OP_CBRAPOS: |
| 11042 | case OP_SCBRAPOS: |
| 11043 | offset = GET2(cc, 1 + LINK_SIZE); |
| 11044 | /* This case cannot be optimized in the same was as |
| 11045 | normal capturing brackets. */ |
| 11046 | SLJIT_ASSERT(common->optimized_cbracket[offset] == 0); |
| 11047 | cbraprivptr = OVECTOR_PRIV(offset); |
| 11048 | offset <<= 1; |
| 11049 | ccbegin = cc + 1 + LINK_SIZE + IMM2_SIZE; |
| 11050 | break; |
| 11051 | |
| 11052 | default: |
| 11053 | SLJIT_UNREACHABLE(); |
| 11054 | break; |
| 11055 | } |
| 11056 | |
| 11057 | framesize = get_framesize(common, cc, NULL, FALSE, &needs_control_head); |
| 11058 | BACKTRACK_AS(bracketpos_backtrack)->framesize = framesize; |
| 11059 | if (framesize < 0) |
| 11060 | { |
| 11061 | if (offset != 0) |
| 11062 | { |
| 11063 | stacksize = 2; |
| 11064 | if (common->capture_last_ptr != 0) |
| 11065 | stacksize++; |
| 11066 | } |
| 11067 | else |
| 11068 | stacksize = 1; |
| 11069 | |
| 11070 | if (needs_control_head) |
| 11071 | stacksize++; |
| 11072 | if (!zero) |
| 11073 | stacksize++; |
| 11074 | |
| 11075 | BACKTRACK_AS(bracketpos_backtrack)->stacksize = stacksize; |
| 11076 | allocate_stack(common, stacksize); |
| 11077 | if (framesize == no_frame) |
| 11078 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, STACK_TOP, 0); |
| 11079 | |
| 11080 | stack = 0; |
| 11081 | if (offset != 0) |
| 11082 | { |
| 11083 | stack = 2; |
| 11084 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset)); |
| 11085 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1)); |
| 11086 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP1, 0); |
| 11087 | if (common->capture_last_ptr != 0) |
| 11088 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr); |
| 11089 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), TMP2, 0); |
| 11090 | if (needs_control_head) |
| 11091 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr); |
| 11092 | if (common->capture_last_ptr != 0) |
| 11093 | { |
| 11094 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(2), TMP1, 0); |
| 11095 | stack = 3; |
| 11096 | } |
| 11097 | } |
| 11098 | else |
| 11099 | { |
| 11100 | if (needs_control_head) |
| 11101 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr); |
| 11102 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0); |
| 11103 | stack = 1; |
| 11104 | } |
| 11105 | |
| 11106 | if (needs_control_head) |
| 11107 | stack++; |
| 11108 | if (!zero) |
| 11109 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stack), SLJIT_IMM, 1); |
| 11110 | if (needs_control_head) |
| 11111 | { |
| 11112 | stack--; |
| 11113 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stack), TMP2, 0); |
| 11114 | } |
| 11115 | } |
| 11116 | else |
| 11117 | { |
| 11118 | stacksize = framesize + 1; |
| 11119 | if (!zero) |
| 11120 | stacksize++; |
| 11121 | if (needs_control_head) |
| 11122 | stacksize++; |
| 11123 | if (offset == 0) |
| 11124 | stacksize++; |
| 11125 | BACKTRACK_AS(bracketpos_backtrack)->stacksize = stacksize; |
| 11126 | |
| 11127 | allocate_stack(common, stacksize); |
| 11128 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); |
| 11129 | if (needs_control_head) |
| 11130 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr); |
| 11131 | OP2(SLJIT_ADD, SLJIT_MEM1(SLJIT_SP), private_data_ptr, STACK_TOP, 0, SLJIT_IMM, stacksize * sizeof(sljit_sw)); |
| 11132 | |
| 11133 | stack = 0; |
| 11134 | if (!zero) |
| 11135 | { |
| 11136 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 1); |
| 11137 | stack = 1; |
| 11138 | } |
| 11139 | if (needs_control_head) |
| 11140 | { |
| 11141 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stack), TMP2, 0); |
| 11142 | stack++; |
| 11143 | } |
| 11144 | if (offset == 0) |
| 11145 | { |
| 11146 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stack), STR_PTR, 0); |
| 11147 | stack++; |
| 11148 | } |
| 11149 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stack), TMP1, 0); |
| 11150 | init_frame(common, cc, NULL, stacksize - 1, stacksize - framesize); |
| 11151 | stack -= 1 + (offset == 0); |
| 11152 | } |
| 11153 | |
| 11154 | if (offset != 0) |
| 11155 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), cbraprivptr, STR_PTR, 0); |
| 11156 | |
| 11157 | loop = LABEL(); |
| 11158 | while (*cc != OP_KETRPOS) |
| 11159 | { |
| 11160 | backtrack->top = NULL; |
| 11161 | backtrack->topbacktracks = NULL; |
| 11162 | cc += GET(cc, 1); |
| 11163 | |
| 11164 | compile_matchingpath(common, ccbegin, cc, backtrack); |
| 11165 | if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler))) |
| 11166 | return NULL; |
| 11167 | |
| 11168 | if (framesize < 0) |
| 11169 | { |
| 11170 | if (framesize == no_frame) |
| 11171 | OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); |
| 11172 | |
| 11173 | if (offset != 0) |
| 11174 | { |
| 11175 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), cbraprivptr); |
| 11176 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1), STR_PTR, 0); |
| 11177 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), cbraprivptr, STR_PTR, 0); |
| 11178 | if (common->capture_last_ptr != 0) |
| 11179 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr, SLJIT_IMM, offset >> 1); |
| 11180 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset), TMP1, 0); |
| 11181 | } |
| 11182 | else |
| 11183 | { |
| 11184 | if (opcode == OP_SBRAPOS) |
| 11185 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 11186 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0); |
| 11187 | } |
| 11188 | |
| 11189 | /* Even if the match is empty, we need to reset the control head. */ |
| 11190 | if (needs_control_head) |
| 11191 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, SLJIT_MEM1(STACK_TOP), STACK(stack)); |
| 11192 | |
| 11193 | if (opcode == OP_SBRAPOS || opcode == OP_SCBRAPOS) |
| 11194 | add_jump(compiler, &emptymatch, CMP(SLJIT_EQUAL, TMP1, 0, STR_PTR, 0)); |
| 11195 | |
| 11196 | if (!zero) |
| 11197 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize - 1), SLJIT_IMM, 0); |
| 11198 | } |
| 11199 | else |
| 11200 | { |
| 11201 | if (offset != 0) |
| 11202 | { |
| 11203 | OP2(SLJIT_SUB, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_IMM, stacksize * sizeof(sljit_sw)); |
| 11204 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), cbraprivptr); |
| 11205 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1), STR_PTR, 0); |
| 11206 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), cbraprivptr, STR_PTR, 0); |
| 11207 | if (common->capture_last_ptr != 0) |
| 11208 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr, SLJIT_IMM, offset >> 1); |
| 11209 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset), TMP1, 0); |
| 11210 | } |
| 11211 | else |
| 11212 | { |
| 11213 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); |
| 11214 | OP2(SLJIT_SUB, STACK_TOP, 0, TMP2, 0, SLJIT_IMM, stacksize * sizeof(sljit_sw)); |
| 11215 | if (opcode == OP_SBRAPOS) |
| 11216 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(TMP2), STACK(-framesize - 2)); |
| 11217 | OP1(SLJIT_MOV, SLJIT_MEM1(TMP2), STACK(-framesize - 2), STR_PTR, 0); |
| 11218 | } |
| 11219 | |
| 11220 | /* Even if the match is empty, we need to reset the control head. */ |
| 11221 | if (needs_control_head) |
| 11222 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, SLJIT_MEM1(STACK_TOP), STACK(stack)); |
| 11223 | |
| 11224 | if (opcode == OP_SBRAPOS || opcode == OP_SCBRAPOS) |
| 11225 | add_jump(compiler, &emptymatch, CMP(SLJIT_EQUAL, TMP1, 0, STR_PTR, 0)); |
| 11226 | |
| 11227 | if (!zero) |
| 11228 | { |
| 11229 | if (framesize < 0) |
| 11230 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize - 1), SLJIT_IMM, 0); |
| 11231 | else |
| 11232 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0); |
| 11233 | } |
| 11234 | } |
| 11235 | |
| 11236 | JUMPTO(SLJIT_JUMP, loop); |
| 11237 | flush_stubs(common); |
| 11238 | |
| 11239 | compile_backtrackingpath(common, backtrack->top); |
| 11240 | if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler))) |
| 11241 | return NULL; |
| 11242 | set_jumps(backtrack->topbacktracks, LABEL()); |
| 11243 | |
| 11244 | if (framesize < 0) |
| 11245 | { |
| 11246 | if (offset != 0) |
| 11247 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), cbraprivptr); |
| 11248 | else |
| 11249 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 11250 | } |
| 11251 | else |
| 11252 | { |
| 11253 | if (offset != 0) |
| 11254 | { |
| 11255 | /* Last alternative. */ |
| 11256 | if (*cc == OP_KETRPOS) |
| 11257 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); |
| 11258 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), cbraprivptr); |
| 11259 | } |
| 11260 | else |
| 11261 | { |
| 11262 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); |
| 11263 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(TMP2), STACK(-framesize - 2)); |
| 11264 | } |
| 11265 | } |
| 11266 | |
| 11267 | if (*cc == OP_KETRPOS) |
| 11268 | break; |
| 11269 | ccbegin = cc + 1 + LINK_SIZE; |
| 11270 | } |
| 11271 | |
| 11272 | /* We don't have to restore the control head in case of a failed match. */ |
| 11273 | |
| 11274 | backtrack->topbacktracks = NULL; |
| 11275 | if (!zero) |
| 11276 | { |
| 11277 | if (framesize < 0) |
| 11278 | add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_NOT_EQUAL, SLJIT_MEM1(STACK_TOP), STACK(stacksize - 1), SLJIT_IMM, 0)); |
| 11279 | else /* TMP2 is set to [private_data_ptr] above. */ |
| 11280 | add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_NOT_EQUAL, SLJIT_MEM1(TMP2), STACK(-stacksize), SLJIT_IMM, 0)); |
| 11281 | } |
| 11282 | |
| 11283 | /* None of them matched. */ |
| 11284 | set_jumps(emptymatch, LABEL()); |
| 11285 | count_match(common); |
| 11286 | return cc + 1 + LINK_SIZE; |
| 11287 | } |
| 11288 | |
| 11289 | static SLJIT_INLINE PCRE2_SPTR get_iterator_parameters(compiler_common *common, PCRE2_SPTR cc, PCRE2_UCHAR *opcode, PCRE2_UCHAR *type, sljit_u32 *max, sljit_u32 *exact, PCRE2_SPTR *end) |
| 11290 | { |
| 11291 | int class_len; |
| 11292 | |
| 11293 | *opcode = *cc; |
| 11294 | *exact = 0; |
| 11295 | |
| 11296 | if (*opcode >= OP_STAR && *opcode <= OP_POSUPTO) |
| 11297 | { |
| 11298 | cc++; |
| 11299 | *type = OP_CHAR; |
| 11300 | } |
| 11301 | else if (*opcode >= OP_STARI && *opcode <= OP_POSUPTOI) |
| 11302 | { |
| 11303 | cc++; |
| 11304 | *type = OP_CHARI; |
| 11305 | *opcode -= OP_STARI - OP_STAR; |
| 11306 | } |
| 11307 | else if (*opcode >= OP_NOTSTAR && *opcode <= OP_NOTPOSUPTO) |
| 11308 | { |
| 11309 | cc++; |
| 11310 | *type = OP_NOT; |
| 11311 | *opcode -= OP_NOTSTAR - OP_STAR; |
| 11312 | } |
| 11313 | else if (*opcode >= OP_NOTSTARI && *opcode <= OP_NOTPOSUPTOI) |
| 11314 | { |
| 11315 | cc++; |
| 11316 | *type = OP_NOTI; |
| 11317 | *opcode -= OP_NOTSTARI - OP_STAR; |
| 11318 | } |
| 11319 | else if (*opcode >= OP_TYPESTAR && *opcode <= OP_TYPEPOSUPTO) |
| 11320 | { |
| 11321 | cc++; |
| 11322 | *opcode -= OP_TYPESTAR - OP_STAR; |
| 11323 | *type = OP_END; |
| 11324 | } |
| 11325 | else |
| 11326 | { |
| 11327 | SLJIT_ASSERT(*opcode == OP_CLASS || *opcode == OP_NCLASS || *opcode == OP_XCLASS); |
| 11328 | *type = *opcode; |
| 11329 | cc++; |
| 11330 | class_len = (*type < OP_XCLASS) ? (int)(1 + (32 / sizeof(PCRE2_UCHAR))) : GET(cc, 0); |
| 11331 | *opcode = cc[class_len - 1]; |
| 11332 | |
| 11333 | if (*opcode >= OP_CRSTAR && *opcode <= OP_CRMINQUERY) |
| 11334 | { |
| 11335 | *opcode -= OP_CRSTAR - OP_STAR; |
| 11336 | *end = cc + class_len; |
| 11337 | |
| 11338 | if (*opcode == OP_PLUS || *opcode == OP_MINPLUS) |
| 11339 | { |
| 11340 | *exact = 1; |
| 11341 | *opcode -= OP_PLUS - OP_STAR; |
| 11342 | } |
| 11343 | } |
| 11344 | else if (*opcode >= OP_CRPOSSTAR && *opcode <= OP_CRPOSQUERY) |
| 11345 | { |
| 11346 | *opcode -= OP_CRPOSSTAR - OP_POSSTAR; |
| 11347 | *end = cc + class_len; |
| 11348 | |
| 11349 | if (*opcode == OP_POSPLUS) |
| 11350 | { |
| 11351 | *exact = 1; |
| 11352 | *opcode = OP_POSSTAR; |
| 11353 | } |
| 11354 | } |
| 11355 | else |
| 11356 | { |
| 11357 | SLJIT_ASSERT(*opcode == OP_CRRANGE || *opcode == OP_CRMINRANGE || *opcode == OP_CRPOSRANGE); |
| 11358 | *max = GET2(cc, (class_len + IMM2_SIZE)); |
| 11359 | *exact = GET2(cc, class_len); |
| 11360 | |
| 11361 | if (*max == 0) |
| 11362 | { |
| 11363 | if (*opcode == OP_CRPOSRANGE) |
| 11364 | *opcode = OP_POSSTAR; |
| 11365 | else |
| 11366 | *opcode -= OP_CRRANGE - OP_STAR; |
| 11367 | } |
| 11368 | else |
| 11369 | { |
| 11370 | *max -= *exact; |
| 11371 | if (*max == 0) |
| 11372 | *opcode = OP_EXACT; |
| 11373 | else if (*max == 1) |
| 11374 | { |
| 11375 | if (*opcode == OP_CRPOSRANGE) |
| 11376 | *opcode = OP_POSQUERY; |
| 11377 | else |
| 11378 | *opcode -= OP_CRRANGE - OP_QUERY; |
| 11379 | } |
| 11380 | else |
| 11381 | { |
| 11382 | if (*opcode == OP_CRPOSRANGE) |
| 11383 | *opcode = OP_POSUPTO; |
| 11384 | else |
| 11385 | *opcode -= OP_CRRANGE - OP_UPTO; |
| 11386 | } |
| 11387 | } |
| 11388 | *end = cc + class_len + 2 * IMM2_SIZE; |
| 11389 | } |
| 11390 | return cc; |
| 11391 | } |
| 11392 | |
| 11393 | switch(*opcode) |
| 11394 | { |
| 11395 | case OP_EXACT: |
| 11396 | *exact = GET2(cc, 0); |
| 11397 | cc += IMM2_SIZE; |
| 11398 | break; |
| 11399 | |
| 11400 | case OP_PLUS: |
| 11401 | case OP_MINPLUS: |
| 11402 | *exact = 1; |
| 11403 | *opcode -= OP_PLUS - OP_STAR; |
| 11404 | break; |
| 11405 | |
| 11406 | case OP_POSPLUS: |
| 11407 | *exact = 1; |
| 11408 | *opcode = OP_POSSTAR; |
| 11409 | break; |
| 11410 | |
| 11411 | case OP_UPTO: |
| 11412 | case OP_MINUPTO: |
| 11413 | case OP_POSUPTO: |
| 11414 | *max = GET2(cc, 0); |
| 11415 | cc += IMM2_SIZE; |
| 11416 | break; |
| 11417 | } |
| 11418 | |
| 11419 | if (*type == OP_END) |
| 11420 | { |
| 11421 | *type = *cc; |
| 11422 | *end = next_opcode(common, cc); |
| 11423 | cc++; |
| 11424 | return cc; |
| 11425 | } |
| 11426 | |
| 11427 | *end = cc + 1; |
| 11428 | #ifdef SUPPORT_UNICODE |
| 11429 | if (common->utf && HAS_EXTRALEN(*cc)) *end += GET_EXTRALEN(*cc); |
| 11430 | #endif |
| 11431 | return cc; |
| 11432 | } |
| 11433 | |
| 11434 | static PCRE2_SPTR compile_iterator_matchingpath(compiler_common *common, PCRE2_SPTR cc, backtrack_common *parent) |
| 11435 | { |
| 11436 | DEFINE_COMPILER; |
| 11437 | backtrack_common *backtrack; |
| 11438 | PCRE2_UCHAR opcode; |
| 11439 | PCRE2_UCHAR type; |
| 11440 | sljit_u32 max = 0, exact; |
| 11441 | sljit_s32 early_fail_ptr = PRIVATE_DATA(cc + 1); |
| 11442 | sljit_s32 early_fail_type; |
| 11443 | BOOL charpos_enabled; |
| 11444 | PCRE2_UCHAR charpos_char; |
| 11445 | unsigned int charpos_othercasebit; |
| 11446 | PCRE2_SPTR end; |
| 11447 | jump_list *no_match = NULL; |
| 11448 | jump_list *no_char1_match = NULL; |
| 11449 | struct sljit_jump *jump = NULL; |
| 11450 | struct sljit_label *label; |
| 11451 | int private_data_ptr = PRIVATE_DATA(cc); |
| 11452 | int base = (private_data_ptr == 0) ? SLJIT_MEM1(STACK_TOP) : SLJIT_MEM1(SLJIT_SP); |
| 11453 | int offset0 = (private_data_ptr == 0) ? STACK(0) : private_data_ptr; |
| 11454 | int offset1 = (private_data_ptr == 0) ? STACK(1) : private_data_ptr + (int)sizeof(sljit_sw); |
| 11455 | int tmp_base, tmp_offset; |
| 11456 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 11457 | BOOL use_tmp; |
| 11458 | #endif |
| 11459 | |
| 11460 | PUSH_BACKTRACK(sizeof(char_iterator_backtrack), cc, NULL); |
| 11461 | |
| 11462 | early_fail_type = (early_fail_ptr & 0x7); |
| 11463 | early_fail_ptr >>= 3; |
| 11464 | |
| 11465 | /* During recursion, these optimizations are disabled. */ |
| 11466 | if (common->early_fail_start_ptr == 0 && common->fast_forward_bc_ptr == NULL) |
| 11467 | { |
| 11468 | early_fail_ptr = 0; |
| 11469 | early_fail_type = type_skip; |
| 11470 | } |
| 11471 | |
| 11472 | SLJIT_ASSERT(common->fast_forward_bc_ptr != NULL || early_fail_ptr == 0 |
| 11473 | || (early_fail_ptr >= common->early_fail_start_ptr && early_fail_ptr <= common->early_fail_end_ptr)); |
| 11474 | |
| 11475 | if (early_fail_type == type_fail) |
| 11476 | add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_LESS_EQUAL, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), early_fail_ptr)); |
| 11477 | |
| 11478 | cc = get_iterator_parameters(common, cc, &opcode, &type, &max, &exact, &end); |
| 11479 | |
| 11480 | if (type != OP_EXTUNI) |
| 11481 | { |
| 11482 | tmp_base = TMP3; |
| 11483 | tmp_offset = 0; |
| 11484 | } |
| 11485 | else |
| 11486 | { |
| 11487 | tmp_base = SLJIT_MEM1(SLJIT_SP); |
| 11488 | tmp_offset = POSSESSIVE0; |
| 11489 | } |
| 11490 | |
| 11491 | /* Handle fixed part first. */ |
| 11492 | if (exact > 1) |
| 11493 | { |
| 11494 | SLJIT_ASSERT(early_fail_ptr == 0); |
| 11495 | |
| 11496 | if (common->mode == PCRE2_JIT_COMPLETE |
| 11497 | #ifdef SUPPORT_UNICODE |
| 11498 | && !common->utf |
| 11499 | #endif |
| 11500 | && type != OP_ANYNL && type != OP_EXTUNI) |
| 11501 | { |
| 11502 | OP2(SLJIT_ADD, TMP1, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(exact)); |
| 11503 | add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_GREATER, TMP1, 0, STR_END, 0)); |
| 11504 | OP1(SLJIT_MOV, tmp_base, tmp_offset, SLJIT_IMM, exact); |
| 11505 | label = LABEL(); |
| 11506 | compile_char1_matchingpath(common, type, cc, &backtrack->topbacktracks, FALSE); |
| 11507 | OP2(SLJIT_SUB | SLJIT_SET_Z, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1); |
| 11508 | JUMPTO(SLJIT_NOT_ZERO, label); |
| 11509 | } |
| 11510 | else |
| 11511 | { |
| 11512 | OP1(SLJIT_MOV, tmp_base, tmp_offset, SLJIT_IMM, exact); |
| 11513 | label = LABEL(); |
| 11514 | compile_char1_matchingpath(common, type, cc, &backtrack->topbacktracks, TRUE); |
| 11515 | OP2(SLJIT_SUB | SLJIT_SET_Z, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1); |
| 11516 | JUMPTO(SLJIT_NOT_ZERO, label); |
| 11517 | } |
| 11518 | } |
| 11519 | else if (exact == 1) |
| 11520 | { |
| 11521 | compile_char1_matchingpath(common, type, cc, &backtrack->topbacktracks, TRUE); |
| 11522 | |
| 11523 | if (early_fail_type == type_fail_range) |
| 11524 | { |
| 11525 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), early_fail_ptr); |
| 11526 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), early_fail_ptr + (int)sizeof(sljit_sw)); |
| 11527 | OP2(SLJIT_SUB, TMP1, 0, TMP1, 0, TMP2, 0); |
| 11528 | OP2(SLJIT_SUB, TMP2, 0, STR_PTR, 0, TMP2, 0); |
| 11529 | add_jump(compiler, &backtrack->topbacktracks, CMP(SLJIT_LESS_EQUAL, TMP2, 0, TMP1, 0)); |
| 11530 | |
| 11531 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), early_fail_ptr + (int)sizeof(sljit_sw), STR_PTR, 0); |
| 11532 | } |
| 11533 | } |
| 11534 | |
| 11535 | switch(opcode) |
| 11536 | { |
| 11537 | case OP_STAR: |
| 11538 | case OP_UPTO: |
| 11539 | SLJIT_ASSERT(early_fail_ptr == 0 || opcode == OP_STAR); |
| 11540 | |
| 11541 | if (type == OP_ANYNL || type == OP_EXTUNI) |
| 11542 | { |
| 11543 | SLJIT_ASSERT(private_data_ptr == 0); |
| 11544 | SLJIT_ASSERT(early_fail_ptr == 0); |
| 11545 | |
| 11546 | allocate_stack(common, 2); |
| 11547 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0); |
| 11548 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, 0); |
| 11549 | |
| 11550 | if (opcode == OP_UPTO) |
| 11551 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), POSSESSIVE0, SLJIT_IMM, max); |
| 11552 | |
| 11553 | label = LABEL(); |
| 11554 | compile_char1_matchingpath(common, type, cc, &BACKTRACK_AS(char_iterator_backtrack)->u.backtracks, TRUE); |
| 11555 | if (opcode == OP_UPTO) |
| 11556 | { |
| 11557 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), POSSESSIVE0); |
| 11558 | OP2(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, TMP1, 0, SLJIT_IMM, 1); |
| 11559 | jump = JUMP(SLJIT_ZERO); |
| 11560 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), POSSESSIVE0, TMP1, 0); |
| 11561 | } |
| 11562 | |
| 11563 | /* We cannot use TMP3 because of allocate_stack. */ |
| 11564 | allocate_stack(common, 1); |
| 11565 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0); |
| 11566 | JUMPTO(SLJIT_JUMP, label); |
| 11567 | if (jump != NULL) |
| 11568 | JUMPHERE(jump); |
| 11569 | BACKTRACK_AS(char_iterator_backtrack)->matchingpath = LABEL(); |
| 11570 | break; |
| 11571 | } |
| 11572 | #ifdef SUPPORT_UNICODE |
| 11573 | else if (type == OP_ALLANY && !common->invalid_utf) |
| 11574 | #else |
| 11575 | else if (type == OP_ALLANY) |
| 11576 | #endif |
| 11577 | { |
| 11578 | if (opcode == OP_STAR) |
| 11579 | { |
| 11580 | if (private_data_ptr == 0) |
| 11581 | allocate_stack(common, 2); |
| 11582 | |
| 11583 | OP1(SLJIT_MOV, base, offset0, STR_END, 0); |
| 11584 | OP1(SLJIT_MOV, base, offset1, STR_PTR, 0); |
| 11585 | |
| 11586 | OP1(SLJIT_MOV, STR_PTR, 0, STR_END, 0); |
| 11587 | process_partial_match(common); |
| 11588 | |
| 11589 | if (early_fail_ptr != 0) |
| 11590 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), early_fail_ptr, STR_END, 0); |
| 11591 | BACKTRACK_AS(char_iterator_backtrack)->matchingpath = LABEL(); |
| 11592 | break; |
| 11593 | } |
| 11594 | #ifdef SUPPORT_UNICODE |
| 11595 | else if (!common->utf) |
| 11596 | #else |
| 11597 | else |
| 11598 | #endif |
| 11599 | { |
| 11600 | if (private_data_ptr == 0) |
| 11601 | allocate_stack(common, 2); |
| 11602 | |
| 11603 | OP1(SLJIT_MOV, base, offset1, STR_PTR, 0); |
| 11604 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(max)); |
| 11605 | |
| 11606 | if (common->mode == PCRE2_JIT_COMPLETE) |
| 11607 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 11608 | OP2U(SLJIT_SUB | SLJIT_SET_GREATER, STR_PTR, 0, STR_END, 0); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 11609 | CMOV(SLJIT_GREATER, STR_PTR, STR_END, 0); |
| 11610 | } |
| 11611 | else |
| 11612 | { |
| 11613 | jump = CMP(SLJIT_LESS_EQUAL, STR_PTR, 0, STR_END, 0); |
| 11614 | process_partial_match(common); |
| 11615 | JUMPHERE(jump); |
| 11616 | } |
| 11617 | |
| 11618 | OP1(SLJIT_MOV, base, offset0, STR_PTR, 0); |
| 11619 | |
| 11620 | if (early_fail_ptr != 0) |
| 11621 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), early_fail_ptr, STR_PTR, 0); |
| 11622 | BACKTRACK_AS(char_iterator_backtrack)->matchingpath = LABEL(); |
| 11623 | break; |
| 11624 | } |
| 11625 | } |
| 11626 | |
| 11627 | charpos_enabled = FALSE; |
| 11628 | charpos_char = 0; |
| 11629 | charpos_othercasebit = 0; |
| 11630 | |
| 11631 | if ((type != OP_CHAR && type != OP_CHARI) && (*end == OP_CHAR || *end == OP_CHARI)) |
| 11632 | { |
| 11633 | #ifdef SUPPORT_UNICODE |
| 11634 | charpos_enabled = !common->utf || !HAS_EXTRALEN(end[1]); |
| 11635 | #else |
| 11636 | charpos_enabled = TRUE; |
| 11637 | #endif |
| 11638 | if (charpos_enabled && *end == OP_CHARI && char_has_othercase(common, end + 1)) |
| 11639 | { |
| 11640 | charpos_othercasebit = char_get_othercase_bit(common, end + 1); |
| 11641 | if (charpos_othercasebit == 0) |
| 11642 | charpos_enabled = FALSE; |
| 11643 | } |
| 11644 | |
| 11645 | if (charpos_enabled) |
| 11646 | { |
| 11647 | charpos_char = end[1]; |
| 11648 | /* Consume the OP_CHAR opcode. */ |
| 11649 | end += 2; |
| 11650 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 11651 | SLJIT_ASSERT((charpos_othercasebit >> 8) == 0); |
| 11652 | #elif PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32 |
| 11653 | SLJIT_ASSERT((charpos_othercasebit >> 9) == 0); |
| 11654 | if ((charpos_othercasebit & 0x100) != 0) |
| 11655 | charpos_othercasebit = (charpos_othercasebit & 0xff) << 8; |
| 11656 | #endif |
| 11657 | if (charpos_othercasebit != 0) |
| 11658 | charpos_char |= charpos_othercasebit; |
| 11659 | |
| 11660 | BACKTRACK_AS(char_iterator_backtrack)->u.charpos.enabled = TRUE; |
| 11661 | BACKTRACK_AS(char_iterator_backtrack)->u.charpos.chr = charpos_char; |
| 11662 | BACKTRACK_AS(char_iterator_backtrack)->u.charpos.othercasebit = charpos_othercasebit; |
| 11663 | } |
| 11664 | } |
| 11665 | |
| 11666 | if (charpos_enabled) |
| 11667 | { |
| 11668 | if (opcode == OP_UPTO) |
| 11669 | OP1(SLJIT_MOV, tmp_base, tmp_offset, SLJIT_IMM, max + 1); |
| 11670 | |
| 11671 | /* Search the first instance of charpos_char. */ |
| 11672 | jump = JUMP(SLJIT_JUMP); |
| 11673 | label = LABEL(); |
| 11674 | if (opcode == OP_UPTO) |
| 11675 | { |
| 11676 | OP2(SLJIT_SUB | SLJIT_SET_Z, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1); |
| 11677 | add_jump(compiler, &backtrack->topbacktracks, JUMP(SLJIT_ZERO)); |
| 11678 | } |
| 11679 | compile_char1_matchingpath(common, type, cc, &backtrack->topbacktracks, FALSE); |
| 11680 | if (early_fail_ptr != 0) |
| 11681 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), early_fail_ptr, STR_PTR, 0); |
| 11682 | JUMPHERE(jump); |
| 11683 | |
| 11684 | detect_partial_match(common, &backtrack->topbacktracks); |
| 11685 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); |
| 11686 | if (charpos_othercasebit != 0) |
| 11687 | OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, charpos_othercasebit); |
| 11688 | CMPTO(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, charpos_char, label); |
| 11689 | |
| 11690 | if (private_data_ptr == 0) |
| 11691 | allocate_stack(common, 2); |
| 11692 | OP1(SLJIT_MOV, base, offset0, STR_PTR, 0); |
| 11693 | OP1(SLJIT_MOV, base, offset1, STR_PTR, 0); |
| 11694 | |
| 11695 | if (opcode == OP_UPTO) |
| 11696 | { |
| 11697 | OP2(SLJIT_SUB | SLJIT_SET_Z, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1); |
| 11698 | add_jump(compiler, &no_match, JUMP(SLJIT_ZERO)); |
| 11699 | } |
| 11700 | |
| 11701 | /* Search the last instance of charpos_char. */ |
| 11702 | label = LABEL(); |
| 11703 | compile_char1_matchingpath(common, type, cc, &no_match, FALSE); |
| 11704 | if (early_fail_ptr != 0) |
| 11705 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), early_fail_ptr, STR_PTR, 0); |
| 11706 | detect_partial_match(common, &no_match); |
| 11707 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(0)); |
| 11708 | if (charpos_othercasebit != 0) |
| 11709 | OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, charpos_othercasebit); |
| 11710 | |
| 11711 | if (opcode == OP_STAR) |
| 11712 | { |
| 11713 | CMPTO(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, charpos_char, label); |
| 11714 | OP1(SLJIT_MOV, base, offset0, STR_PTR, 0); |
| 11715 | JUMPTO(SLJIT_JUMP, label); |
| 11716 | } |
| 11717 | else |
| 11718 | { |
| 11719 | jump = CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, charpos_char); |
| 11720 | OP1(SLJIT_MOV, base, offset0, STR_PTR, 0); |
| 11721 | JUMPHERE(jump); |
| 11722 | OP2(SLJIT_SUB | SLJIT_SET_Z, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1); |
| 11723 | JUMPTO(SLJIT_NOT_ZERO, label); |
| 11724 | } |
| 11725 | |
| 11726 | set_jumps(no_match, LABEL()); |
| 11727 | OP2(SLJIT_ADD, STR_PTR, 0, base, offset0, SLJIT_IMM, IN_UCHARS(1)); |
| 11728 | OP1(SLJIT_MOV, base, offset0, STR_PTR, 0); |
| 11729 | } |
| 11730 | else |
| 11731 | { |
| 11732 | if (private_data_ptr == 0) |
| 11733 | allocate_stack(common, 2); |
| 11734 | |
| 11735 | OP1(SLJIT_MOV, base, offset1, STR_PTR, 0); |
| 11736 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 11737 | use_tmp = (!HAS_VIRTUAL_REGISTERS && opcode == OP_STAR); |
| 11738 | SLJIT_ASSERT(!use_tmp || tmp_base == TMP3); |
| 11739 | |
| 11740 | if (common->utf) |
| 11741 | OP1(SLJIT_MOV, use_tmp ? TMP3 : base, use_tmp ? 0 : offset0, STR_PTR, 0); |
| 11742 | #endif |
| 11743 | if (opcode == OP_UPTO) |
| 11744 | OP1(SLJIT_MOV, tmp_base, tmp_offset, SLJIT_IMM, max); |
| 11745 | |
| 11746 | detect_partial_match(common, &no_match); |
| 11747 | label = LABEL(); |
| 11748 | compile_char1_matchingpath(common, type, cc, &no_char1_match, FALSE); |
| 11749 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 11750 | if (common->utf) |
| 11751 | OP1(SLJIT_MOV, use_tmp ? TMP3 : base, use_tmp ? 0 : offset0, STR_PTR, 0); |
| 11752 | #endif |
| 11753 | |
| 11754 | if (opcode == OP_UPTO) |
| 11755 | { |
| 11756 | OP2(SLJIT_SUB | SLJIT_SET_Z, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1); |
| 11757 | add_jump(compiler, &no_match, JUMP(SLJIT_ZERO)); |
| 11758 | } |
| 11759 | |
| 11760 | detect_partial_match_to(common, label); |
| 11761 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 11762 | |
| 11763 | set_jumps(no_char1_match, LABEL()); |
| 11764 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 11765 | if (common->utf) |
| 11766 | { |
| 11767 | set_jumps(no_match, LABEL()); |
| 11768 | if (use_tmp) |
| 11769 | { |
| 11770 | OP1(SLJIT_MOV, STR_PTR, 0, TMP3, 0); |
| 11771 | OP1(SLJIT_MOV, base, offset0, TMP3, 0); |
| 11772 | } |
| 11773 | else |
| 11774 | OP1(SLJIT_MOV, STR_PTR, 0, base, offset0); |
| 11775 | } |
| 11776 | else |
| 11777 | #endif |
| 11778 | { |
| 11779 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 11780 | set_jumps(no_match, LABEL()); |
| 11781 | OP1(SLJIT_MOV, base, offset0, STR_PTR, 0); |
| 11782 | } |
| 11783 | |
| 11784 | if (early_fail_ptr != 0) |
| 11785 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), early_fail_ptr, STR_PTR, 0); |
| 11786 | } |
| 11787 | |
| 11788 | BACKTRACK_AS(char_iterator_backtrack)->matchingpath = LABEL(); |
| 11789 | break; |
| 11790 | |
| 11791 | case OP_MINSTAR: |
| 11792 | if (private_data_ptr == 0) |
| 11793 | allocate_stack(common, 1); |
| 11794 | OP1(SLJIT_MOV, base, offset0, STR_PTR, 0); |
| 11795 | BACKTRACK_AS(char_iterator_backtrack)->matchingpath = LABEL(); |
| 11796 | if (early_fail_ptr != 0) |
| 11797 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), early_fail_ptr, STR_PTR, 0); |
| 11798 | break; |
| 11799 | |
| 11800 | case OP_MINUPTO: |
| 11801 | SLJIT_ASSERT(early_fail_ptr == 0); |
| 11802 | if (private_data_ptr == 0) |
| 11803 | allocate_stack(common, 2); |
| 11804 | OP1(SLJIT_MOV, base, offset0, STR_PTR, 0); |
| 11805 | OP1(SLJIT_MOV, base, offset1, SLJIT_IMM, max + 1); |
| 11806 | BACKTRACK_AS(char_iterator_backtrack)->matchingpath = LABEL(); |
| 11807 | break; |
| 11808 | |
| 11809 | case OP_QUERY: |
| 11810 | case OP_MINQUERY: |
| 11811 | SLJIT_ASSERT(early_fail_ptr == 0); |
| 11812 | if (private_data_ptr == 0) |
| 11813 | allocate_stack(common, 1); |
| 11814 | OP1(SLJIT_MOV, base, offset0, STR_PTR, 0); |
| 11815 | if (opcode == OP_QUERY) |
| 11816 | compile_char1_matchingpath(common, type, cc, &BACKTRACK_AS(char_iterator_backtrack)->u.backtracks, TRUE); |
| 11817 | BACKTRACK_AS(char_iterator_backtrack)->matchingpath = LABEL(); |
| 11818 | break; |
| 11819 | |
| 11820 | case OP_EXACT: |
| 11821 | break; |
| 11822 | |
| 11823 | case OP_POSSTAR: |
| 11824 | #if defined SUPPORT_UNICODE |
| 11825 | if (type == OP_ALLANY && !common->invalid_utf) |
| 11826 | #else |
| 11827 | if (type == OP_ALLANY) |
| 11828 | #endif |
| 11829 | { |
| 11830 | OP1(SLJIT_MOV, STR_PTR, 0, STR_END, 0); |
| 11831 | process_partial_match(common); |
| 11832 | if (early_fail_ptr != 0) |
| 11833 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), early_fail_ptr, STR_END, 0); |
| 11834 | break; |
| 11835 | } |
| 11836 | |
| 11837 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 11838 | if (common->utf) |
| 11839 | { |
| 11840 | OP1(SLJIT_MOV, tmp_base, tmp_offset, STR_PTR, 0); |
| 11841 | detect_partial_match(common, &no_match); |
| 11842 | label = LABEL(); |
| 11843 | compile_char1_matchingpath(common, type, cc, &no_match, FALSE); |
| 11844 | OP1(SLJIT_MOV, tmp_base, tmp_offset, STR_PTR, 0); |
| 11845 | detect_partial_match_to(common, label); |
| 11846 | |
| 11847 | set_jumps(no_match, LABEL()); |
| 11848 | OP1(SLJIT_MOV, STR_PTR, 0, tmp_base, tmp_offset); |
| 11849 | if (early_fail_ptr != 0) |
| 11850 | { |
| 11851 | if (!HAS_VIRTUAL_REGISTERS && tmp_base == TMP3) |
| 11852 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), early_fail_ptr, TMP3, 0); |
| 11853 | else |
| 11854 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), early_fail_ptr, STR_PTR, 0); |
| 11855 | } |
| 11856 | break; |
| 11857 | } |
| 11858 | #endif |
| 11859 | |
| 11860 | detect_partial_match(common, &no_match); |
| 11861 | label = LABEL(); |
| 11862 | compile_char1_matchingpath(common, type, cc, &no_char1_match, FALSE); |
| 11863 | detect_partial_match_to(common, label); |
| 11864 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 11865 | |
| 11866 | set_jumps(no_char1_match, LABEL()); |
| 11867 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 11868 | set_jumps(no_match, LABEL()); |
| 11869 | if (early_fail_ptr != 0) |
| 11870 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), early_fail_ptr, STR_PTR, 0); |
| 11871 | break; |
| 11872 | |
| 11873 | case OP_POSUPTO: |
| 11874 | SLJIT_ASSERT(early_fail_ptr == 0); |
| 11875 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 11876 | if (common->utf) |
| 11877 | { |
| 11878 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), POSSESSIVE1, STR_PTR, 0); |
| 11879 | OP1(SLJIT_MOV, tmp_base, tmp_offset, SLJIT_IMM, max); |
| 11880 | |
| 11881 | detect_partial_match(common, &no_match); |
| 11882 | label = LABEL(); |
| 11883 | compile_char1_matchingpath(common, type, cc, &no_match, FALSE); |
| 11884 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), POSSESSIVE1, STR_PTR, 0); |
| 11885 | OP2(SLJIT_SUB | SLJIT_SET_Z, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1); |
| 11886 | add_jump(compiler, &no_match, JUMP(SLJIT_ZERO)); |
| 11887 | detect_partial_match_to(common, label); |
| 11888 | |
| 11889 | set_jumps(no_match, LABEL()); |
| 11890 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), POSSESSIVE1); |
| 11891 | break; |
| 11892 | } |
| 11893 | #endif |
| 11894 | |
| 11895 | if (type == OP_ALLANY) |
| 11896 | { |
| 11897 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(max)); |
| 11898 | |
| 11899 | if (common->mode == PCRE2_JIT_COMPLETE) |
| 11900 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 11901 | OP2U(SLJIT_SUB | SLJIT_SET_GREATER, STR_PTR, 0, STR_END, 0); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 11902 | CMOV(SLJIT_GREATER, STR_PTR, STR_END, 0); |
| 11903 | } |
| 11904 | else |
| 11905 | { |
| 11906 | jump = CMP(SLJIT_LESS_EQUAL, STR_PTR, 0, STR_END, 0); |
| 11907 | process_partial_match(common); |
| 11908 | JUMPHERE(jump); |
| 11909 | } |
| 11910 | break; |
| 11911 | } |
| 11912 | |
| 11913 | OP1(SLJIT_MOV, tmp_base, tmp_offset, SLJIT_IMM, max); |
| 11914 | |
| 11915 | detect_partial_match(common, &no_match); |
| 11916 | label = LABEL(); |
| 11917 | compile_char1_matchingpath(common, type, cc, &no_char1_match, FALSE); |
| 11918 | OP2(SLJIT_SUB | SLJIT_SET_Z, tmp_base, tmp_offset, tmp_base, tmp_offset, SLJIT_IMM, 1); |
| 11919 | add_jump(compiler, &no_match, JUMP(SLJIT_ZERO)); |
| 11920 | detect_partial_match_to(common, label); |
| 11921 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 11922 | |
| 11923 | set_jumps(no_char1_match, LABEL()); |
| 11924 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 11925 | set_jumps(no_match, LABEL()); |
| 11926 | break; |
| 11927 | |
| 11928 | case OP_POSQUERY: |
| 11929 | SLJIT_ASSERT(early_fail_ptr == 0); |
| 11930 | OP1(SLJIT_MOV, tmp_base, tmp_offset, STR_PTR, 0); |
| 11931 | compile_char1_matchingpath(common, type, cc, &no_match, TRUE); |
| 11932 | OP1(SLJIT_MOV, tmp_base, tmp_offset, STR_PTR, 0); |
| 11933 | set_jumps(no_match, LABEL()); |
| 11934 | OP1(SLJIT_MOV, STR_PTR, 0, tmp_base, tmp_offset); |
| 11935 | break; |
| 11936 | |
| 11937 | default: |
| 11938 | SLJIT_UNREACHABLE(); |
| 11939 | break; |
| 11940 | } |
| 11941 | |
| 11942 | count_match(common); |
| 11943 | return end; |
| 11944 | } |
| 11945 | |
| 11946 | static SLJIT_INLINE PCRE2_SPTR compile_fail_accept_matchingpath(compiler_common *common, PCRE2_SPTR cc, backtrack_common *parent) |
| 11947 | { |
| 11948 | DEFINE_COMPILER; |
| 11949 | backtrack_common *backtrack; |
| 11950 | |
| 11951 | PUSH_BACKTRACK(sizeof(backtrack_common), cc, NULL); |
| 11952 | |
| 11953 | if (*cc == OP_FAIL) |
| 11954 | { |
| 11955 | add_jump(compiler, &backtrack->topbacktracks, JUMP(SLJIT_JUMP)); |
| 11956 | return cc + 1; |
| 11957 | } |
| 11958 | |
| 11959 | if (*cc == OP_ACCEPT && common->currententry == NULL && (common->re->overall_options & PCRE2_ENDANCHORED) != 0) |
| 11960 | add_jump(compiler, &common->reset_match, CMP(SLJIT_NOT_EQUAL, STR_PTR, 0, STR_END, 0)); |
| 11961 | |
| 11962 | if (*cc == OP_ASSERT_ACCEPT || common->currententry != NULL || !common->might_be_empty) |
| 11963 | { |
| 11964 | /* No need to check notempty conditions. */ |
| 11965 | if (common->accept_label == NULL) |
| 11966 | add_jump(compiler, &common->accept, JUMP(SLJIT_JUMP)); |
| 11967 | else |
| 11968 | JUMPTO(SLJIT_JUMP, common->accept_label); |
| 11969 | return cc + 1; |
| 11970 | } |
| 11971 | |
| 11972 | if (common->accept_label == NULL) |
| 11973 | add_jump(compiler, &common->accept, CMP(SLJIT_NOT_EQUAL, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(0))); |
| 11974 | else |
| 11975 | CMPTO(SLJIT_NOT_EQUAL, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(0), common->accept_label); |
| 11976 | |
| 11977 | if (HAS_VIRTUAL_REGISTERS) |
| 11978 | { |
| 11979 | OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0); |
| 11980 | OP1(SLJIT_MOV_U32, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, options)); |
| 11981 | } |
| 11982 | else |
| 11983 | OP1(SLJIT_MOV_U32, TMP2, 0, SLJIT_MEM1(ARGUMENTS), SLJIT_OFFSETOF(jit_arguments, options)); |
| 11984 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 11985 | OP2U(SLJIT_AND | SLJIT_SET_Z, TMP2, 0, SLJIT_IMM, PCRE2_NOTEMPTY); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 11986 | add_jump(compiler, &backtrack->topbacktracks, JUMP(SLJIT_NOT_ZERO)); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 11987 | OP2U(SLJIT_AND | SLJIT_SET_Z, TMP2, 0, SLJIT_IMM, PCRE2_NOTEMPTY_ATSTART); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 11988 | if (common->accept_label == NULL) |
| 11989 | add_jump(compiler, &common->accept, JUMP(SLJIT_ZERO)); |
| 11990 | else |
| 11991 | JUMPTO(SLJIT_ZERO, common->accept_label); |
| 11992 | |
| 11993 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(HAS_VIRTUAL_REGISTERS ? TMP1 : ARGUMENTS), SLJIT_OFFSETOF(jit_arguments, str)); |
| 11994 | if (common->accept_label == NULL) |
| 11995 | add_jump(compiler, &common->accept, CMP(SLJIT_NOT_EQUAL, TMP2, 0, STR_PTR, 0)); |
| 11996 | else |
| 11997 | CMPTO(SLJIT_NOT_EQUAL, TMP2, 0, STR_PTR, 0, common->accept_label); |
| 11998 | add_jump(compiler, &backtrack->topbacktracks, JUMP(SLJIT_JUMP)); |
| 11999 | return cc + 1; |
| 12000 | } |
| 12001 | |
| 12002 | static SLJIT_INLINE PCRE2_SPTR compile_close_matchingpath(compiler_common *common, PCRE2_SPTR cc) |
| 12003 | { |
| 12004 | DEFINE_COMPILER; |
| 12005 | int offset = GET2(cc, 1); |
| 12006 | BOOL optimized_cbracket = common->optimized_cbracket[offset] != 0; |
| 12007 | |
| 12008 | /* Data will be discarded anyway... */ |
| 12009 | if (common->currententry != NULL) |
| 12010 | return cc + 1 + IMM2_SIZE; |
| 12011 | |
| 12012 | if (!optimized_cbracket) |
| 12013 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR_PRIV(offset)); |
| 12014 | offset <<= 1; |
| 12015 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1), STR_PTR, 0); |
| 12016 | if (!optimized_cbracket) |
| 12017 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset), TMP1, 0); |
| 12018 | return cc + 1 + IMM2_SIZE; |
| 12019 | } |
| 12020 | |
| 12021 | static SLJIT_INLINE PCRE2_SPTR compile_control_verb_matchingpath(compiler_common *common, PCRE2_SPTR cc, backtrack_common *parent) |
| 12022 | { |
| 12023 | DEFINE_COMPILER; |
| 12024 | backtrack_common *backtrack; |
| 12025 | PCRE2_UCHAR opcode = *cc; |
| 12026 | PCRE2_SPTR ccend = cc + 1; |
| 12027 | |
| 12028 | if (opcode == OP_COMMIT_ARG || opcode == OP_PRUNE_ARG || |
| 12029 | opcode == OP_SKIP_ARG || opcode == OP_THEN_ARG) |
| 12030 | ccend += 2 + cc[1]; |
| 12031 | |
| 12032 | PUSH_BACKTRACK(sizeof(backtrack_common), cc, NULL); |
| 12033 | |
| 12034 | if (opcode == OP_SKIP) |
| 12035 | { |
| 12036 | allocate_stack(common, 1); |
| 12037 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0); |
| 12038 | return ccend; |
| 12039 | } |
| 12040 | |
| 12041 | if (opcode == OP_COMMIT_ARG || opcode == OP_PRUNE_ARG || opcode == OP_THEN_ARG) |
| 12042 | { |
| 12043 | if (HAS_VIRTUAL_REGISTERS) |
| 12044 | OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0); |
| 12045 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, (sljit_sw)(cc + 2)); |
| 12046 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->mark_ptr, TMP2, 0); |
| 12047 | OP1(SLJIT_MOV, SLJIT_MEM1(HAS_VIRTUAL_REGISTERS ? TMP1 : ARGUMENTS), SLJIT_OFFSETOF(jit_arguments, mark_ptr), TMP2, 0); |
| 12048 | } |
| 12049 | |
| 12050 | return ccend; |
| 12051 | } |
| 12052 | |
| 12053 | static PCRE2_UCHAR then_trap_opcode[1] = { OP_THEN_TRAP }; |
| 12054 | |
| 12055 | static SLJIT_INLINE void compile_then_trap_matchingpath(compiler_common *common, PCRE2_SPTR cc, PCRE2_SPTR ccend, backtrack_common *parent) |
| 12056 | { |
| 12057 | DEFINE_COMPILER; |
| 12058 | backtrack_common *backtrack; |
| 12059 | BOOL needs_control_head; |
| 12060 | int size; |
| 12061 | |
| 12062 | PUSH_BACKTRACK_NOVALUE(sizeof(then_trap_backtrack), cc); |
| 12063 | common->then_trap = BACKTRACK_AS(then_trap_backtrack); |
| 12064 | BACKTRACK_AS(then_trap_backtrack)->common.cc = then_trap_opcode; |
| 12065 | BACKTRACK_AS(then_trap_backtrack)->start = (sljit_sw)(cc - common->start); |
| 12066 | BACKTRACK_AS(then_trap_backtrack)->framesize = get_framesize(common, cc, ccend, FALSE, &needs_control_head); |
| 12067 | |
| 12068 | size = BACKTRACK_AS(then_trap_backtrack)->framesize; |
| 12069 | size = 3 + (size < 0 ? 0 : size); |
| 12070 | |
| 12071 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr); |
| 12072 | allocate_stack(common, size); |
| 12073 | if (size > 3) |
| 12074 | OP2(SLJIT_ADD, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, STACK_TOP, 0, SLJIT_IMM, (size - 3) * sizeof(sljit_sw)); |
| 12075 | else |
| 12076 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, STACK_TOP, 0); |
| 12077 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(size - 1), SLJIT_IMM, BACKTRACK_AS(then_trap_backtrack)->start); |
| 12078 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(size - 2), SLJIT_IMM, type_then_trap); |
| 12079 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(size - 3), TMP2, 0); |
| 12080 | |
| 12081 | size = BACKTRACK_AS(then_trap_backtrack)->framesize; |
| 12082 | if (size >= 0) |
| 12083 | init_frame(common, cc, ccend, size - 1, 0); |
| 12084 | } |
| 12085 | |
| 12086 | static void compile_matchingpath(compiler_common *common, PCRE2_SPTR cc, PCRE2_SPTR ccend, backtrack_common *parent) |
| 12087 | { |
| 12088 | DEFINE_COMPILER; |
| 12089 | backtrack_common *backtrack; |
| 12090 | BOOL has_then_trap = FALSE; |
| 12091 | then_trap_backtrack *save_then_trap = NULL; |
| 12092 | |
| 12093 | SLJIT_ASSERT(*ccend == OP_END || (*ccend >= OP_ALT && *ccend <= OP_KETRPOS)); |
| 12094 | |
| 12095 | if (common->has_then && common->then_offsets[cc - common->start] != 0) |
| 12096 | { |
| 12097 | SLJIT_ASSERT(*ccend != OP_END && common->control_head_ptr != 0); |
| 12098 | has_then_trap = TRUE; |
| 12099 | save_then_trap = common->then_trap; |
| 12100 | /* Tail item on backtrack. */ |
| 12101 | compile_then_trap_matchingpath(common, cc, ccend, parent); |
| 12102 | } |
| 12103 | |
| 12104 | while (cc < ccend) |
| 12105 | { |
| 12106 | switch(*cc) |
| 12107 | { |
| 12108 | case OP_SOD: |
| 12109 | case OP_SOM: |
| 12110 | case OP_NOT_WORD_BOUNDARY: |
| 12111 | case OP_WORD_BOUNDARY: |
| 12112 | case OP_EODN: |
| 12113 | case OP_EOD: |
| 12114 | case OP_DOLL: |
| 12115 | case OP_DOLLM: |
| 12116 | case OP_CIRC: |
| 12117 | case OP_CIRCM: |
| 12118 | case OP_REVERSE: |
| 12119 | cc = compile_simple_assertion_matchingpath(common, *cc, cc + 1, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks); |
| 12120 | break; |
| 12121 | |
| 12122 | case OP_NOT_DIGIT: |
| 12123 | case OP_DIGIT: |
| 12124 | case OP_NOT_WHITESPACE: |
| 12125 | case OP_WHITESPACE: |
| 12126 | case OP_NOT_WORDCHAR: |
| 12127 | case OP_WORDCHAR: |
| 12128 | case OP_ANY: |
| 12129 | case OP_ALLANY: |
| 12130 | case OP_ANYBYTE: |
| 12131 | case OP_NOTPROP: |
| 12132 | case OP_PROP: |
| 12133 | case OP_ANYNL: |
| 12134 | case OP_NOT_HSPACE: |
| 12135 | case OP_HSPACE: |
| 12136 | case OP_NOT_VSPACE: |
| 12137 | case OP_VSPACE: |
| 12138 | case OP_EXTUNI: |
| 12139 | case OP_NOT: |
| 12140 | case OP_NOTI: |
| 12141 | cc = compile_char1_matchingpath(common, *cc, cc + 1, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks, TRUE); |
| 12142 | break; |
| 12143 | |
| 12144 | case OP_SET_SOM: |
| 12145 | PUSH_BACKTRACK_NOVALUE(sizeof(backtrack_common), cc); |
| 12146 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(0)); |
| 12147 | allocate_stack(common, 1); |
| 12148 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(0), STR_PTR, 0); |
| 12149 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP2, 0); |
| 12150 | cc++; |
| 12151 | break; |
| 12152 | |
| 12153 | case OP_CHAR: |
| 12154 | case OP_CHARI: |
| 12155 | if (common->mode == PCRE2_JIT_COMPLETE) |
| 12156 | cc = compile_charn_matchingpath(common, cc, ccend, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks); |
| 12157 | else |
| 12158 | cc = compile_char1_matchingpath(common, *cc, cc + 1, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks, TRUE); |
| 12159 | break; |
| 12160 | |
| 12161 | case OP_STAR: |
| 12162 | case OP_MINSTAR: |
| 12163 | case OP_PLUS: |
| 12164 | case OP_MINPLUS: |
| 12165 | case OP_QUERY: |
| 12166 | case OP_MINQUERY: |
| 12167 | case OP_UPTO: |
| 12168 | case OP_MINUPTO: |
| 12169 | case OP_EXACT: |
| 12170 | case OP_POSSTAR: |
| 12171 | case OP_POSPLUS: |
| 12172 | case OP_POSQUERY: |
| 12173 | case OP_POSUPTO: |
| 12174 | case OP_STARI: |
| 12175 | case OP_MINSTARI: |
| 12176 | case OP_PLUSI: |
| 12177 | case OP_MINPLUSI: |
| 12178 | case OP_QUERYI: |
| 12179 | case OP_MINQUERYI: |
| 12180 | case OP_UPTOI: |
| 12181 | case OP_MINUPTOI: |
| 12182 | case OP_EXACTI: |
| 12183 | case OP_POSSTARI: |
| 12184 | case OP_POSPLUSI: |
| 12185 | case OP_POSQUERYI: |
| 12186 | case OP_POSUPTOI: |
| 12187 | case OP_NOTSTAR: |
| 12188 | case OP_NOTMINSTAR: |
| 12189 | case OP_NOTPLUS: |
| 12190 | case OP_NOTMINPLUS: |
| 12191 | case OP_NOTQUERY: |
| 12192 | case OP_NOTMINQUERY: |
| 12193 | case OP_NOTUPTO: |
| 12194 | case OP_NOTMINUPTO: |
| 12195 | case OP_NOTEXACT: |
| 12196 | case OP_NOTPOSSTAR: |
| 12197 | case OP_NOTPOSPLUS: |
| 12198 | case OP_NOTPOSQUERY: |
| 12199 | case OP_NOTPOSUPTO: |
| 12200 | case OP_NOTSTARI: |
| 12201 | case OP_NOTMINSTARI: |
| 12202 | case OP_NOTPLUSI: |
| 12203 | case OP_NOTMINPLUSI: |
| 12204 | case OP_NOTQUERYI: |
| 12205 | case OP_NOTMINQUERYI: |
| 12206 | case OP_NOTUPTOI: |
| 12207 | case OP_NOTMINUPTOI: |
| 12208 | case OP_NOTEXACTI: |
| 12209 | case OP_NOTPOSSTARI: |
| 12210 | case OP_NOTPOSPLUSI: |
| 12211 | case OP_NOTPOSQUERYI: |
| 12212 | case OP_NOTPOSUPTOI: |
| 12213 | case OP_TYPESTAR: |
| 12214 | case OP_TYPEMINSTAR: |
| 12215 | case OP_TYPEPLUS: |
| 12216 | case OP_TYPEMINPLUS: |
| 12217 | case OP_TYPEQUERY: |
| 12218 | case OP_TYPEMINQUERY: |
| 12219 | case OP_TYPEUPTO: |
| 12220 | case OP_TYPEMINUPTO: |
| 12221 | case OP_TYPEEXACT: |
| 12222 | case OP_TYPEPOSSTAR: |
| 12223 | case OP_TYPEPOSPLUS: |
| 12224 | case OP_TYPEPOSQUERY: |
| 12225 | case OP_TYPEPOSUPTO: |
| 12226 | cc = compile_iterator_matchingpath(common, cc, parent); |
| 12227 | break; |
| 12228 | |
| 12229 | case OP_CLASS: |
| 12230 | case OP_NCLASS: |
| 12231 | if (cc[1 + (32 / sizeof(PCRE2_UCHAR))] >= OP_CRSTAR && cc[1 + (32 / sizeof(PCRE2_UCHAR))] <= OP_CRPOSRANGE) |
| 12232 | cc = compile_iterator_matchingpath(common, cc, parent); |
| 12233 | else |
| 12234 | cc = compile_char1_matchingpath(common, *cc, cc + 1, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks, TRUE); |
| 12235 | break; |
| 12236 | |
| 12237 | #if defined SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH == 16 || PCRE2_CODE_UNIT_WIDTH == 32 |
| 12238 | case OP_XCLASS: |
| 12239 | if (*(cc + GET(cc, 1)) >= OP_CRSTAR && *(cc + GET(cc, 1)) <= OP_CRPOSRANGE) |
| 12240 | cc = compile_iterator_matchingpath(common, cc, parent); |
| 12241 | else |
| 12242 | cc = compile_char1_matchingpath(common, *cc, cc + 1, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks, TRUE); |
| 12243 | break; |
| 12244 | #endif |
| 12245 | |
| 12246 | case OP_REF: |
| 12247 | case OP_REFI: |
| 12248 | if (cc[1 + IMM2_SIZE] >= OP_CRSTAR && cc[1 + IMM2_SIZE] <= OP_CRPOSRANGE) |
| 12249 | cc = compile_ref_iterator_matchingpath(common, cc, parent); |
| 12250 | else |
| 12251 | { |
| 12252 | compile_ref_matchingpath(common, cc, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks, TRUE, FALSE); |
| 12253 | cc += 1 + IMM2_SIZE; |
| 12254 | } |
| 12255 | break; |
| 12256 | |
| 12257 | case OP_DNREF: |
| 12258 | case OP_DNREFI: |
| 12259 | if (cc[1 + 2 * IMM2_SIZE] >= OP_CRSTAR && cc[1 + 2 * IMM2_SIZE] <= OP_CRPOSRANGE) |
| 12260 | cc = compile_ref_iterator_matchingpath(common, cc, parent); |
| 12261 | else |
| 12262 | { |
| 12263 | compile_dnref_search(common, cc, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks); |
| 12264 | compile_ref_matchingpath(common, cc, parent->top != NULL ? &parent->top->nextbacktracks : &parent->topbacktracks, TRUE, FALSE); |
| 12265 | cc += 1 + 2 * IMM2_SIZE; |
| 12266 | } |
| 12267 | break; |
| 12268 | |
| 12269 | case OP_RECURSE: |
| 12270 | cc = compile_recurse_matchingpath(common, cc, parent); |
| 12271 | break; |
| 12272 | |
| 12273 | case OP_CALLOUT: |
| 12274 | case OP_CALLOUT_STR: |
| 12275 | cc = compile_callout_matchingpath(common, cc, parent); |
| 12276 | break; |
| 12277 | |
| 12278 | case OP_ASSERT: |
| 12279 | case OP_ASSERT_NOT: |
| 12280 | case OP_ASSERTBACK: |
| 12281 | case OP_ASSERTBACK_NOT: |
| 12282 | PUSH_BACKTRACK_NOVALUE(sizeof(assert_backtrack), cc); |
| 12283 | cc = compile_assert_matchingpath(common, cc, BACKTRACK_AS(assert_backtrack), FALSE); |
| 12284 | break; |
| 12285 | |
| 12286 | case OP_BRAMINZERO: |
| 12287 | PUSH_BACKTRACK_NOVALUE(sizeof(braminzero_backtrack), cc); |
| 12288 | cc = bracketend(cc + 1); |
| 12289 | if (*(cc - 1 - LINK_SIZE) != OP_KETRMIN) |
| 12290 | { |
| 12291 | allocate_stack(common, 1); |
| 12292 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0); |
| 12293 | } |
| 12294 | else |
| 12295 | { |
| 12296 | allocate_stack(common, 2); |
| 12297 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0); |
| 12298 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), STR_PTR, 0); |
| 12299 | } |
| 12300 | BACKTRACK_AS(braminzero_backtrack)->matchingpath = LABEL(); |
| 12301 | count_match(common); |
| 12302 | break; |
| 12303 | |
| 12304 | case OP_ASSERT_NA: |
| 12305 | case OP_ASSERTBACK_NA: |
| 12306 | case OP_ONCE: |
| 12307 | case OP_SCRIPT_RUN: |
| 12308 | case OP_BRA: |
| 12309 | case OP_CBRA: |
| 12310 | case OP_COND: |
| 12311 | case OP_SBRA: |
| 12312 | case OP_SCBRA: |
| 12313 | case OP_SCOND: |
| 12314 | cc = compile_bracket_matchingpath(common, cc, parent); |
| 12315 | break; |
| 12316 | |
| 12317 | case OP_BRAZERO: |
| 12318 | if (cc[1] > OP_ASSERTBACK_NOT) |
| 12319 | cc = compile_bracket_matchingpath(common, cc, parent); |
| 12320 | else |
| 12321 | { |
| 12322 | PUSH_BACKTRACK_NOVALUE(sizeof(assert_backtrack), cc); |
| 12323 | cc = compile_assert_matchingpath(common, cc, BACKTRACK_AS(assert_backtrack), FALSE); |
| 12324 | } |
| 12325 | break; |
| 12326 | |
| 12327 | case OP_BRAPOS: |
| 12328 | case OP_CBRAPOS: |
| 12329 | case OP_SBRAPOS: |
| 12330 | case OP_SCBRAPOS: |
| 12331 | case OP_BRAPOSZERO: |
| 12332 | cc = compile_bracketpos_matchingpath(common, cc, parent); |
| 12333 | break; |
| 12334 | |
| 12335 | case OP_MARK: |
| 12336 | PUSH_BACKTRACK_NOVALUE(sizeof(backtrack_common), cc); |
| 12337 | SLJIT_ASSERT(common->mark_ptr != 0); |
| 12338 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), common->mark_ptr); |
| 12339 | allocate_stack(common, common->has_skip_arg ? 5 : 1); |
| 12340 | if (HAS_VIRTUAL_REGISTERS) |
| 12341 | OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0); |
| 12342 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(common->has_skip_arg ? 4 : 0), TMP2, 0); |
| 12343 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, (sljit_sw)(cc + 2)); |
| 12344 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->mark_ptr, TMP2, 0); |
| 12345 | OP1(SLJIT_MOV, SLJIT_MEM1(HAS_VIRTUAL_REGISTERS ? TMP1 : ARGUMENTS), SLJIT_OFFSETOF(jit_arguments, mark_ptr), TMP2, 0); |
| 12346 | if (common->has_skip_arg) |
| 12347 | { |
| 12348 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr); |
| 12349 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, STACK_TOP, 0); |
| 12350 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, type_mark); |
| 12351 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(2), SLJIT_IMM, (sljit_sw)(cc + 2)); |
| 12352 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(3), STR_PTR, 0); |
| 12353 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP1, 0); |
| 12354 | } |
| 12355 | cc += 1 + 2 + cc[1]; |
| 12356 | break; |
| 12357 | |
| 12358 | case OP_PRUNE: |
| 12359 | case OP_PRUNE_ARG: |
| 12360 | case OP_SKIP: |
| 12361 | case OP_SKIP_ARG: |
| 12362 | case OP_THEN: |
| 12363 | case OP_THEN_ARG: |
| 12364 | case OP_COMMIT: |
| 12365 | case OP_COMMIT_ARG: |
| 12366 | cc = compile_control_verb_matchingpath(common, cc, parent); |
| 12367 | break; |
| 12368 | |
| 12369 | case OP_FAIL: |
| 12370 | case OP_ACCEPT: |
| 12371 | case OP_ASSERT_ACCEPT: |
| 12372 | cc = compile_fail_accept_matchingpath(common, cc, parent); |
| 12373 | break; |
| 12374 | |
| 12375 | case OP_CLOSE: |
| 12376 | cc = compile_close_matchingpath(common, cc); |
| 12377 | break; |
| 12378 | |
| 12379 | case OP_SKIPZERO: |
| 12380 | cc = bracketend(cc + 1); |
| 12381 | break; |
| 12382 | |
| 12383 | default: |
| 12384 | SLJIT_UNREACHABLE(); |
| 12385 | return; |
| 12386 | } |
| 12387 | if (cc == NULL) |
| 12388 | return; |
| 12389 | } |
| 12390 | |
| 12391 | if (has_then_trap) |
| 12392 | { |
| 12393 | /* Head item on backtrack. */ |
| 12394 | PUSH_BACKTRACK_NOVALUE(sizeof(then_trap_backtrack), cc); |
| 12395 | BACKTRACK_AS(then_trap_backtrack)->common.cc = then_trap_opcode; |
| 12396 | BACKTRACK_AS(then_trap_backtrack)->then_trap = common->then_trap; |
| 12397 | common->then_trap = save_then_trap; |
| 12398 | } |
| 12399 | SLJIT_ASSERT(cc == ccend); |
| 12400 | } |
| 12401 | |
| 12402 | #undef PUSH_BACKTRACK |
| 12403 | #undef PUSH_BACKTRACK_NOVALUE |
| 12404 | #undef BACKTRACK_AS |
| 12405 | |
| 12406 | #define COMPILE_BACKTRACKINGPATH(current) \ |
| 12407 | do \ |
| 12408 | { \ |
| 12409 | compile_backtrackingpath(common, (current)); \ |
| 12410 | if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler))) \ |
| 12411 | return; \ |
| 12412 | } \ |
| 12413 | while (0) |
| 12414 | |
| 12415 | #define CURRENT_AS(type) ((type *)current) |
| 12416 | |
| 12417 | static void compile_iterator_backtrackingpath(compiler_common *common, struct backtrack_common *current) |
| 12418 | { |
| 12419 | DEFINE_COMPILER; |
| 12420 | PCRE2_SPTR cc = current->cc; |
| 12421 | PCRE2_UCHAR opcode; |
| 12422 | PCRE2_UCHAR type; |
| 12423 | sljit_u32 max = 0, exact; |
| 12424 | struct sljit_label *label = NULL; |
| 12425 | struct sljit_jump *jump = NULL; |
| 12426 | jump_list *jumplist = NULL; |
| 12427 | PCRE2_SPTR end; |
| 12428 | int private_data_ptr = PRIVATE_DATA(cc); |
| 12429 | int base = (private_data_ptr == 0) ? SLJIT_MEM1(STACK_TOP) : SLJIT_MEM1(SLJIT_SP); |
| 12430 | int offset0 = (private_data_ptr == 0) ? STACK(0) : private_data_ptr; |
| 12431 | int offset1 = (private_data_ptr == 0) ? STACK(1) : private_data_ptr + (int)sizeof(sljit_sw); |
| 12432 | |
| 12433 | cc = get_iterator_parameters(common, cc, &opcode, &type, &max, &exact, &end); |
| 12434 | |
| 12435 | switch(opcode) |
| 12436 | { |
| 12437 | case OP_STAR: |
| 12438 | case OP_UPTO: |
| 12439 | if (type == OP_ANYNL || type == OP_EXTUNI) |
| 12440 | { |
| 12441 | SLJIT_ASSERT(private_data_ptr == 0); |
| 12442 | set_jumps(CURRENT_AS(char_iterator_backtrack)->u.backtracks, LABEL()); |
| 12443 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 12444 | free_stack(common, 1); |
| 12445 | CMPTO(SLJIT_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0, CURRENT_AS(char_iterator_backtrack)->matchingpath); |
| 12446 | } |
| 12447 | else |
| 12448 | { |
| 12449 | if (CURRENT_AS(char_iterator_backtrack)->u.charpos.enabled) |
| 12450 | { |
| 12451 | OP1(SLJIT_MOV, STR_PTR, 0, base, offset0); |
| 12452 | OP1(SLJIT_MOV, TMP2, 0, base, offset1); |
| 12453 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 12454 | |
| 12455 | jump = CMP(SLJIT_LESS_EQUAL, STR_PTR, 0, TMP2, 0); |
| 12456 | label = LABEL(); |
| 12457 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-1)); |
| 12458 | OP1(SLJIT_MOV, base, offset0, STR_PTR, 0); |
| 12459 | if (CURRENT_AS(char_iterator_backtrack)->u.charpos.othercasebit != 0) |
| 12460 | OP2(SLJIT_OR, TMP1, 0, TMP1, 0, SLJIT_IMM, CURRENT_AS(char_iterator_backtrack)->u.charpos.othercasebit); |
| 12461 | CMPTO(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, CURRENT_AS(char_iterator_backtrack)->u.charpos.chr, CURRENT_AS(char_iterator_backtrack)->matchingpath); |
| 12462 | move_back(common, NULL, TRUE); |
| 12463 | CMPTO(SLJIT_GREATER, STR_PTR, 0, TMP2, 0, label); |
| 12464 | } |
| 12465 | else |
| 12466 | { |
| 12467 | OP1(SLJIT_MOV, STR_PTR, 0, base, offset0); |
| 12468 | jump = CMP(SLJIT_LESS_EQUAL, STR_PTR, 0, base, offset1); |
| 12469 | move_back(common, NULL, TRUE); |
| 12470 | OP1(SLJIT_MOV, base, offset0, STR_PTR, 0); |
| 12471 | JUMPTO(SLJIT_JUMP, CURRENT_AS(char_iterator_backtrack)->matchingpath); |
| 12472 | } |
| 12473 | JUMPHERE(jump); |
| 12474 | if (private_data_ptr == 0) |
| 12475 | free_stack(common, 2); |
| 12476 | } |
| 12477 | break; |
| 12478 | |
| 12479 | case OP_MINSTAR: |
| 12480 | OP1(SLJIT_MOV, STR_PTR, 0, base, offset0); |
| 12481 | compile_char1_matchingpath(common, type, cc, &jumplist, TRUE); |
| 12482 | OP1(SLJIT_MOV, base, offset0, STR_PTR, 0); |
| 12483 | JUMPTO(SLJIT_JUMP, CURRENT_AS(char_iterator_backtrack)->matchingpath); |
| 12484 | set_jumps(jumplist, LABEL()); |
| 12485 | if (private_data_ptr == 0) |
| 12486 | free_stack(common, 1); |
| 12487 | break; |
| 12488 | |
| 12489 | case OP_MINUPTO: |
| 12490 | OP1(SLJIT_MOV, TMP1, 0, base, offset1); |
| 12491 | OP1(SLJIT_MOV, STR_PTR, 0, base, offset0); |
| 12492 | OP2(SLJIT_SUB | SLJIT_SET_Z, TMP1, 0, TMP1, 0, SLJIT_IMM, 1); |
| 12493 | add_jump(compiler, &jumplist, JUMP(SLJIT_ZERO)); |
| 12494 | |
| 12495 | OP1(SLJIT_MOV, base, offset1, TMP1, 0); |
| 12496 | compile_char1_matchingpath(common, type, cc, &jumplist, TRUE); |
| 12497 | OP1(SLJIT_MOV, base, offset0, STR_PTR, 0); |
| 12498 | JUMPTO(SLJIT_JUMP, CURRENT_AS(char_iterator_backtrack)->matchingpath); |
| 12499 | |
| 12500 | set_jumps(jumplist, LABEL()); |
| 12501 | if (private_data_ptr == 0) |
| 12502 | free_stack(common, 2); |
| 12503 | break; |
| 12504 | |
| 12505 | case OP_QUERY: |
| 12506 | OP1(SLJIT_MOV, STR_PTR, 0, base, offset0); |
| 12507 | OP1(SLJIT_MOV, base, offset0, SLJIT_IMM, 0); |
| 12508 | CMPTO(SLJIT_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0, CURRENT_AS(char_iterator_backtrack)->matchingpath); |
| 12509 | jump = JUMP(SLJIT_JUMP); |
| 12510 | set_jumps(CURRENT_AS(char_iterator_backtrack)->u.backtracks, LABEL()); |
| 12511 | OP1(SLJIT_MOV, STR_PTR, 0, base, offset0); |
| 12512 | OP1(SLJIT_MOV, base, offset0, SLJIT_IMM, 0); |
| 12513 | JUMPTO(SLJIT_JUMP, CURRENT_AS(char_iterator_backtrack)->matchingpath); |
| 12514 | JUMPHERE(jump); |
| 12515 | if (private_data_ptr == 0) |
| 12516 | free_stack(common, 1); |
| 12517 | break; |
| 12518 | |
| 12519 | case OP_MINQUERY: |
| 12520 | OP1(SLJIT_MOV, STR_PTR, 0, base, offset0); |
| 12521 | OP1(SLJIT_MOV, base, offset0, SLJIT_IMM, 0); |
| 12522 | jump = CMP(SLJIT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0); |
| 12523 | compile_char1_matchingpath(common, type, cc, &jumplist, TRUE); |
| 12524 | JUMPTO(SLJIT_JUMP, CURRENT_AS(char_iterator_backtrack)->matchingpath); |
| 12525 | set_jumps(jumplist, LABEL()); |
| 12526 | JUMPHERE(jump); |
| 12527 | if (private_data_ptr == 0) |
| 12528 | free_stack(common, 1); |
| 12529 | break; |
| 12530 | |
| 12531 | case OP_EXACT: |
| 12532 | case OP_POSSTAR: |
| 12533 | case OP_POSQUERY: |
| 12534 | case OP_POSUPTO: |
| 12535 | break; |
| 12536 | |
| 12537 | default: |
| 12538 | SLJIT_UNREACHABLE(); |
| 12539 | break; |
| 12540 | } |
| 12541 | |
| 12542 | set_jumps(current->topbacktracks, LABEL()); |
| 12543 | } |
| 12544 | |
| 12545 | static SLJIT_INLINE void compile_ref_iterator_backtrackingpath(compiler_common *common, struct backtrack_common *current) |
| 12546 | { |
| 12547 | DEFINE_COMPILER; |
| 12548 | PCRE2_SPTR cc = current->cc; |
| 12549 | BOOL ref = (*cc == OP_REF || *cc == OP_REFI); |
| 12550 | PCRE2_UCHAR type; |
| 12551 | |
| 12552 | type = cc[ref ? 1 + IMM2_SIZE : 1 + 2 * IMM2_SIZE]; |
| 12553 | |
| 12554 | if ((type & 0x1) == 0) |
| 12555 | { |
| 12556 | /* Maximize case. */ |
| 12557 | set_jumps(current->topbacktracks, LABEL()); |
| 12558 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 12559 | free_stack(common, 1); |
| 12560 | CMPTO(SLJIT_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0, CURRENT_AS(ref_iterator_backtrack)->matchingpath); |
| 12561 | return; |
| 12562 | } |
| 12563 | |
| 12564 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 12565 | CMPTO(SLJIT_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0, CURRENT_AS(ref_iterator_backtrack)->matchingpath); |
| 12566 | set_jumps(current->topbacktracks, LABEL()); |
| 12567 | free_stack(common, ref ? 2 : 3); |
| 12568 | } |
| 12569 | |
| 12570 | static SLJIT_INLINE void compile_recurse_backtrackingpath(compiler_common *common, struct backtrack_common *current) |
| 12571 | { |
| 12572 | DEFINE_COMPILER; |
| 12573 | recurse_entry *entry; |
| 12574 | |
| 12575 | if (!CURRENT_AS(recurse_backtrack)->inlined_pattern) |
| 12576 | { |
| 12577 | entry = CURRENT_AS(recurse_backtrack)->entry; |
| 12578 | if (entry->backtrack_label == NULL) |
| 12579 | add_jump(compiler, &entry->backtrack_calls, JUMP(SLJIT_FAST_CALL)); |
| 12580 | else |
| 12581 | JUMPTO(SLJIT_FAST_CALL, entry->backtrack_label); |
| 12582 | CMPTO(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, 0, CURRENT_AS(recurse_backtrack)->matchingpath); |
| 12583 | } |
| 12584 | else |
| 12585 | compile_backtrackingpath(common, current->top); |
| 12586 | |
| 12587 | set_jumps(current->topbacktracks, LABEL()); |
| 12588 | } |
| 12589 | |
| 12590 | static void compile_assert_backtrackingpath(compiler_common *common, struct backtrack_common *current) |
| 12591 | { |
| 12592 | DEFINE_COMPILER; |
| 12593 | PCRE2_SPTR cc = current->cc; |
| 12594 | PCRE2_UCHAR bra = OP_BRA; |
| 12595 | struct sljit_jump *brajump = NULL; |
| 12596 | |
| 12597 | SLJIT_ASSERT(*cc != OP_BRAMINZERO); |
| 12598 | if (*cc == OP_BRAZERO) |
| 12599 | { |
| 12600 | bra = *cc; |
| 12601 | cc++; |
| 12602 | } |
| 12603 | |
| 12604 | if (bra == OP_BRAZERO) |
| 12605 | { |
| 12606 | SLJIT_ASSERT(current->topbacktracks == NULL); |
| 12607 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 12608 | } |
| 12609 | |
| 12610 | if (CURRENT_AS(assert_backtrack)->framesize < 0) |
| 12611 | { |
| 12612 | set_jumps(current->topbacktracks, LABEL()); |
| 12613 | |
| 12614 | if (bra == OP_BRAZERO) |
| 12615 | { |
| 12616 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0); |
| 12617 | CMPTO(SLJIT_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0, CURRENT_AS(assert_backtrack)->matchingpath); |
| 12618 | free_stack(common, 1); |
| 12619 | } |
| 12620 | return; |
| 12621 | } |
| 12622 | |
| 12623 | if (bra == OP_BRAZERO) |
| 12624 | { |
| 12625 | if (*cc == OP_ASSERT_NOT || *cc == OP_ASSERTBACK_NOT) |
| 12626 | { |
| 12627 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0); |
| 12628 | CMPTO(SLJIT_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0, CURRENT_AS(assert_backtrack)->matchingpath); |
| 12629 | free_stack(common, 1); |
| 12630 | return; |
| 12631 | } |
| 12632 | free_stack(common, 1); |
| 12633 | brajump = CMP(SLJIT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0); |
| 12634 | } |
| 12635 | |
| 12636 | if (*cc == OP_ASSERT || *cc == OP_ASSERTBACK) |
| 12637 | { |
| 12638 | OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), CURRENT_AS(assert_backtrack)->private_data_ptr); |
| 12639 | add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL)); |
| 12640 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(-2)); |
| 12641 | OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, (CURRENT_AS(assert_backtrack)->framesize - 1) * sizeof(sljit_sw)); |
| 12642 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), CURRENT_AS(assert_backtrack)->private_data_ptr, TMP1, 0); |
| 12643 | |
| 12644 | set_jumps(current->topbacktracks, LABEL()); |
| 12645 | } |
| 12646 | else |
| 12647 | set_jumps(current->topbacktracks, LABEL()); |
| 12648 | |
| 12649 | if (bra == OP_BRAZERO) |
| 12650 | { |
| 12651 | /* We know there is enough place on the stack. */ |
| 12652 | OP2(SLJIT_SUB, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, sizeof(sljit_sw)); |
| 12653 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), SLJIT_IMM, 0); |
| 12654 | JUMPTO(SLJIT_JUMP, CURRENT_AS(assert_backtrack)->matchingpath); |
| 12655 | JUMPHERE(brajump); |
| 12656 | } |
| 12657 | } |
| 12658 | |
| 12659 | static void compile_bracket_backtrackingpath(compiler_common *common, struct backtrack_common *current) |
| 12660 | { |
| 12661 | DEFINE_COMPILER; |
| 12662 | int opcode, stacksize, alt_count, alt_max; |
| 12663 | int offset = 0; |
| 12664 | int private_data_ptr = CURRENT_AS(bracket_backtrack)->private_data_ptr; |
| 12665 | int repeat_ptr = 0, repeat_type = 0, repeat_count = 0; |
| 12666 | PCRE2_SPTR cc = current->cc; |
| 12667 | PCRE2_SPTR ccbegin; |
| 12668 | PCRE2_SPTR ccprev; |
| 12669 | PCRE2_UCHAR bra = OP_BRA; |
| 12670 | PCRE2_UCHAR ket; |
| 12671 | assert_backtrack *assert; |
| 12672 | BOOL has_alternatives; |
| 12673 | BOOL needs_control_head = FALSE; |
| 12674 | struct sljit_jump *brazero = NULL; |
| 12675 | struct sljit_jump *next_alt = NULL; |
| 12676 | struct sljit_jump *once = NULL; |
| 12677 | struct sljit_jump *cond = NULL; |
| 12678 | struct sljit_label *rmin_label = NULL; |
| 12679 | struct sljit_label *exact_label = NULL; |
| 12680 | struct sljit_put_label *put_label = NULL; |
| 12681 | |
| 12682 | if (*cc == OP_BRAZERO || *cc == OP_BRAMINZERO) |
| 12683 | { |
| 12684 | bra = *cc; |
| 12685 | cc++; |
| 12686 | } |
| 12687 | |
| 12688 | opcode = *cc; |
| 12689 | ccbegin = bracketend(cc) - 1 - LINK_SIZE; |
| 12690 | ket = *ccbegin; |
| 12691 | if (ket == OP_KET && PRIVATE_DATA(ccbegin) != 0) |
| 12692 | { |
| 12693 | repeat_ptr = PRIVATE_DATA(ccbegin); |
| 12694 | repeat_type = PRIVATE_DATA(ccbegin + 2); |
| 12695 | repeat_count = PRIVATE_DATA(ccbegin + 3); |
| 12696 | SLJIT_ASSERT(repeat_type != 0 && repeat_count != 0); |
| 12697 | if (repeat_type == OP_UPTO) |
| 12698 | ket = OP_KETRMAX; |
| 12699 | if (repeat_type == OP_MINUPTO) |
| 12700 | ket = OP_KETRMIN; |
| 12701 | } |
| 12702 | ccbegin = cc; |
| 12703 | cc += GET(cc, 1); |
| 12704 | has_alternatives = *cc == OP_ALT; |
| 12705 | if (SLJIT_UNLIKELY(opcode == OP_COND) || SLJIT_UNLIKELY(opcode == OP_SCOND)) |
| 12706 | has_alternatives = (ccbegin[1 + LINK_SIZE] >= OP_ASSERT && ccbegin[1 + LINK_SIZE] <= OP_ASSERTBACK_NOT) || CURRENT_AS(bracket_backtrack)->u.condfailed != NULL; |
| 12707 | if (opcode == OP_CBRA || opcode == OP_SCBRA) |
| 12708 | offset = (GET2(ccbegin, 1 + LINK_SIZE)) << 1; |
| 12709 | if (SLJIT_UNLIKELY(opcode == OP_COND) && (*cc == OP_KETRMAX || *cc == OP_KETRMIN)) |
| 12710 | opcode = OP_SCOND; |
| 12711 | |
| 12712 | alt_max = has_alternatives ? no_alternatives(ccbegin) : 0; |
| 12713 | |
| 12714 | /* Decoding the needs_control_head in framesize. */ |
| 12715 | if (opcode == OP_ONCE) |
| 12716 | { |
| 12717 | needs_control_head = (CURRENT_AS(bracket_backtrack)->u.framesize & 0x1) != 0; |
| 12718 | CURRENT_AS(bracket_backtrack)->u.framesize >>= 1; |
| 12719 | } |
| 12720 | |
| 12721 | if (ket != OP_KET && repeat_type != 0) |
| 12722 | { |
| 12723 | /* TMP1 is used in OP_KETRMIN below. */ |
| 12724 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 12725 | free_stack(common, 1); |
| 12726 | if (repeat_type == OP_UPTO) |
| 12727 | OP2(SLJIT_ADD, SLJIT_MEM1(SLJIT_SP), repeat_ptr, TMP1, 0, SLJIT_IMM, 1); |
| 12728 | else |
| 12729 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), repeat_ptr, TMP1, 0); |
| 12730 | } |
| 12731 | |
| 12732 | if (ket == OP_KETRMAX) |
| 12733 | { |
| 12734 | if (bra == OP_BRAZERO) |
| 12735 | { |
| 12736 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 12737 | free_stack(common, 1); |
| 12738 | brazero = CMP(SLJIT_EQUAL, TMP1, 0, SLJIT_IMM, 0); |
| 12739 | } |
| 12740 | } |
| 12741 | else if (ket == OP_KETRMIN) |
| 12742 | { |
| 12743 | if (bra != OP_BRAMINZERO) |
| 12744 | { |
| 12745 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 12746 | if (repeat_type != 0) |
| 12747 | { |
| 12748 | /* TMP1 was set a few lines above. */ |
| 12749 | CMPTO(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, 0, CURRENT_AS(bracket_backtrack)->recursive_matchingpath); |
| 12750 | /* Drop STR_PTR for non-greedy plus quantifier. */ |
| 12751 | if (opcode != OP_ONCE) |
| 12752 | free_stack(common, 1); |
| 12753 | } |
| 12754 | else if (opcode >= OP_SBRA || opcode == OP_ONCE) |
| 12755 | { |
| 12756 | /* Checking zero-length iteration. */ |
| 12757 | if (opcode != OP_ONCE || CURRENT_AS(bracket_backtrack)->u.framesize < 0) |
| 12758 | CMPTO(SLJIT_NOT_EQUAL, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr, CURRENT_AS(bracket_backtrack)->recursive_matchingpath); |
| 12759 | else |
| 12760 | { |
| 12761 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); |
| 12762 | CMPTO(SLJIT_NOT_EQUAL, STR_PTR, 0, SLJIT_MEM1(TMP1), STACK(-CURRENT_AS(bracket_backtrack)->u.framesize - 2), CURRENT_AS(bracket_backtrack)->recursive_matchingpath); |
| 12763 | } |
| 12764 | /* Drop STR_PTR for non-greedy plus quantifier. */ |
| 12765 | if (opcode != OP_ONCE) |
| 12766 | free_stack(common, 1); |
| 12767 | } |
| 12768 | else |
| 12769 | JUMPTO(SLJIT_JUMP, CURRENT_AS(bracket_backtrack)->recursive_matchingpath); |
| 12770 | } |
| 12771 | rmin_label = LABEL(); |
| 12772 | if (repeat_type != 0) |
| 12773 | OP2(SLJIT_ADD, SLJIT_MEM1(SLJIT_SP), repeat_ptr, SLJIT_MEM1(SLJIT_SP), repeat_ptr, SLJIT_IMM, 1); |
| 12774 | } |
| 12775 | else if (bra == OP_BRAZERO) |
| 12776 | { |
| 12777 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 12778 | free_stack(common, 1); |
| 12779 | brazero = CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, 0); |
| 12780 | } |
| 12781 | else if (repeat_type == OP_EXACT) |
| 12782 | { |
| 12783 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), repeat_ptr, SLJIT_IMM, 1); |
| 12784 | exact_label = LABEL(); |
| 12785 | } |
| 12786 | |
| 12787 | if (offset != 0) |
| 12788 | { |
| 12789 | if (common->capture_last_ptr != 0) |
| 12790 | { |
| 12791 | SLJIT_ASSERT(common->optimized_cbracket[offset >> 1] == 0); |
| 12792 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 12793 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(1)); |
| 12794 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr, TMP1, 0); |
| 12795 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(2)); |
| 12796 | free_stack(common, 3); |
| 12797 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset), TMP2, 0); |
| 12798 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1), TMP1, 0); |
| 12799 | } |
| 12800 | else if (common->optimized_cbracket[offset >> 1] == 0) |
| 12801 | { |
| 12802 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 12803 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(1)); |
| 12804 | free_stack(common, 2); |
| 12805 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset), TMP1, 0); |
| 12806 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1), TMP2, 0); |
| 12807 | } |
| 12808 | } |
| 12809 | |
| 12810 | if (SLJIT_UNLIKELY(opcode == OP_ONCE)) |
| 12811 | { |
| 12812 | if (CURRENT_AS(bracket_backtrack)->u.framesize >= 0) |
| 12813 | { |
| 12814 | OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); |
| 12815 | add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL)); |
| 12816 | OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, (CURRENT_AS(bracket_backtrack)->u.framesize - 1) * sizeof(sljit_sw)); |
| 12817 | } |
| 12818 | once = JUMP(SLJIT_JUMP); |
| 12819 | } |
| 12820 | else if (SLJIT_UNLIKELY(opcode == OP_COND) || SLJIT_UNLIKELY(opcode == OP_SCOND)) |
| 12821 | { |
| 12822 | if (has_alternatives) |
| 12823 | { |
| 12824 | /* Always exactly one alternative. */ |
| 12825 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 12826 | free_stack(common, 1); |
| 12827 | |
| 12828 | alt_max = 2; |
| 12829 | next_alt = CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, 0); |
| 12830 | } |
| 12831 | } |
| 12832 | else if (has_alternatives) |
| 12833 | { |
| 12834 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 12835 | free_stack(common, 1); |
| 12836 | |
| 12837 | if (alt_max > 3) |
| 12838 | { |
| 12839 | sljit_emit_ijump(compiler, SLJIT_JUMP, TMP1, 0); |
| 12840 | |
| 12841 | SLJIT_ASSERT(CURRENT_AS(bracket_backtrack)->u.matching_put_label); |
| 12842 | sljit_set_put_label(CURRENT_AS(bracket_backtrack)->u.matching_put_label, LABEL()); |
| 12843 | sljit_emit_op0(compiler, SLJIT_ENDBR); |
| 12844 | } |
| 12845 | else |
| 12846 | next_alt = CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, 0); |
| 12847 | } |
| 12848 | |
| 12849 | COMPILE_BACKTRACKINGPATH(current->top); |
| 12850 | if (current->topbacktracks) |
| 12851 | set_jumps(current->topbacktracks, LABEL()); |
| 12852 | |
| 12853 | if (SLJIT_UNLIKELY(opcode == OP_COND) || SLJIT_UNLIKELY(opcode == OP_SCOND)) |
| 12854 | { |
| 12855 | /* Conditional block always has at most one alternative. */ |
| 12856 | if (ccbegin[1 + LINK_SIZE] >= OP_ASSERT && ccbegin[1 + LINK_SIZE] <= OP_ASSERTBACK_NOT) |
| 12857 | { |
| 12858 | SLJIT_ASSERT(has_alternatives); |
| 12859 | assert = CURRENT_AS(bracket_backtrack)->u.assert; |
| 12860 | if (assert->framesize >= 0 && (ccbegin[1 + LINK_SIZE] == OP_ASSERT || ccbegin[1 + LINK_SIZE] == OP_ASSERTBACK)) |
| 12861 | { |
| 12862 | OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), assert->private_data_ptr); |
| 12863 | add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL)); |
| 12864 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(-2)); |
| 12865 | OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, (assert->framesize - 1) * sizeof(sljit_sw)); |
| 12866 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), assert->private_data_ptr, TMP1, 0); |
| 12867 | } |
| 12868 | cond = JUMP(SLJIT_JUMP); |
| 12869 | set_jumps(CURRENT_AS(bracket_backtrack)->u.assert->condfailed, LABEL()); |
| 12870 | } |
| 12871 | else if (CURRENT_AS(bracket_backtrack)->u.condfailed != NULL) |
| 12872 | { |
| 12873 | SLJIT_ASSERT(has_alternatives); |
| 12874 | cond = JUMP(SLJIT_JUMP); |
| 12875 | set_jumps(CURRENT_AS(bracket_backtrack)->u.condfailed, LABEL()); |
| 12876 | } |
| 12877 | else |
| 12878 | SLJIT_ASSERT(!has_alternatives); |
| 12879 | } |
| 12880 | |
| 12881 | if (has_alternatives) |
| 12882 | { |
| 12883 | alt_count = 1; |
| 12884 | do |
| 12885 | { |
| 12886 | current->top = NULL; |
| 12887 | current->topbacktracks = NULL; |
| 12888 | current->nextbacktracks = NULL; |
| 12889 | /* Conditional blocks always have an additional alternative, even if it is empty. */ |
| 12890 | if (*cc == OP_ALT) |
| 12891 | { |
| 12892 | ccprev = cc + 1 + LINK_SIZE; |
| 12893 | cc += GET(cc, 1); |
| 12894 | if (opcode != OP_COND && opcode != OP_SCOND) |
| 12895 | { |
| 12896 | if (opcode != OP_ONCE) |
| 12897 | { |
| 12898 | if (private_data_ptr != 0) |
| 12899 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); |
| 12900 | else |
| 12901 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 12902 | } |
| 12903 | else |
| 12904 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(needs_control_head ? 1 : 0)); |
| 12905 | } |
| 12906 | compile_matchingpath(common, ccprev, cc, current); |
| 12907 | if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler))) |
| 12908 | return; |
| 12909 | |
| 12910 | if (opcode == OP_ASSERT_NA || opcode == OP_ASSERTBACK_NA) |
| 12911 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), private_data_ptr); |
| 12912 | |
| 12913 | if (opcode == OP_SCRIPT_RUN) |
| 12914 | match_script_run_common(common, private_data_ptr, current); |
| 12915 | } |
| 12916 | |
| 12917 | /* Instructions after the current alternative is successfully matched. */ |
| 12918 | /* There is a similar code in compile_bracket_matchingpath. */ |
| 12919 | if (opcode == OP_ONCE) |
| 12920 | match_once_common(common, ket, CURRENT_AS(bracket_backtrack)->u.framesize, private_data_ptr, has_alternatives, needs_control_head); |
| 12921 | |
| 12922 | stacksize = 0; |
| 12923 | if (repeat_type == OP_MINUPTO) |
| 12924 | { |
| 12925 | /* We need to preserve the counter. TMP2 will be used below. */ |
| 12926 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), repeat_ptr); |
| 12927 | stacksize++; |
| 12928 | } |
| 12929 | if (ket != OP_KET || bra != OP_BRA) |
| 12930 | stacksize++; |
| 12931 | if (offset != 0) |
| 12932 | { |
| 12933 | if (common->capture_last_ptr != 0) |
| 12934 | stacksize++; |
| 12935 | if (common->optimized_cbracket[offset >> 1] == 0) |
| 12936 | stacksize += 2; |
| 12937 | } |
| 12938 | if (opcode != OP_ONCE) |
| 12939 | stacksize++; |
| 12940 | |
| 12941 | if (stacksize > 0) |
| 12942 | allocate_stack(common, stacksize); |
| 12943 | |
| 12944 | stacksize = 0; |
| 12945 | if (repeat_type == OP_MINUPTO) |
| 12946 | { |
| 12947 | /* TMP2 was set above. */ |
| 12948 | OP2(SLJIT_SUB, SLJIT_MEM1(STACK_TOP), STACK(stacksize), TMP2, 0, SLJIT_IMM, 1); |
| 12949 | stacksize++; |
| 12950 | } |
| 12951 | |
| 12952 | if (ket != OP_KET || bra != OP_BRA) |
| 12953 | { |
| 12954 | if (ket != OP_KET) |
| 12955 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), STR_PTR, 0); |
| 12956 | else |
| 12957 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), SLJIT_IMM, 0); |
| 12958 | stacksize++; |
| 12959 | } |
| 12960 | |
| 12961 | if (offset != 0) |
| 12962 | stacksize = match_capture_common(common, stacksize, offset, private_data_ptr); |
| 12963 | |
| 12964 | if (opcode != OP_ONCE) |
| 12965 | { |
| 12966 | if (alt_max <= 3) |
| 12967 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(stacksize), SLJIT_IMM, alt_count); |
| 12968 | else |
| 12969 | put_label = sljit_emit_put_label(compiler, SLJIT_MEM1(STACK_TOP), STACK(stacksize)); |
| 12970 | } |
| 12971 | |
| 12972 | if (offset != 0 && ket == OP_KETRMAX && common->optimized_cbracket[offset >> 1] != 0) |
| 12973 | { |
| 12974 | /* If ket is not OP_KETRMAX, this code path is executed after the jump to alternative_matchingpath. */ |
| 12975 | SLJIT_ASSERT(private_data_ptr == OVECTOR(offset + 0)); |
| 12976 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1), STR_PTR, 0); |
| 12977 | } |
| 12978 | |
| 12979 | JUMPTO(SLJIT_JUMP, CURRENT_AS(bracket_backtrack)->alternative_matchingpath); |
| 12980 | |
| 12981 | if (opcode != OP_ONCE) |
| 12982 | { |
| 12983 | if (alt_max <= 3) |
| 12984 | { |
| 12985 | JUMPHERE(next_alt); |
| 12986 | alt_count++; |
| 12987 | if (alt_count < alt_max) |
| 12988 | { |
| 12989 | SLJIT_ASSERT(alt_count == 2 && alt_max == 3); |
| 12990 | next_alt = CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, 1); |
| 12991 | } |
| 12992 | } |
| 12993 | else |
| 12994 | { |
| 12995 | sljit_set_put_label(put_label, LABEL()); |
| 12996 | sljit_emit_op0(compiler, SLJIT_ENDBR); |
| 12997 | } |
| 12998 | } |
| 12999 | |
| 13000 | COMPILE_BACKTRACKINGPATH(current->top); |
| 13001 | if (current->topbacktracks) |
| 13002 | set_jumps(current->topbacktracks, LABEL()); |
| 13003 | SLJIT_ASSERT(!current->nextbacktracks); |
| 13004 | } |
| 13005 | while (*cc == OP_ALT); |
| 13006 | |
| 13007 | if (cond != NULL) |
| 13008 | { |
| 13009 | SLJIT_ASSERT(opcode == OP_COND || opcode == OP_SCOND); |
| 13010 | assert = CURRENT_AS(bracket_backtrack)->u.assert; |
| 13011 | if ((ccbegin[1 + LINK_SIZE] == OP_ASSERT_NOT || ccbegin[1 + LINK_SIZE] == OP_ASSERTBACK_NOT) && assert->framesize >= 0) |
| 13012 | { |
| 13013 | OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), assert->private_data_ptr); |
| 13014 | add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL)); |
| 13015 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(-2)); |
| 13016 | OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, (assert->framesize - 1) * sizeof(sljit_sw)); |
| 13017 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), assert->private_data_ptr, TMP1, 0); |
| 13018 | } |
| 13019 | JUMPHERE(cond); |
| 13020 | } |
| 13021 | |
| 13022 | /* Free the STR_PTR. */ |
| 13023 | if (private_data_ptr == 0) |
| 13024 | free_stack(common, 1); |
| 13025 | } |
| 13026 | |
| 13027 | if (offset != 0) |
| 13028 | { |
| 13029 | /* Using both tmp register is better for instruction scheduling. */ |
| 13030 | if (common->optimized_cbracket[offset >> 1] != 0) |
| 13031 | { |
| 13032 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 13033 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(1)); |
| 13034 | free_stack(common, 2); |
| 13035 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset), TMP1, 0); |
| 13036 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1), TMP2, 0); |
| 13037 | } |
| 13038 | else |
| 13039 | { |
| 13040 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 13041 | free_stack(common, 1); |
| 13042 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, TMP1, 0); |
| 13043 | } |
| 13044 | } |
| 13045 | else if (opcode == OP_ASSERT_NA || opcode == OP_ASSERTBACK_NA || opcode == OP_SCRIPT_RUN || opcode == OP_SBRA || opcode == OP_SCOND) |
| 13046 | { |
| 13047 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 13048 | free_stack(common, 1); |
| 13049 | } |
| 13050 | else if (opcode == OP_ONCE) |
| 13051 | { |
| 13052 | cc = ccbegin + GET(ccbegin, 1); |
| 13053 | stacksize = needs_control_head ? 1 : 0; |
| 13054 | |
| 13055 | if (CURRENT_AS(bracket_backtrack)->u.framesize >= 0) |
| 13056 | { |
| 13057 | /* Reset head and drop saved frame. */ |
| 13058 | stacksize += CURRENT_AS(bracket_backtrack)->u.framesize + ((ket != OP_KET || *cc == OP_ALT) ? 2 : 1); |
| 13059 | } |
| 13060 | else if (ket == OP_KETRMAX || (*cc == OP_ALT && ket != OP_KETRMIN)) |
| 13061 | { |
| 13062 | /* The STR_PTR must be released. */ |
| 13063 | stacksize++; |
| 13064 | } |
| 13065 | |
| 13066 | if (stacksize > 0) |
| 13067 | free_stack(common, stacksize); |
| 13068 | |
| 13069 | JUMPHERE(once); |
| 13070 | /* Restore previous private_data_ptr */ |
| 13071 | if (CURRENT_AS(bracket_backtrack)->u.framesize >= 0) |
| 13072 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, SLJIT_MEM1(STACK_TOP), STACK(-CURRENT_AS(bracket_backtrack)->u.framesize - 1)); |
| 13073 | else if (ket == OP_KETRMIN) |
| 13074 | { |
| 13075 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(1)); |
| 13076 | /* See the comment below. */ |
| 13077 | free_stack(common, 2); |
| 13078 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), private_data_ptr, TMP1, 0); |
| 13079 | } |
| 13080 | } |
| 13081 | |
| 13082 | if (repeat_type == OP_EXACT) |
| 13083 | { |
| 13084 | OP2(SLJIT_ADD, TMP1, 0, SLJIT_MEM1(SLJIT_SP), repeat_ptr, SLJIT_IMM, 1); |
| 13085 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), repeat_ptr, TMP1, 0); |
| 13086 | CMPTO(SLJIT_LESS_EQUAL, TMP1, 0, SLJIT_IMM, repeat_count, exact_label); |
| 13087 | } |
| 13088 | else if (ket == OP_KETRMAX) |
| 13089 | { |
| 13090 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 13091 | if (bra != OP_BRAZERO) |
| 13092 | free_stack(common, 1); |
| 13093 | |
| 13094 | CMPTO(SLJIT_NOT_EQUAL, STR_PTR, 0, SLJIT_IMM, 0, CURRENT_AS(bracket_backtrack)->recursive_matchingpath); |
| 13095 | if (bra == OP_BRAZERO) |
| 13096 | { |
| 13097 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(1)); |
| 13098 | JUMPTO(SLJIT_JUMP, CURRENT_AS(bracket_backtrack)->zero_matchingpath); |
| 13099 | JUMPHERE(brazero); |
| 13100 | free_stack(common, 1); |
| 13101 | } |
| 13102 | } |
| 13103 | else if (ket == OP_KETRMIN) |
| 13104 | { |
| 13105 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 13106 | |
| 13107 | /* OP_ONCE removes everything in case of a backtrack, so we don't |
| 13108 | need to explicitly release the STR_PTR. The extra release would |
| 13109 | affect badly the free_stack(2) above. */ |
| 13110 | if (opcode != OP_ONCE) |
| 13111 | free_stack(common, 1); |
| 13112 | CMPTO(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, 0, rmin_label); |
| 13113 | if (opcode == OP_ONCE) |
| 13114 | free_stack(common, bra == OP_BRAMINZERO ? 2 : 1); |
| 13115 | else if (bra == OP_BRAMINZERO) |
| 13116 | free_stack(common, 1); |
| 13117 | } |
| 13118 | else if (bra == OP_BRAZERO) |
| 13119 | { |
| 13120 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 13121 | JUMPTO(SLJIT_JUMP, CURRENT_AS(bracket_backtrack)->zero_matchingpath); |
| 13122 | JUMPHERE(brazero); |
| 13123 | } |
| 13124 | } |
| 13125 | |
| 13126 | static SLJIT_INLINE void compile_bracketpos_backtrackingpath(compiler_common *common, struct backtrack_common *current) |
| 13127 | { |
| 13128 | DEFINE_COMPILER; |
| 13129 | int offset; |
| 13130 | struct sljit_jump *jump; |
| 13131 | |
| 13132 | if (CURRENT_AS(bracketpos_backtrack)->framesize < 0) |
| 13133 | { |
| 13134 | if (*current->cc == OP_CBRAPOS || *current->cc == OP_SCBRAPOS) |
| 13135 | { |
| 13136 | offset = (GET2(current->cc, 1 + LINK_SIZE)) << 1; |
| 13137 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 13138 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(1)); |
| 13139 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset), TMP1, 0); |
| 13140 | if (common->capture_last_ptr != 0) |
| 13141 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(2)); |
| 13142 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(offset + 1), TMP2, 0); |
| 13143 | if (common->capture_last_ptr != 0) |
| 13144 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr, TMP1, 0); |
| 13145 | } |
| 13146 | set_jumps(current->topbacktracks, LABEL()); |
| 13147 | free_stack(common, CURRENT_AS(bracketpos_backtrack)->stacksize); |
| 13148 | return; |
| 13149 | } |
| 13150 | |
| 13151 | OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), CURRENT_AS(bracketpos_backtrack)->private_data_ptr); |
| 13152 | add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL)); |
| 13153 | OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, (CURRENT_AS(bracketpos_backtrack)->framesize - 1) * sizeof(sljit_sw)); |
| 13154 | |
| 13155 | if (current->topbacktracks) |
| 13156 | { |
| 13157 | jump = JUMP(SLJIT_JUMP); |
| 13158 | set_jumps(current->topbacktracks, LABEL()); |
| 13159 | /* Drop the stack frame. */ |
| 13160 | free_stack(common, CURRENT_AS(bracketpos_backtrack)->stacksize); |
| 13161 | JUMPHERE(jump); |
| 13162 | } |
| 13163 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), CURRENT_AS(bracketpos_backtrack)->private_data_ptr, SLJIT_MEM1(STACK_TOP), STACK(-CURRENT_AS(bracketpos_backtrack)->framesize - 1)); |
| 13164 | } |
| 13165 | |
| 13166 | static SLJIT_INLINE void compile_braminzero_backtrackingpath(compiler_common *common, struct backtrack_common *current) |
| 13167 | { |
| 13168 | assert_backtrack backtrack; |
| 13169 | |
| 13170 | current->top = NULL; |
| 13171 | current->topbacktracks = NULL; |
| 13172 | current->nextbacktracks = NULL; |
| 13173 | if (current->cc[1] > OP_ASSERTBACK_NOT) |
| 13174 | { |
| 13175 | /* Manual call of compile_bracket_matchingpath and compile_bracket_backtrackingpath. */ |
| 13176 | compile_bracket_matchingpath(common, current->cc, current); |
| 13177 | compile_bracket_backtrackingpath(common, current->top); |
| 13178 | } |
| 13179 | else |
| 13180 | { |
| 13181 | memset(&backtrack, 0, sizeof(backtrack)); |
| 13182 | backtrack.common.cc = current->cc; |
| 13183 | backtrack.matchingpath = CURRENT_AS(braminzero_backtrack)->matchingpath; |
| 13184 | /* Manual call of compile_assert_matchingpath. */ |
| 13185 | compile_assert_matchingpath(common, current->cc, &backtrack, FALSE); |
| 13186 | } |
| 13187 | SLJIT_ASSERT(!current->nextbacktracks && !current->topbacktracks); |
| 13188 | } |
| 13189 | |
| 13190 | static SLJIT_INLINE void compile_control_verb_backtrackingpath(compiler_common *common, struct backtrack_common *current) |
| 13191 | { |
| 13192 | DEFINE_COMPILER; |
| 13193 | PCRE2_UCHAR opcode = *current->cc; |
| 13194 | struct sljit_label *loop; |
| 13195 | struct sljit_jump *jump; |
| 13196 | |
| 13197 | if (opcode == OP_THEN || opcode == OP_THEN_ARG) |
| 13198 | { |
| 13199 | if (common->then_trap != NULL) |
| 13200 | { |
| 13201 | SLJIT_ASSERT(common->control_head_ptr != 0); |
| 13202 | |
| 13203 | OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr); |
| 13204 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, type_then_trap); |
| 13205 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, common->then_trap->start); |
| 13206 | jump = JUMP(SLJIT_JUMP); |
| 13207 | |
| 13208 | loop = LABEL(); |
| 13209 | OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 13210 | JUMPHERE(jump); |
| 13211 | CMPTO(SLJIT_NOT_EQUAL, SLJIT_MEM1(STACK_TOP), STACK(1), TMP1, 0, loop); |
| 13212 | CMPTO(SLJIT_NOT_EQUAL, SLJIT_MEM1(STACK_TOP), STACK(2), TMP2, 0, loop); |
| 13213 | add_jump(compiler, &common->then_trap->quit, JUMP(SLJIT_JUMP)); |
| 13214 | return; |
| 13215 | } |
| 13216 | else if (!common->local_quit_available && common->in_positive_assertion) |
| 13217 | { |
| 13218 | add_jump(compiler, &common->positive_assertion_quit, JUMP(SLJIT_JUMP)); |
| 13219 | return; |
| 13220 | } |
| 13221 | } |
| 13222 | |
| 13223 | if (common->local_quit_available) |
| 13224 | { |
| 13225 | /* Abort match with a fail. */ |
| 13226 | if (common->quit_label == NULL) |
| 13227 | add_jump(compiler, &common->quit, JUMP(SLJIT_JUMP)); |
| 13228 | else |
| 13229 | JUMPTO(SLJIT_JUMP, common->quit_label); |
| 13230 | return; |
| 13231 | } |
| 13232 | |
| 13233 | if (opcode == OP_SKIP_ARG) |
| 13234 | { |
| 13235 | SLJIT_ASSERT(common->control_head_ptr != 0 && TMP1 == SLJIT_R0 && STR_PTR == SLJIT_R1); |
| 13236 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr); |
| 13237 | OP1(SLJIT_MOV, SLJIT_R1, 0, SLJIT_IMM, (sljit_sw)(current->cc + 2)); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 13238 | sljit_emit_icall(compiler, SLJIT_CALL, SLJIT_ARGS2(W, W, W), SLJIT_IMM, SLJIT_FUNC_ADDR(do_search_mark)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 13239 | |
| 13240 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_R0, 0); |
| 13241 | add_jump(compiler, &common->reset_match, CMP(SLJIT_NOT_EQUAL, SLJIT_R0, 0, SLJIT_IMM, 0)); |
| 13242 | return; |
| 13243 | } |
| 13244 | |
| 13245 | if (opcode == OP_SKIP) |
| 13246 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 13247 | else |
| 13248 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_IMM, 0); |
| 13249 | add_jump(compiler, &common->reset_match, JUMP(SLJIT_JUMP)); |
| 13250 | } |
| 13251 | |
| 13252 | static SLJIT_INLINE void compile_then_trap_backtrackingpath(compiler_common *common, struct backtrack_common *current) |
| 13253 | { |
| 13254 | DEFINE_COMPILER; |
| 13255 | struct sljit_jump *jump; |
| 13256 | int size; |
| 13257 | |
| 13258 | if (CURRENT_AS(then_trap_backtrack)->then_trap) |
| 13259 | { |
| 13260 | common->then_trap = CURRENT_AS(then_trap_backtrack)->then_trap; |
| 13261 | return; |
| 13262 | } |
| 13263 | |
| 13264 | size = CURRENT_AS(then_trap_backtrack)->framesize; |
| 13265 | size = 3 + (size < 0 ? 0 : size); |
| 13266 | |
| 13267 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(size - 3)); |
| 13268 | free_stack(common, size); |
| 13269 | jump = JUMP(SLJIT_JUMP); |
| 13270 | |
| 13271 | set_jumps(CURRENT_AS(then_trap_backtrack)->quit, LABEL()); |
| 13272 | /* STACK_TOP is set by THEN. */ |
| 13273 | if (CURRENT_AS(then_trap_backtrack)->framesize >= 0) |
| 13274 | { |
| 13275 | add_jump(compiler, &common->revertframes, JUMP(SLJIT_FAST_CALL)); |
| 13276 | OP2(SLJIT_ADD, STACK_TOP, 0, STACK_TOP, 0, SLJIT_IMM, (CURRENT_AS(then_trap_backtrack)->framesize - 1) * sizeof(sljit_sw)); |
| 13277 | } |
| 13278 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 13279 | free_stack(common, 3); |
| 13280 | |
| 13281 | JUMPHERE(jump); |
| 13282 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, TMP1, 0); |
| 13283 | } |
| 13284 | |
| 13285 | static void compile_backtrackingpath(compiler_common *common, struct backtrack_common *current) |
| 13286 | { |
| 13287 | DEFINE_COMPILER; |
| 13288 | then_trap_backtrack *save_then_trap = common->then_trap; |
| 13289 | |
| 13290 | while (current) |
| 13291 | { |
| 13292 | if (current->nextbacktracks != NULL) |
| 13293 | set_jumps(current->nextbacktracks, LABEL()); |
| 13294 | switch(*current->cc) |
| 13295 | { |
| 13296 | case OP_SET_SOM: |
| 13297 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 13298 | free_stack(common, 1); |
| 13299 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(0), TMP1, 0); |
| 13300 | break; |
| 13301 | |
| 13302 | case OP_STAR: |
| 13303 | case OP_MINSTAR: |
| 13304 | case OP_PLUS: |
| 13305 | case OP_MINPLUS: |
| 13306 | case OP_QUERY: |
| 13307 | case OP_MINQUERY: |
| 13308 | case OP_UPTO: |
| 13309 | case OP_MINUPTO: |
| 13310 | case OP_EXACT: |
| 13311 | case OP_POSSTAR: |
| 13312 | case OP_POSPLUS: |
| 13313 | case OP_POSQUERY: |
| 13314 | case OP_POSUPTO: |
| 13315 | case OP_STARI: |
| 13316 | case OP_MINSTARI: |
| 13317 | case OP_PLUSI: |
| 13318 | case OP_MINPLUSI: |
| 13319 | case OP_QUERYI: |
| 13320 | case OP_MINQUERYI: |
| 13321 | case OP_UPTOI: |
| 13322 | case OP_MINUPTOI: |
| 13323 | case OP_EXACTI: |
| 13324 | case OP_POSSTARI: |
| 13325 | case OP_POSPLUSI: |
| 13326 | case OP_POSQUERYI: |
| 13327 | case OP_POSUPTOI: |
| 13328 | case OP_NOTSTAR: |
| 13329 | case OP_NOTMINSTAR: |
| 13330 | case OP_NOTPLUS: |
| 13331 | case OP_NOTMINPLUS: |
| 13332 | case OP_NOTQUERY: |
| 13333 | case OP_NOTMINQUERY: |
| 13334 | case OP_NOTUPTO: |
| 13335 | case OP_NOTMINUPTO: |
| 13336 | case OP_NOTEXACT: |
| 13337 | case OP_NOTPOSSTAR: |
| 13338 | case OP_NOTPOSPLUS: |
| 13339 | case OP_NOTPOSQUERY: |
| 13340 | case OP_NOTPOSUPTO: |
| 13341 | case OP_NOTSTARI: |
| 13342 | case OP_NOTMINSTARI: |
| 13343 | case OP_NOTPLUSI: |
| 13344 | case OP_NOTMINPLUSI: |
| 13345 | case OP_NOTQUERYI: |
| 13346 | case OP_NOTMINQUERYI: |
| 13347 | case OP_NOTUPTOI: |
| 13348 | case OP_NOTMINUPTOI: |
| 13349 | case OP_NOTEXACTI: |
| 13350 | case OP_NOTPOSSTARI: |
| 13351 | case OP_NOTPOSPLUSI: |
| 13352 | case OP_NOTPOSQUERYI: |
| 13353 | case OP_NOTPOSUPTOI: |
| 13354 | case OP_TYPESTAR: |
| 13355 | case OP_TYPEMINSTAR: |
| 13356 | case OP_TYPEPLUS: |
| 13357 | case OP_TYPEMINPLUS: |
| 13358 | case OP_TYPEQUERY: |
| 13359 | case OP_TYPEMINQUERY: |
| 13360 | case OP_TYPEUPTO: |
| 13361 | case OP_TYPEMINUPTO: |
| 13362 | case OP_TYPEEXACT: |
| 13363 | case OP_TYPEPOSSTAR: |
| 13364 | case OP_TYPEPOSPLUS: |
| 13365 | case OP_TYPEPOSQUERY: |
| 13366 | case OP_TYPEPOSUPTO: |
| 13367 | case OP_CLASS: |
| 13368 | case OP_NCLASS: |
| 13369 | #if defined SUPPORT_UNICODE || PCRE2_CODE_UNIT_WIDTH != 8 |
| 13370 | case OP_XCLASS: |
| 13371 | #endif |
| 13372 | compile_iterator_backtrackingpath(common, current); |
| 13373 | break; |
| 13374 | |
| 13375 | case OP_REF: |
| 13376 | case OP_REFI: |
| 13377 | case OP_DNREF: |
| 13378 | case OP_DNREFI: |
| 13379 | compile_ref_iterator_backtrackingpath(common, current); |
| 13380 | break; |
| 13381 | |
| 13382 | case OP_RECURSE: |
| 13383 | compile_recurse_backtrackingpath(common, current); |
| 13384 | break; |
| 13385 | |
| 13386 | case OP_ASSERT: |
| 13387 | case OP_ASSERT_NOT: |
| 13388 | case OP_ASSERTBACK: |
| 13389 | case OP_ASSERTBACK_NOT: |
| 13390 | compile_assert_backtrackingpath(common, current); |
| 13391 | break; |
| 13392 | |
| 13393 | case OP_ASSERT_NA: |
| 13394 | case OP_ASSERTBACK_NA: |
| 13395 | case OP_ONCE: |
| 13396 | case OP_SCRIPT_RUN: |
| 13397 | case OP_BRA: |
| 13398 | case OP_CBRA: |
| 13399 | case OP_COND: |
| 13400 | case OP_SBRA: |
| 13401 | case OP_SCBRA: |
| 13402 | case OP_SCOND: |
| 13403 | compile_bracket_backtrackingpath(common, current); |
| 13404 | break; |
| 13405 | |
| 13406 | case OP_BRAZERO: |
| 13407 | if (current->cc[1] > OP_ASSERTBACK_NOT) |
| 13408 | compile_bracket_backtrackingpath(common, current); |
| 13409 | else |
| 13410 | compile_assert_backtrackingpath(common, current); |
| 13411 | break; |
| 13412 | |
| 13413 | case OP_BRAPOS: |
| 13414 | case OP_CBRAPOS: |
| 13415 | case OP_SBRAPOS: |
| 13416 | case OP_SCBRAPOS: |
| 13417 | case OP_BRAPOSZERO: |
| 13418 | compile_bracketpos_backtrackingpath(common, current); |
| 13419 | break; |
| 13420 | |
| 13421 | case OP_BRAMINZERO: |
| 13422 | compile_braminzero_backtrackingpath(common, current); |
| 13423 | break; |
| 13424 | |
| 13425 | case OP_MARK: |
| 13426 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(common->has_skip_arg ? 4 : 0)); |
| 13427 | if (common->has_skip_arg) |
| 13428 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 13429 | free_stack(common, common->has_skip_arg ? 5 : 1); |
| 13430 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->mark_ptr, TMP1, 0); |
| 13431 | if (common->has_skip_arg) |
| 13432 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, TMP2, 0); |
| 13433 | break; |
| 13434 | |
| 13435 | case OP_THEN: |
| 13436 | case OP_THEN_ARG: |
| 13437 | case OP_PRUNE: |
| 13438 | case OP_PRUNE_ARG: |
| 13439 | case OP_SKIP: |
| 13440 | case OP_SKIP_ARG: |
| 13441 | compile_control_verb_backtrackingpath(common, current); |
| 13442 | break; |
| 13443 | |
| 13444 | case OP_COMMIT: |
| 13445 | case OP_COMMIT_ARG: |
| 13446 | if (!common->local_quit_available) |
| 13447 | OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, PCRE2_ERROR_NOMATCH); |
| 13448 | if (common->quit_label == NULL) |
| 13449 | add_jump(compiler, &common->quit, JUMP(SLJIT_JUMP)); |
| 13450 | else |
| 13451 | JUMPTO(SLJIT_JUMP, common->quit_label); |
| 13452 | break; |
| 13453 | |
| 13454 | case OP_CALLOUT: |
| 13455 | case OP_CALLOUT_STR: |
| 13456 | case OP_FAIL: |
| 13457 | case OP_ACCEPT: |
| 13458 | case OP_ASSERT_ACCEPT: |
| 13459 | set_jumps(current->topbacktracks, LABEL()); |
| 13460 | break; |
| 13461 | |
| 13462 | case OP_THEN_TRAP: |
| 13463 | /* A virtual opcode for then traps. */ |
| 13464 | compile_then_trap_backtrackingpath(common, current); |
| 13465 | break; |
| 13466 | |
| 13467 | default: |
| 13468 | SLJIT_UNREACHABLE(); |
| 13469 | break; |
| 13470 | } |
| 13471 | current = current->prev; |
| 13472 | } |
| 13473 | common->then_trap = save_then_trap; |
| 13474 | } |
| 13475 | |
| 13476 | static SLJIT_INLINE void compile_recurse(compiler_common *common) |
| 13477 | { |
| 13478 | DEFINE_COMPILER; |
| 13479 | PCRE2_SPTR cc = common->start + common->currententry->start; |
| 13480 | PCRE2_SPTR ccbegin = cc + 1 + LINK_SIZE + (*cc == OP_BRA ? 0 : IMM2_SIZE); |
| 13481 | PCRE2_SPTR ccend = bracketend(cc) - (1 + LINK_SIZE); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 13482 | uint32_t recurse_flags = 0; |
| 13483 | int private_data_size = get_recurse_data_length(common, ccbegin, ccend, &recurse_flags); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 13484 | int alt_count, alt_max, local_size; |
| 13485 | backtrack_common altbacktrack; |
| 13486 | jump_list *match = NULL; |
| 13487 | struct sljit_jump *next_alt = NULL; |
| 13488 | struct sljit_jump *accept_exit = NULL; |
| 13489 | struct sljit_label *quit; |
| 13490 | struct sljit_put_label *put_label = NULL; |
| 13491 | |
| 13492 | /* Recurse captures then. */ |
| 13493 | common->then_trap = NULL; |
| 13494 | |
| 13495 | SLJIT_ASSERT(*cc == OP_BRA || *cc == OP_CBRA || *cc == OP_CBRAPOS || *cc == OP_SCBRA || *cc == OP_SCBRAPOS); |
| 13496 | |
| 13497 | alt_max = no_alternatives(cc); |
| 13498 | alt_count = 0; |
| 13499 | |
| 13500 | /* Matching path. */ |
| 13501 | SLJIT_ASSERT(common->currententry->entry_label == NULL && common->recursive_head_ptr != 0); |
| 13502 | common->currententry->entry_label = LABEL(); |
| 13503 | set_jumps(common->currententry->entry_calls, common->currententry->entry_label); |
| 13504 | |
| 13505 | sljit_emit_fast_enter(compiler, TMP2, 0); |
| 13506 | count_match(common); |
| 13507 | |
| 13508 | local_size = (alt_max > 1) ? 2 : 1; |
| 13509 | |
| 13510 | /* (Reversed) stack layout: |
| 13511 | [private data][return address][optional: str ptr] ... [optional: alternative index][recursive_head_ptr] */ |
| 13512 | |
| 13513 | allocate_stack(common, private_data_size + local_size); |
| 13514 | /* Save return address. */ |
| 13515 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(local_size - 1), TMP2, 0); |
| 13516 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 13517 | copy_recurse_data(common, ccbegin, ccend, recurse_copy_from_global, local_size, private_data_size + local_size, recurse_flags); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 13518 | |
| 13519 | /* This variable is saved and restored all time when we enter or exit from a recursive context. */ |
| 13520 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->recursive_head_ptr, STACK_TOP, 0); |
| 13521 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 13522 | if (recurse_flags & recurse_flag_control_head_found) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 13523 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, SLJIT_IMM, 0); |
| 13524 | |
| 13525 | if (alt_max > 1) |
| 13526 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), STR_PTR, 0); |
| 13527 | |
| 13528 | memset(&altbacktrack, 0, sizeof(backtrack_common)); |
| 13529 | common->quit_label = NULL; |
| 13530 | common->accept_label = NULL; |
| 13531 | common->quit = NULL; |
| 13532 | common->accept = NULL; |
| 13533 | altbacktrack.cc = ccbegin; |
| 13534 | cc += GET(cc, 1); |
| 13535 | while (1) |
| 13536 | { |
| 13537 | altbacktrack.top = NULL; |
| 13538 | altbacktrack.topbacktracks = NULL; |
| 13539 | |
| 13540 | if (altbacktrack.cc != ccbegin) |
| 13541 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 13542 | |
| 13543 | compile_matchingpath(common, altbacktrack.cc, cc, &altbacktrack); |
| 13544 | if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler))) |
| 13545 | return; |
| 13546 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 13547 | allocate_stack(common, (alt_max > 1 || (recurse_flags & recurse_flag_accept_found)) ? 2 : 1); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 13548 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(SLJIT_SP), common->recursive_head_ptr); |
| 13549 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 13550 | if (alt_max > 1 || (recurse_flags & recurse_flag_accept_found)) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 13551 | { |
| 13552 | if (alt_max > 3) |
| 13553 | put_label = sljit_emit_put_label(compiler, SLJIT_MEM1(STACK_TOP), STACK(1)); |
| 13554 | else |
| 13555 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, alt_count); |
| 13556 | } |
| 13557 | |
| 13558 | add_jump(compiler, &match, JUMP(SLJIT_JUMP)); |
| 13559 | |
| 13560 | if (alt_count == 0) |
| 13561 | { |
| 13562 | /* Backtracking path entry. */ |
| 13563 | SLJIT_ASSERT(common->currententry->backtrack_label == NULL); |
| 13564 | common->currententry->backtrack_label = LABEL(); |
| 13565 | set_jumps(common->currententry->backtrack_calls, common->currententry->backtrack_label); |
| 13566 | |
| 13567 | sljit_emit_fast_enter(compiler, TMP1, 0); |
| 13568 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 13569 | if (recurse_flags & recurse_flag_accept_found) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 13570 | accept_exit = CMP(SLJIT_EQUAL, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, -1); |
| 13571 | |
| 13572 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(0)); |
| 13573 | /* Save return address. */ |
| 13574 | OP1(SLJIT_MOV, SLJIT_MEM1(TMP2), STACK(local_size - 1), TMP1, 0); |
| 13575 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 13576 | copy_recurse_data(common, ccbegin, ccend, recurse_swap_global, local_size, private_data_size + local_size, recurse_flags); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 13577 | |
| 13578 | if (alt_max > 1) |
| 13579 | { |
| 13580 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(STACK_TOP), STACK(1)); |
| 13581 | free_stack(common, 2); |
| 13582 | |
| 13583 | if (alt_max > 3) |
| 13584 | { |
| 13585 | sljit_emit_ijump(compiler, SLJIT_JUMP, TMP1, 0); |
| 13586 | sljit_set_put_label(put_label, LABEL()); |
| 13587 | sljit_emit_op0(compiler, SLJIT_ENDBR); |
| 13588 | } |
| 13589 | else |
| 13590 | next_alt = CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, 0); |
| 13591 | } |
| 13592 | else |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 13593 | free_stack(common, (recurse_flags & recurse_flag_accept_found) ? 2 : 1); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 13594 | } |
| 13595 | else if (alt_max > 3) |
| 13596 | { |
| 13597 | sljit_set_put_label(put_label, LABEL()); |
| 13598 | sljit_emit_op0(compiler, SLJIT_ENDBR); |
| 13599 | } |
| 13600 | else |
| 13601 | { |
| 13602 | JUMPHERE(next_alt); |
| 13603 | if (alt_count + 1 < alt_max) |
| 13604 | { |
| 13605 | SLJIT_ASSERT(alt_count == 1 && alt_max == 3); |
| 13606 | next_alt = CMP(SLJIT_NOT_EQUAL, TMP1, 0, SLJIT_IMM, 1); |
| 13607 | } |
| 13608 | } |
| 13609 | |
| 13610 | alt_count++; |
| 13611 | |
| 13612 | compile_backtrackingpath(common, altbacktrack.top); |
| 13613 | if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler))) |
| 13614 | return; |
| 13615 | set_jumps(altbacktrack.topbacktracks, LABEL()); |
| 13616 | |
| 13617 | if (*cc != OP_ALT) |
| 13618 | break; |
| 13619 | |
| 13620 | altbacktrack.cc = cc + 1 + LINK_SIZE; |
| 13621 | cc += GET(cc, 1); |
| 13622 | } |
| 13623 | |
| 13624 | /* No alternative is matched. */ |
| 13625 | |
| 13626 | quit = LABEL(); |
| 13627 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 13628 | copy_recurse_data(common, ccbegin, ccend, recurse_copy_private_to_global, local_size, private_data_size + local_size, recurse_flags); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 13629 | |
| 13630 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(local_size - 1)); |
| 13631 | free_stack(common, private_data_size + local_size); |
| 13632 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0); |
| 13633 | OP_SRC(SLJIT_FAST_RETURN, TMP2, 0); |
| 13634 | |
| 13635 | if (common->quit != NULL) |
| 13636 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 13637 | SLJIT_ASSERT(recurse_flags & recurse_flag_quit_found); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 13638 | |
| 13639 | set_jumps(common->quit, LABEL()); |
| 13640 | OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), common->recursive_head_ptr); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 13641 | copy_recurse_data(common, ccbegin, ccend, recurse_copy_shared_to_global, local_size, private_data_size + local_size, recurse_flags); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 13642 | JUMPTO(SLJIT_JUMP, quit); |
| 13643 | } |
| 13644 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 13645 | if (recurse_flags & recurse_flag_accept_found) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 13646 | { |
| 13647 | JUMPHERE(accept_exit); |
| 13648 | free_stack(common, 2); |
| 13649 | |
| 13650 | /* Save return address. */ |
| 13651 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(local_size - 1), TMP1, 0); |
| 13652 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 13653 | copy_recurse_data(common, ccbegin, ccend, recurse_copy_kept_shared_to_global, local_size, private_data_size + local_size, recurse_flags); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 13654 | |
| 13655 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(STACK_TOP), STACK(local_size - 1)); |
| 13656 | free_stack(common, private_data_size + local_size); |
| 13657 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 0); |
| 13658 | OP_SRC(SLJIT_FAST_RETURN, TMP2, 0); |
| 13659 | } |
| 13660 | |
| 13661 | if (common->accept != NULL) |
| 13662 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 13663 | SLJIT_ASSERT(recurse_flags & recurse_flag_accept_found); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 13664 | |
| 13665 | set_jumps(common->accept, LABEL()); |
| 13666 | |
| 13667 | OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(SLJIT_SP), common->recursive_head_ptr); |
| 13668 | OP1(SLJIT_MOV, TMP2, 0, STACK_TOP, 0); |
| 13669 | |
| 13670 | allocate_stack(common, 2); |
| 13671 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(1), SLJIT_IMM, -1); |
| 13672 | } |
| 13673 | |
| 13674 | set_jumps(match, LABEL()); |
| 13675 | |
| 13676 | OP1(SLJIT_MOV, SLJIT_MEM1(STACK_TOP), STACK(0), TMP2, 0); |
| 13677 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 13678 | copy_recurse_data(common, ccbegin, ccend, recurse_swap_global, local_size, private_data_size + local_size, recurse_flags); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 13679 | |
| 13680 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP2), STACK(local_size - 1)); |
| 13681 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, 1); |
| 13682 | OP_SRC(SLJIT_FAST_RETURN, TMP2, 0); |
| 13683 | } |
| 13684 | |
| 13685 | #undef COMPILE_BACKTRACKINGPATH |
| 13686 | #undef CURRENT_AS |
| 13687 | |
| 13688 | #define PUBLIC_JIT_COMPILE_CONFIGURATION_OPTIONS \ |
| 13689 | (PCRE2_JIT_INVALID_UTF) |
| 13690 | |
| 13691 | static int jit_compile(pcre2_code *code, sljit_u32 mode) |
| 13692 | { |
| 13693 | pcre2_real_code *re = (pcre2_real_code *)code; |
| 13694 | struct sljit_compiler *compiler; |
| 13695 | backtrack_common rootbacktrack; |
| 13696 | compiler_common common_data; |
| 13697 | compiler_common *common = &common_data; |
| 13698 | const sljit_u8 *tables = re->tables; |
| 13699 | void *allocator_data = &re->memctl; |
| 13700 | int private_data_size; |
| 13701 | PCRE2_SPTR ccend; |
| 13702 | executable_functions *functions; |
| 13703 | void *executable_func; |
| 13704 | sljit_uw executable_size; |
| 13705 | sljit_uw total_length; |
| 13706 | struct sljit_label *mainloop_label = NULL; |
| 13707 | struct sljit_label *continue_match_label; |
| 13708 | struct sljit_label *empty_match_found_label = NULL; |
| 13709 | struct sljit_label *empty_match_backtrack_label = NULL; |
| 13710 | struct sljit_label *reset_match_label; |
| 13711 | struct sljit_label *quit_label; |
| 13712 | struct sljit_jump *jump; |
| 13713 | struct sljit_jump *minlength_check_failed = NULL; |
| 13714 | struct sljit_jump *empty_match = NULL; |
| 13715 | struct sljit_jump *end_anchor_failed = NULL; |
| 13716 | jump_list *reqcu_not_found = NULL; |
| 13717 | |
| 13718 | SLJIT_ASSERT(tables); |
| 13719 | |
| 13720 | #if HAS_VIRTUAL_REGISTERS == 1 |
| 13721 | SLJIT_ASSERT(sljit_get_register_index(TMP3) < 0 && sljit_get_register_index(ARGUMENTS) < 0 && sljit_get_register_index(RETURN_ADDR) < 0); |
| 13722 | #elif HAS_VIRTUAL_REGISTERS == 0 |
| 13723 | SLJIT_ASSERT(sljit_get_register_index(TMP3) >= 0 && sljit_get_register_index(ARGUMENTS) >= 0 && sljit_get_register_index(RETURN_ADDR) >= 0); |
| 13724 | #else |
| 13725 | #error "Invalid value for HAS_VIRTUAL_REGISTERS" |
| 13726 | #endif |
| 13727 | |
| 13728 | memset(&rootbacktrack, 0, sizeof(backtrack_common)); |
| 13729 | memset(common, 0, sizeof(compiler_common)); |
| 13730 | common->re = re; |
| 13731 | common->name_table = (PCRE2_SPTR)((uint8_t *)re + sizeof(pcre2_real_code)); |
| 13732 | rootbacktrack.cc = common->name_table + re->name_count * re->name_entry_size; |
| 13733 | |
| 13734 | #ifdef SUPPORT_UNICODE |
| 13735 | common->invalid_utf = (mode & PCRE2_JIT_INVALID_UTF) != 0; |
| 13736 | #endif /* SUPPORT_UNICODE */ |
| 13737 | mode &= ~PUBLIC_JIT_COMPILE_CONFIGURATION_OPTIONS; |
| 13738 | |
| 13739 | common->start = rootbacktrack.cc; |
| 13740 | common->read_only_data_head = NULL; |
| 13741 | common->fcc = tables + fcc_offset; |
| 13742 | common->lcc = (sljit_sw)(tables + lcc_offset); |
| 13743 | common->mode = mode; |
| 13744 | common->might_be_empty = (re->minlength == 0) || (re->flags & PCRE2_MATCH_EMPTY); |
| 13745 | common->allow_empty_partial = (re->max_lookbehind > 0) || (re->flags & PCRE2_MATCH_EMPTY); |
| 13746 | common->nltype = NLTYPE_FIXED; |
| 13747 | switch(re->newline_convention) |
| 13748 | { |
| 13749 | case PCRE2_NEWLINE_CR: common->newline = CHAR_CR; break; |
| 13750 | case PCRE2_NEWLINE_LF: common->newline = CHAR_NL; break; |
| 13751 | case PCRE2_NEWLINE_CRLF: common->newline = (CHAR_CR << 8) | CHAR_NL; break; |
| 13752 | case PCRE2_NEWLINE_ANY: common->newline = (CHAR_CR << 8) | CHAR_NL; common->nltype = NLTYPE_ANY; break; |
| 13753 | case PCRE2_NEWLINE_ANYCRLF: common->newline = (CHAR_CR << 8) | CHAR_NL; common->nltype = NLTYPE_ANYCRLF; break; |
| 13754 | case PCRE2_NEWLINE_NUL: common->newline = CHAR_NUL; break; |
| 13755 | default: return PCRE2_ERROR_INTERNAL; |
| 13756 | } |
| 13757 | common->nlmax = READ_CHAR_MAX; |
| 13758 | common->nlmin = 0; |
| 13759 | if (re->bsr_convention == PCRE2_BSR_UNICODE) |
| 13760 | common->bsr_nltype = NLTYPE_ANY; |
| 13761 | else if (re->bsr_convention == PCRE2_BSR_ANYCRLF) |
| 13762 | common->bsr_nltype = NLTYPE_ANYCRLF; |
| 13763 | else |
| 13764 | { |
| 13765 | #ifdef BSR_ANYCRLF |
| 13766 | common->bsr_nltype = NLTYPE_ANYCRLF; |
| 13767 | #else |
| 13768 | common->bsr_nltype = NLTYPE_ANY; |
| 13769 | #endif |
| 13770 | } |
| 13771 | common->bsr_nlmax = READ_CHAR_MAX; |
| 13772 | common->bsr_nlmin = 0; |
| 13773 | common->endonly = (re->overall_options & PCRE2_DOLLAR_ENDONLY) != 0; |
| 13774 | common->ctypes = (sljit_sw)(tables + ctypes_offset); |
| 13775 | common->name_count = re->name_count; |
| 13776 | common->name_entry_size = re->name_entry_size; |
| 13777 | common->unset_backref = (re->overall_options & PCRE2_MATCH_UNSET_BACKREF) != 0; |
| 13778 | common->alt_circumflex = (re->overall_options & PCRE2_ALT_CIRCUMFLEX) != 0; |
| 13779 | #ifdef SUPPORT_UNICODE |
| 13780 | /* PCRE_UTF[16|32] have the same value as PCRE_UTF8. */ |
| 13781 | common->utf = (re->overall_options & PCRE2_UTF) != 0; |
| 13782 | common->ucp = (re->overall_options & PCRE2_UCP) != 0; |
| 13783 | if (common->utf) |
| 13784 | { |
| 13785 | if (common->nltype == NLTYPE_ANY) |
| 13786 | common->nlmax = 0x2029; |
| 13787 | else if (common->nltype == NLTYPE_ANYCRLF) |
| 13788 | common->nlmax = (CHAR_CR > CHAR_NL) ? CHAR_CR : CHAR_NL; |
| 13789 | else |
| 13790 | { |
| 13791 | /* We only care about the first newline character. */ |
| 13792 | common->nlmax = common->newline & 0xff; |
| 13793 | } |
| 13794 | |
| 13795 | if (common->nltype == NLTYPE_FIXED) |
| 13796 | common->nlmin = common->newline & 0xff; |
| 13797 | else |
| 13798 | common->nlmin = (CHAR_CR < CHAR_NL) ? CHAR_CR : CHAR_NL; |
| 13799 | |
| 13800 | if (common->bsr_nltype == NLTYPE_ANY) |
| 13801 | common->bsr_nlmax = 0x2029; |
| 13802 | else |
| 13803 | common->bsr_nlmax = (CHAR_CR > CHAR_NL) ? CHAR_CR : CHAR_NL; |
| 13804 | common->bsr_nlmin = (CHAR_CR < CHAR_NL) ? CHAR_CR : CHAR_NL; |
| 13805 | } |
| 13806 | else |
| 13807 | common->invalid_utf = FALSE; |
| 13808 | #endif /* SUPPORT_UNICODE */ |
| 13809 | ccend = bracketend(common->start); |
| 13810 | |
| 13811 | /* Calculate the local space size on the stack. */ |
| 13812 | common->ovector_start = LIMIT_MATCH + sizeof(sljit_sw); |
| 13813 | common->optimized_cbracket = (sljit_u8 *)SLJIT_MALLOC(re->top_bracket + 1, allocator_data); |
| 13814 | if (!common->optimized_cbracket) |
| 13815 | return PCRE2_ERROR_NOMEMORY; |
| 13816 | #if defined DEBUG_FORCE_UNOPTIMIZED_CBRAS && DEBUG_FORCE_UNOPTIMIZED_CBRAS == 1 |
| 13817 | memset(common->optimized_cbracket, 0, re->top_bracket + 1); |
| 13818 | #else |
| 13819 | memset(common->optimized_cbracket, 1, re->top_bracket + 1); |
| 13820 | #endif |
| 13821 | |
| 13822 | SLJIT_ASSERT(*common->start == OP_BRA && ccend[-(1 + LINK_SIZE)] == OP_KET); |
| 13823 | #if defined DEBUG_FORCE_UNOPTIMIZED_CBRAS && DEBUG_FORCE_UNOPTIMIZED_CBRAS == 2 |
| 13824 | common->capture_last_ptr = common->ovector_start; |
| 13825 | common->ovector_start += sizeof(sljit_sw); |
| 13826 | #endif |
| 13827 | if (!check_opcode_types(common, common->start, ccend)) |
| 13828 | { |
| 13829 | SLJIT_FREE(common->optimized_cbracket, allocator_data); |
| 13830 | return PCRE2_ERROR_NOMEMORY; |
| 13831 | } |
| 13832 | |
| 13833 | /* Checking flags and updating ovector_start. */ |
| 13834 | if (mode == PCRE2_JIT_COMPLETE && (re->flags & PCRE2_LASTSET) != 0 && (re->overall_options & PCRE2_NO_START_OPTIMIZE) == 0) |
| 13835 | { |
| 13836 | common->req_char_ptr = common->ovector_start; |
| 13837 | common->ovector_start += sizeof(sljit_sw); |
| 13838 | } |
| 13839 | if (mode != PCRE2_JIT_COMPLETE) |
| 13840 | { |
| 13841 | common->start_used_ptr = common->ovector_start; |
| 13842 | common->ovector_start += sizeof(sljit_sw); |
| 13843 | if (mode == PCRE2_JIT_PARTIAL_SOFT) |
| 13844 | { |
| 13845 | common->hit_start = common->ovector_start; |
| 13846 | common->ovector_start += sizeof(sljit_sw); |
| 13847 | } |
| 13848 | } |
| 13849 | if ((re->overall_options & (PCRE2_FIRSTLINE | PCRE2_USE_OFFSET_LIMIT)) != 0) |
| 13850 | { |
| 13851 | common->match_end_ptr = common->ovector_start; |
| 13852 | common->ovector_start += sizeof(sljit_sw); |
| 13853 | } |
| 13854 | #if defined DEBUG_FORCE_CONTROL_HEAD && DEBUG_FORCE_CONTROL_HEAD |
| 13855 | common->control_head_ptr = 1; |
| 13856 | #endif |
| 13857 | if (common->control_head_ptr != 0) |
| 13858 | { |
| 13859 | common->control_head_ptr = common->ovector_start; |
| 13860 | common->ovector_start += sizeof(sljit_sw); |
| 13861 | } |
| 13862 | if (common->has_set_som) |
| 13863 | { |
| 13864 | /* Saving the real start pointer is necessary. */ |
| 13865 | common->start_ptr = common->ovector_start; |
| 13866 | common->ovector_start += sizeof(sljit_sw); |
| 13867 | } |
| 13868 | |
| 13869 | /* Aligning ovector to even number of sljit words. */ |
| 13870 | if ((common->ovector_start & sizeof(sljit_sw)) != 0) |
| 13871 | common->ovector_start += sizeof(sljit_sw); |
| 13872 | |
| 13873 | if (common->start_ptr == 0) |
| 13874 | common->start_ptr = OVECTOR(0); |
| 13875 | |
| 13876 | /* Capturing brackets cannot be optimized if callouts are allowed. */ |
| 13877 | if (common->capture_last_ptr != 0) |
| 13878 | memset(common->optimized_cbracket, 0, re->top_bracket + 1); |
| 13879 | |
| 13880 | SLJIT_ASSERT(!(common->req_char_ptr != 0 && common->start_used_ptr != 0)); |
| 13881 | common->cbra_ptr = OVECTOR_START + (re->top_bracket + 1) * 2 * sizeof(sljit_sw); |
| 13882 | |
| 13883 | total_length = ccend - common->start; |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 13884 | common->private_data_ptrs = (sljit_s32*)SLJIT_MALLOC(total_length * (sizeof(sljit_s32) + (common->has_then ? 1 : 0)), allocator_data); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 13885 | if (!common->private_data_ptrs) |
| 13886 | { |
| 13887 | SLJIT_FREE(common->optimized_cbracket, allocator_data); |
| 13888 | return PCRE2_ERROR_NOMEMORY; |
| 13889 | } |
| 13890 | memset(common->private_data_ptrs, 0, total_length * sizeof(sljit_s32)); |
| 13891 | |
| 13892 | private_data_size = common->cbra_ptr + (re->top_bracket + 1) * sizeof(sljit_sw); |
| 13893 | |
| 13894 | if ((re->overall_options & PCRE2_ANCHORED) == 0 && (re->overall_options & PCRE2_NO_START_OPTIMIZE) == 0 && !common->has_skip_in_assert_back) |
| 13895 | detect_early_fail(common, common->start, &private_data_size, 0, 0, TRUE); |
| 13896 | |
| 13897 | set_private_data_ptrs(common, &private_data_size, ccend); |
| 13898 | |
| 13899 | SLJIT_ASSERT(common->early_fail_start_ptr <= common->early_fail_end_ptr); |
| 13900 | |
| 13901 | if (private_data_size > SLJIT_MAX_LOCAL_SIZE) |
| 13902 | { |
| 13903 | SLJIT_FREE(common->private_data_ptrs, allocator_data); |
| 13904 | SLJIT_FREE(common->optimized_cbracket, allocator_data); |
| 13905 | return PCRE2_ERROR_NOMEMORY; |
| 13906 | } |
| 13907 | |
| 13908 | if (common->has_then) |
| 13909 | { |
| 13910 | common->then_offsets = (sljit_u8 *)(common->private_data_ptrs + total_length); |
| 13911 | memset(common->then_offsets, 0, total_length); |
| 13912 | set_then_offsets(common, common->start, NULL); |
| 13913 | } |
| 13914 | |
| 13915 | compiler = sljit_create_compiler(allocator_data, NULL); |
| 13916 | if (!compiler) |
| 13917 | { |
| 13918 | SLJIT_FREE(common->optimized_cbracket, allocator_data); |
| 13919 | SLJIT_FREE(common->private_data_ptrs, allocator_data); |
| 13920 | return PCRE2_ERROR_NOMEMORY; |
| 13921 | } |
| 13922 | common->compiler = compiler; |
| 13923 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 13924 | /* Main pcre2_jit_exec entry. */ |
| 13925 | SLJIT_ASSERT((private_data_size & (sizeof(sljit_sw) - 1)) == 0); |
| 13926 | sljit_emit_enter(compiler, 0, SLJIT_ARGS1(W, W), 5, 5, 0, 0, private_data_size); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 13927 | |
| 13928 | /* Register init. */ |
| 13929 | reset_ovector(common, (re->top_bracket + 1) * 2); |
| 13930 | if (common->req_char_ptr != 0) |
| 13931 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->req_char_ptr, SLJIT_R0, 0); |
| 13932 | |
| 13933 | OP1(SLJIT_MOV, ARGUMENTS, 0, SLJIT_S0, 0); |
| 13934 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_S0, 0); |
| 13935 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, str)); |
| 13936 | OP1(SLJIT_MOV, STR_END, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, end)); |
| 13937 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, stack)); |
| 13938 | OP1(SLJIT_MOV_U32, TMP1, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, limit_match)); |
| 13939 | OP1(SLJIT_MOV, STACK_TOP, 0, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(struct sljit_stack, end)); |
| 13940 | OP1(SLJIT_MOV, STACK_LIMIT, 0, SLJIT_MEM1(TMP2), SLJIT_OFFSETOF(struct sljit_stack, start)); |
| 13941 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 1); |
| 13942 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LIMIT_MATCH, TMP1, 0); |
| 13943 | |
| 13944 | if (common->early_fail_start_ptr < common->early_fail_end_ptr) |
| 13945 | reset_early_fail(common); |
| 13946 | |
| 13947 | if (mode == PCRE2_JIT_PARTIAL_SOFT) |
| 13948 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->hit_start, SLJIT_IMM, -1); |
| 13949 | if (common->mark_ptr != 0) |
| 13950 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->mark_ptr, SLJIT_IMM, 0); |
| 13951 | if (common->control_head_ptr != 0) |
| 13952 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->control_head_ptr, SLJIT_IMM, 0); |
| 13953 | |
| 13954 | /* Main part of the matching */ |
| 13955 | if ((re->overall_options & PCRE2_ANCHORED) == 0) |
| 13956 | { |
| 13957 | mainloop_label = mainloop_entry(common); |
| 13958 | continue_match_label = LABEL(); |
| 13959 | /* Forward search if possible. */ |
| 13960 | if ((re->overall_options & PCRE2_NO_START_OPTIMIZE) == 0) |
| 13961 | { |
| 13962 | if (mode == PCRE2_JIT_COMPLETE && fast_forward_first_n_chars(common)) |
| 13963 | ; |
| 13964 | else if ((re->flags & PCRE2_FIRSTSET) != 0) |
| 13965 | fast_forward_first_char(common); |
| 13966 | else if ((re->flags & PCRE2_STARTLINE) != 0) |
| 13967 | fast_forward_newline(common); |
| 13968 | else if ((re->flags & PCRE2_FIRSTMAPSET) != 0) |
| 13969 | fast_forward_start_bits(common); |
| 13970 | } |
| 13971 | } |
| 13972 | else |
| 13973 | continue_match_label = LABEL(); |
| 13974 | |
| 13975 | if (mode == PCRE2_JIT_COMPLETE && re->minlength > 0 && (re->overall_options & PCRE2_NO_START_OPTIMIZE) == 0) |
| 13976 | { |
| 13977 | OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, PCRE2_ERROR_NOMATCH); |
| 13978 | OP2(SLJIT_ADD, TMP2, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(re->minlength)); |
| 13979 | minlength_check_failed = CMP(SLJIT_GREATER, TMP2, 0, STR_END, 0); |
| 13980 | } |
| 13981 | if (common->req_char_ptr != 0) |
| 13982 | reqcu_not_found = search_requested_char(common, (PCRE2_UCHAR)(re->last_codeunit), (re->flags & PCRE2_LASTCASELESS) != 0, (re->flags & PCRE2_FIRSTSET) != 0); |
| 13983 | |
| 13984 | /* Store the current STR_PTR in OVECTOR(0). */ |
| 13985 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), OVECTOR(0), STR_PTR, 0); |
| 13986 | /* Copy the limit of allowed recursions. */ |
| 13987 | OP1(SLJIT_MOV, COUNT_MATCH, 0, SLJIT_MEM1(SLJIT_SP), LIMIT_MATCH); |
| 13988 | if (common->capture_last_ptr != 0) |
| 13989 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->capture_last_ptr, SLJIT_IMM, 0); |
| 13990 | if (common->fast_forward_bc_ptr != NULL) |
| 13991 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), PRIVATE_DATA(common->fast_forward_bc_ptr + 1) >> 3, STR_PTR, 0); |
| 13992 | |
| 13993 | if (common->start_ptr != OVECTOR(0)) |
| 13994 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->start_ptr, STR_PTR, 0); |
| 13995 | |
| 13996 | /* Copy the beginning of the string. */ |
| 13997 | if (mode == PCRE2_JIT_PARTIAL_SOFT) |
| 13998 | { |
| 13999 | jump = CMP(SLJIT_NOT_EQUAL, SLJIT_MEM1(SLJIT_SP), common->hit_start, SLJIT_IMM, -1); |
| 14000 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0); |
| 14001 | JUMPHERE(jump); |
| 14002 | } |
| 14003 | else if (mode == PCRE2_JIT_PARTIAL_HARD) |
| 14004 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, STR_PTR, 0); |
| 14005 | |
| 14006 | compile_matchingpath(common, common->start, ccend, &rootbacktrack); |
| 14007 | if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler))) |
| 14008 | { |
| 14009 | sljit_free_compiler(compiler); |
| 14010 | SLJIT_FREE(common->optimized_cbracket, allocator_data); |
| 14011 | SLJIT_FREE(common->private_data_ptrs, allocator_data); |
| 14012 | PRIV(jit_free_rodata)(common->read_only_data_head, allocator_data); |
| 14013 | return PCRE2_ERROR_NOMEMORY; |
| 14014 | } |
| 14015 | |
| 14016 | if ((re->overall_options & PCRE2_ENDANCHORED) != 0) |
| 14017 | end_anchor_failed = CMP(SLJIT_NOT_EQUAL, STR_PTR, 0, STR_END, 0); |
| 14018 | |
| 14019 | if (common->might_be_empty) |
| 14020 | { |
| 14021 | empty_match = CMP(SLJIT_EQUAL, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), OVECTOR(0)); |
| 14022 | empty_match_found_label = LABEL(); |
| 14023 | } |
| 14024 | |
| 14025 | common->accept_label = LABEL(); |
| 14026 | if (common->accept != NULL) |
| 14027 | set_jumps(common->accept, common->accept_label); |
| 14028 | |
| 14029 | /* This means we have a match. Update the ovector. */ |
| 14030 | copy_ovector(common, re->top_bracket + 1); |
| 14031 | common->quit_label = common->abort_label = LABEL(); |
| 14032 | if (common->quit != NULL) |
| 14033 | set_jumps(common->quit, common->quit_label); |
| 14034 | if (common->abort != NULL) |
| 14035 | set_jumps(common->abort, common->abort_label); |
| 14036 | if (minlength_check_failed != NULL) |
| 14037 | SET_LABEL(minlength_check_failed, common->abort_label); |
| 14038 | |
| 14039 | sljit_emit_op0(compiler, SLJIT_SKIP_FRAMES_BEFORE_RETURN); |
| 14040 | sljit_emit_return(compiler, SLJIT_MOV, SLJIT_RETURN_REG, 0); |
| 14041 | |
| 14042 | if (common->failed_match != NULL) |
| 14043 | { |
| 14044 | SLJIT_ASSERT(common->mode == PCRE2_JIT_COMPLETE); |
| 14045 | set_jumps(common->failed_match, LABEL()); |
| 14046 | OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, PCRE2_ERROR_NOMATCH); |
| 14047 | JUMPTO(SLJIT_JUMP, common->abort_label); |
| 14048 | } |
| 14049 | |
| 14050 | if ((re->overall_options & PCRE2_ENDANCHORED) != 0) |
| 14051 | JUMPHERE(end_anchor_failed); |
| 14052 | |
| 14053 | if (mode != PCRE2_JIT_COMPLETE) |
| 14054 | { |
| 14055 | common->partialmatchlabel = LABEL(); |
| 14056 | set_jumps(common->partialmatch, common->partialmatchlabel); |
| 14057 | return_with_partial_match(common, common->quit_label); |
| 14058 | } |
| 14059 | |
| 14060 | if (common->might_be_empty) |
| 14061 | empty_match_backtrack_label = LABEL(); |
| 14062 | compile_backtrackingpath(common, rootbacktrack.top); |
| 14063 | if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler))) |
| 14064 | { |
| 14065 | sljit_free_compiler(compiler); |
| 14066 | SLJIT_FREE(common->optimized_cbracket, allocator_data); |
| 14067 | SLJIT_FREE(common->private_data_ptrs, allocator_data); |
| 14068 | PRIV(jit_free_rodata)(common->read_only_data_head, allocator_data); |
| 14069 | return PCRE2_ERROR_NOMEMORY; |
| 14070 | } |
| 14071 | |
| 14072 | SLJIT_ASSERT(rootbacktrack.prev == NULL); |
| 14073 | reset_match_label = LABEL(); |
| 14074 | |
| 14075 | if (mode == PCRE2_JIT_PARTIAL_SOFT) |
| 14076 | { |
| 14077 | /* Update hit_start only in the first time. */ |
| 14078 | jump = CMP(SLJIT_NOT_EQUAL, SLJIT_MEM1(SLJIT_SP), common->hit_start, SLJIT_IMM, 0); |
| 14079 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->start_ptr); |
| 14080 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->start_used_ptr, SLJIT_IMM, -1); |
| 14081 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), common->hit_start, TMP1, 0); |
| 14082 | JUMPHERE(jump); |
| 14083 | } |
| 14084 | |
| 14085 | /* Check we have remaining characters. */ |
| 14086 | if ((re->overall_options & PCRE2_ANCHORED) == 0 && common->match_end_ptr != 0) |
| 14087 | { |
| 14088 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->match_end_ptr); |
| 14089 | } |
| 14090 | |
| 14091 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), |
| 14092 | (common->fast_forward_bc_ptr != NULL) ? (PRIVATE_DATA(common->fast_forward_bc_ptr + 1) >> 3) : common->start_ptr); |
| 14093 | |
| 14094 | if ((re->overall_options & PCRE2_ANCHORED) == 0) |
| 14095 | { |
| 14096 | if (common->ff_newline_shortcut != NULL) |
| 14097 | { |
| 14098 | /* There cannot be more newlines if PCRE2_FIRSTLINE is set. */ |
| 14099 | if ((re->overall_options & PCRE2_FIRSTLINE) == 0) |
| 14100 | { |
| 14101 | if (common->match_end_ptr != 0) |
| 14102 | { |
| 14103 | OP1(SLJIT_MOV, TMP3, 0, STR_END, 0); |
| 14104 | OP1(SLJIT_MOV, STR_END, 0, TMP1, 0); |
| 14105 | CMPTO(SLJIT_LESS, STR_PTR, 0, TMP1, 0, common->ff_newline_shortcut); |
| 14106 | OP1(SLJIT_MOV, STR_END, 0, TMP3, 0); |
| 14107 | } |
| 14108 | else |
| 14109 | CMPTO(SLJIT_LESS, STR_PTR, 0, STR_END, 0, common->ff_newline_shortcut); |
| 14110 | } |
| 14111 | } |
| 14112 | else |
| 14113 | CMPTO(SLJIT_LESS, STR_PTR, 0, (common->match_end_ptr == 0) ? STR_END : TMP1, 0, mainloop_label); |
| 14114 | } |
| 14115 | |
| 14116 | /* No more remaining characters. */ |
| 14117 | if (reqcu_not_found != NULL) |
| 14118 | set_jumps(reqcu_not_found, LABEL()); |
| 14119 | |
| 14120 | if (mode == PCRE2_JIT_PARTIAL_SOFT) |
| 14121 | CMPTO(SLJIT_NOT_EQUAL, SLJIT_MEM1(SLJIT_SP), common->hit_start, SLJIT_IMM, -1, common->partialmatchlabel); |
| 14122 | |
| 14123 | OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, PCRE2_ERROR_NOMATCH); |
| 14124 | JUMPTO(SLJIT_JUMP, common->quit_label); |
| 14125 | |
| 14126 | flush_stubs(common); |
| 14127 | |
| 14128 | if (common->might_be_empty) |
| 14129 | { |
| 14130 | JUMPHERE(empty_match); |
| 14131 | OP1(SLJIT_MOV, TMP1, 0, ARGUMENTS, 0); |
| 14132 | OP1(SLJIT_MOV_U32, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, options)); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 14133 | OP2U(SLJIT_AND | SLJIT_SET_Z, TMP2, 0, SLJIT_IMM, PCRE2_NOTEMPTY); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 14134 | JUMPTO(SLJIT_NOT_ZERO, empty_match_backtrack_label); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 14135 | OP2U(SLJIT_AND | SLJIT_SET_Z, TMP2, 0, SLJIT_IMM, PCRE2_NOTEMPTY_ATSTART); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 14136 | JUMPTO(SLJIT_ZERO, empty_match_found_label); |
| 14137 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_MEM1(TMP1), SLJIT_OFFSETOF(jit_arguments, str)); |
| 14138 | CMPTO(SLJIT_NOT_EQUAL, TMP2, 0, STR_PTR, 0, empty_match_found_label); |
| 14139 | JUMPTO(SLJIT_JUMP, empty_match_backtrack_label); |
| 14140 | } |
| 14141 | |
| 14142 | common->fast_forward_bc_ptr = NULL; |
| 14143 | common->early_fail_start_ptr = 0; |
| 14144 | common->early_fail_end_ptr = 0; |
| 14145 | common->currententry = common->entries; |
| 14146 | common->local_quit_available = TRUE; |
| 14147 | quit_label = common->quit_label; |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 14148 | if (common->currententry != NULL) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 14149 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 14150 | /* A free bit for each private data. */ |
| 14151 | common->recurse_bitset_size = ((private_data_size / (int)sizeof(sljit_sw)) + 7) >> 3; |
| 14152 | SLJIT_ASSERT(common->recurse_bitset_size > 0); |
| 14153 | common->recurse_bitset = (sljit_u8*)SLJIT_MALLOC(common->recurse_bitset_size, allocator_data);; |
| 14154 | |
| 14155 | if (common->recurse_bitset != NULL) |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 14156 | { |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 14157 | do |
| 14158 | { |
| 14159 | /* Might add new entries. */ |
| 14160 | compile_recurse(common); |
| 14161 | if (SLJIT_UNLIKELY(sljit_get_compiler_error(compiler))) |
| 14162 | break; |
| 14163 | flush_stubs(common); |
| 14164 | common->currententry = common->currententry->next; |
| 14165 | } |
| 14166 | while (common->currententry != NULL); |
| 14167 | |
| 14168 | SLJIT_FREE(common->recurse_bitset, allocator_data); |
| 14169 | } |
| 14170 | |
| 14171 | if (common->currententry != NULL) |
| 14172 | { |
| 14173 | /* The common->recurse_bitset has been freed. */ |
| 14174 | SLJIT_ASSERT(sljit_get_compiler_error(compiler) || common->recurse_bitset == NULL); |
| 14175 | |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 14176 | sljit_free_compiler(compiler); |
| 14177 | SLJIT_FREE(common->optimized_cbracket, allocator_data); |
| 14178 | SLJIT_FREE(common->private_data_ptrs, allocator_data); |
| 14179 | PRIV(jit_free_rodata)(common->read_only_data_head, allocator_data); |
| 14180 | return PCRE2_ERROR_NOMEMORY; |
| 14181 | } |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 14182 | } |
| 14183 | common->local_quit_available = FALSE; |
| 14184 | common->quit_label = quit_label; |
| 14185 | |
| 14186 | /* Allocating stack, returns with PCRE_ERROR_JIT_STACKLIMIT if fails. */ |
| 14187 | /* This is a (really) rare case. */ |
| 14188 | set_jumps(common->stackalloc, LABEL()); |
| 14189 | /* RETURN_ADDR is not a saved register. */ |
| 14190 | sljit_emit_fast_enter(compiler, SLJIT_MEM1(SLJIT_SP), LOCALS0); |
| 14191 | |
| 14192 | SLJIT_ASSERT(TMP1 == SLJIT_R0 && STR_PTR == SLJIT_R1); |
| 14193 | |
| 14194 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS1, STR_PTR, 0); |
| 14195 | OP1(SLJIT_MOV, SLJIT_R0, 0, ARGUMENTS, 0); |
| 14196 | OP2(SLJIT_SUB, SLJIT_R1, 0, STACK_LIMIT, 0, SLJIT_IMM, STACK_GROWTH_RATE); |
| 14197 | OP1(SLJIT_MOV, SLJIT_R0, 0, SLJIT_MEM1(SLJIT_R0), SLJIT_OFFSETOF(jit_arguments, stack)); |
| 14198 | OP1(SLJIT_MOV, STACK_LIMIT, 0, TMP2, 0); |
| 14199 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame^] | 14200 | sljit_emit_icall(compiler, SLJIT_CALL, SLJIT_ARGS2(W, W, W), SLJIT_IMM, SLJIT_FUNC_ADDR(sljit_stack_resize)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 14201 | |
| 14202 | jump = CMP(SLJIT_EQUAL, SLJIT_RETURN_REG, 0, SLJIT_IMM, 0); |
| 14203 | OP1(SLJIT_MOV, TMP2, 0, STACK_LIMIT, 0); |
| 14204 | OP1(SLJIT_MOV, STACK_LIMIT, 0, SLJIT_RETURN_REG, 0); |
| 14205 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), LOCALS0); |
| 14206 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), LOCALS1); |
| 14207 | OP_SRC(SLJIT_FAST_RETURN, TMP1, 0); |
| 14208 | |
| 14209 | /* Allocation failed. */ |
| 14210 | JUMPHERE(jump); |
| 14211 | /* We break the return address cache here, but this is a really rare case. */ |
| 14212 | OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, PCRE2_ERROR_JIT_STACKLIMIT); |
| 14213 | JUMPTO(SLJIT_JUMP, common->quit_label); |
| 14214 | |
| 14215 | /* Call limit reached. */ |
| 14216 | set_jumps(common->calllimit, LABEL()); |
| 14217 | OP1(SLJIT_MOV, SLJIT_RETURN_REG, 0, SLJIT_IMM, PCRE2_ERROR_MATCHLIMIT); |
| 14218 | JUMPTO(SLJIT_JUMP, common->quit_label); |
| 14219 | |
| 14220 | if (common->revertframes != NULL) |
| 14221 | { |
| 14222 | set_jumps(common->revertframes, LABEL()); |
| 14223 | do_revertframes(common); |
| 14224 | } |
| 14225 | if (common->wordboundary != NULL) |
| 14226 | { |
| 14227 | set_jumps(common->wordboundary, LABEL()); |
| 14228 | check_wordboundary(common); |
| 14229 | } |
| 14230 | if (common->anynewline != NULL) |
| 14231 | { |
| 14232 | set_jumps(common->anynewline, LABEL()); |
| 14233 | check_anynewline(common); |
| 14234 | } |
| 14235 | if (common->hspace != NULL) |
| 14236 | { |
| 14237 | set_jumps(common->hspace, LABEL()); |
| 14238 | check_hspace(common); |
| 14239 | } |
| 14240 | if (common->vspace != NULL) |
| 14241 | { |
| 14242 | set_jumps(common->vspace, LABEL()); |
| 14243 | check_vspace(common); |
| 14244 | } |
| 14245 | if (common->casefulcmp != NULL) |
| 14246 | { |
| 14247 | set_jumps(common->casefulcmp, LABEL()); |
| 14248 | do_casefulcmp(common); |
| 14249 | } |
| 14250 | if (common->caselesscmp != NULL) |
| 14251 | { |
| 14252 | set_jumps(common->caselesscmp, LABEL()); |
| 14253 | do_caselesscmp(common); |
| 14254 | } |
| 14255 | if (common->reset_match != NULL) |
| 14256 | { |
| 14257 | set_jumps(common->reset_match, LABEL()); |
| 14258 | do_reset_match(common, (re->top_bracket + 1) * 2); |
| 14259 | CMPTO(SLJIT_GREATER, STR_PTR, 0, TMP1, 0, continue_match_label); |
| 14260 | OP1(SLJIT_MOV, STR_PTR, 0, TMP1, 0); |
| 14261 | JUMPTO(SLJIT_JUMP, reset_match_label); |
| 14262 | } |
| 14263 | #ifdef SUPPORT_UNICODE |
| 14264 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 14265 | if (common->utfreadchar != NULL) |
| 14266 | { |
| 14267 | set_jumps(common->utfreadchar, LABEL()); |
| 14268 | do_utfreadchar(common); |
| 14269 | } |
| 14270 | if (common->utfreadtype8 != NULL) |
| 14271 | { |
| 14272 | set_jumps(common->utfreadtype8, LABEL()); |
| 14273 | do_utfreadtype8(common); |
| 14274 | } |
| 14275 | if (common->utfpeakcharback != NULL) |
| 14276 | { |
| 14277 | set_jumps(common->utfpeakcharback, LABEL()); |
| 14278 | do_utfpeakcharback(common); |
| 14279 | } |
| 14280 | #endif /* PCRE2_CODE_UNIT_WIDTH == 8 */ |
| 14281 | #if PCRE2_CODE_UNIT_WIDTH == 8 || PCRE2_CODE_UNIT_WIDTH == 16 |
| 14282 | if (common->utfreadchar_invalid != NULL) |
| 14283 | { |
| 14284 | set_jumps(common->utfreadchar_invalid, LABEL()); |
| 14285 | do_utfreadchar_invalid(common); |
| 14286 | } |
| 14287 | if (common->utfreadnewline_invalid != NULL) |
| 14288 | { |
| 14289 | set_jumps(common->utfreadnewline_invalid, LABEL()); |
| 14290 | do_utfreadnewline_invalid(common); |
| 14291 | } |
| 14292 | if (common->utfmoveback_invalid) |
| 14293 | { |
| 14294 | set_jumps(common->utfmoveback_invalid, LABEL()); |
| 14295 | do_utfmoveback_invalid(common); |
| 14296 | } |
| 14297 | if (common->utfpeakcharback_invalid) |
| 14298 | { |
| 14299 | set_jumps(common->utfpeakcharback_invalid, LABEL()); |
| 14300 | do_utfpeakcharback_invalid(common); |
| 14301 | } |
| 14302 | #endif /* PCRE2_CODE_UNIT_WIDTH == 8 || PCRE2_CODE_UNIT_WIDTH == 16 */ |
| 14303 | if (common->getucd != NULL) |
| 14304 | { |
| 14305 | set_jumps(common->getucd, LABEL()); |
| 14306 | do_getucd(common); |
| 14307 | } |
| 14308 | if (common->getucdtype != NULL) |
| 14309 | { |
| 14310 | set_jumps(common->getucdtype, LABEL()); |
| 14311 | do_getucdtype(common); |
| 14312 | } |
| 14313 | #endif /* SUPPORT_UNICODE */ |
| 14314 | |
| 14315 | SLJIT_FREE(common->optimized_cbracket, allocator_data); |
| 14316 | SLJIT_FREE(common->private_data_ptrs, allocator_data); |
| 14317 | |
| 14318 | executable_func = sljit_generate_code(compiler); |
| 14319 | executable_size = sljit_get_generated_code_size(compiler); |
| 14320 | sljit_free_compiler(compiler); |
| 14321 | |
| 14322 | if (executable_func == NULL) |
| 14323 | { |
| 14324 | PRIV(jit_free_rodata)(common->read_only_data_head, allocator_data); |
| 14325 | return PCRE2_ERROR_NOMEMORY; |
| 14326 | } |
| 14327 | |
| 14328 | /* Reuse the function descriptor if possible. */ |
| 14329 | if (re->executable_jit != NULL) |
| 14330 | functions = (executable_functions *)re->executable_jit; |
| 14331 | else |
| 14332 | { |
| 14333 | functions = SLJIT_MALLOC(sizeof(executable_functions), allocator_data); |
| 14334 | if (functions == NULL) |
| 14335 | { |
| 14336 | /* This case is highly unlikely since we just recently |
| 14337 | freed a lot of memory. Not impossible though. */ |
| 14338 | sljit_free_code(executable_func, NULL); |
| 14339 | PRIV(jit_free_rodata)(common->read_only_data_head, allocator_data); |
| 14340 | return PCRE2_ERROR_NOMEMORY; |
| 14341 | } |
| 14342 | memset(functions, 0, sizeof(executable_functions)); |
| 14343 | functions->top_bracket = re->top_bracket + 1; |
| 14344 | functions->limit_match = re->limit_match; |
| 14345 | re->executable_jit = functions; |
| 14346 | } |
| 14347 | |
| 14348 | /* Turn mode into an index. */ |
| 14349 | if (mode == PCRE2_JIT_COMPLETE) |
| 14350 | mode = 0; |
| 14351 | else |
| 14352 | mode = (mode == PCRE2_JIT_PARTIAL_SOFT) ? 1 : 2; |
| 14353 | |
| 14354 | SLJIT_ASSERT(mode < JIT_NUMBER_OF_COMPILE_MODES); |
| 14355 | functions->executable_funcs[mode] = executable_func; |
| 14356 | functions->read_only_data_heads[mode] = common->read_only_data_head; |
| 14357 | functions->executable_sizes[mode] = executable_size; |
| 14358 | return 0; |
| 14359 | } |
| 14360 | |
| 14361 | #endif |
| 14362 | |
| 14363 | /************************************************* |
| 14364 | * JIT compile a Regular Expression * |
| 14365 | *************************************************/ |
| 14366 | |
| 14367 | /* This function used JIT to convert a previously-compiled pattern into machine |
| 14368 | code. |
| 14369 | |
| 14370 | Arguments: |
| 14371 | code a compiled pattern |
| 14372 | options JIT option bits |
| 14373 | |
| 14374 | Returns: 0: success or (*NOJIT) was used |
| 14375 | <0: an error code |
| 14376 | */ |
| 14377 | |
| 14378 | #define PUBLIC_JIT_COMPILE_OPTIONS \ |
| 14379 | (PCRE2_JIT_COMPLETE|PCRE2_JIT_PARTIAL_SOFT|PCRE2_JIT_PARTIAL_HARD|PCRE2_JIT_INVALID_UTF) |
| 14380 | |
| 14381 | PCRE2_EXP_DEFN int PCRE2_CALL_CONVENTION |
| 14382 | pcre2_jit_compile(pcre2_code *code, uint32_t options) |
| 14383 | { |
| 14384 | pcre2_real_code *re = (pcre2_real_code *)code; |
Elliott Hughes | 16619d6 | 2021-10-29 12:10:38 -0700 | [diff] [blame] | 14385 | #ifdef SUPPORT_JIT |
| 14386 | executable_functions *functions; |
| 14387 | static int executable_allocator_is_working = 0; |
| 14388 | #endif |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 14389 | |
| 14390 | if (code == NULL) |
| 14391 | return PCRE2_ERROR_NULL; |
| 14392 | |
| 14393 | if ((options & ~PUBLIC_JIT_COMPILE_OPTIONS) != 0) |
| 14394 | return PCRE2_ERROR_JIT_BADOPTION; |
| 14395 | |
| 14396 | /* Support for invalid UTF was first introduced in JIT, with the option |
| 14397 | PCRE2_JIT_INVALID_UTF. Later, support was added to the interpreter, and the |
| 14398 | compile-time option PCRE2_MATCH_INVALID_UTF was created. This is now the |
| 14399 | preferred feature, with the earlier option deprecated. However, for backward |
| 14400 | compatibility, if the earlier option is set, it forces the new option so that |
| 14401 | if JIT matching falls back to the interpreter, there is still support for |
| 14402 | invalid UTF. However, if this function has already been successfully called |
| 14403 | without PCRE2_JIT_INVALID_UTF and without PCRE2_MATCH_INVALID_UTF (meaning that |
| 14404 | non-invalid-supporting JIT code was compiled), give an error. |
| 14405 | |
| 14406 | If in the future support for PCRE2_JIT_INVALID_UTF is withdrawn, the following |
| 14407 | actions are needed: |
| 14408 | |
| 14409 | 1. Remove the definition from pcre2.h.in and from the list in |
| 14410 | PUBLIC_JIT_COMPILE_OPTIONS above. |
| 14411 | |
| 14412 | 2. Replace PCRE2_JIT_INVALID_UTF with a local flag in this module. |
| 14413 | |
| 14414 | 3. Replace PCRE2_JIT_INVALID_UTF in pcre2_jit_test.c. |
| 14415 | |
| 14416 | 4. Delete the following short block of code. The setting of "re" and |
| 14417 | "functions" can be moved into the JIT-only block below, but if that is |
| 14418 | done, (void)re and (void)functions will be needed in the non-JIT case, to |
| 14419 | avoid compiler warnings. |
| 14420 | */ |
| 14421 | |
| 14422 | #ifdef SUPPORT_JIT |
Elliott Hughes | 16619d6 | 2021-10-29 12:10:38 -0700 | [diff] [blame] | 14423 | functions = (executable_functions *)re->executable_jit; |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 14424 | #endif |
| 14425 | |
| 14426 | if ((options & PCRE2_JIT_INVALID_UTF) != 0) |
| 14427 | { |
| 14428 | if ((re->overall_options & PCRE2_MATCH_INVALID_UTF) == 0) |
| 14429 | { |
| 14430 | #ifdef SUPPORT_JIT |
| 14431 | if (functions != NULL) return PCRE2_ERROR_JIT_BADOPTION; |
| 14432 | #endif |
| 14433 | re->overall_options |= PCRE2_MATCH_INVALID_UTF; |
| 14434 | } |
| 14435 | } |
| 14436 | |
| 14437 | /* The above tests are run with and without JIT support. This means that |
| 14438 | PCRE2_JIT_INVALID_UTF propagates back into the regex options (ensuring |
| 14439 | interpreter support) even in the absence of JIT. But now, if there is no JIT |
| 14440 | support, give an error return. */ |
| 14441 | |
| 14442 | #ifndef SUPPORT_JIT |
| 14443 | return PCRE2_ERROR_JIT_BADOPTION; |
| 14444 | #else /* SUPPORT_JIT */ |
| 14445 | |
| 14446 | /* There is JIT support. Do the necessary. */ |
| 14447 | |
| 14448 | if ((re->flags & PCRE2_NOJIT) != 0) return 0; |
| 14449 | |
| 14450 | if (executable_allocator_is_working == 0) |
| 14451 | { |
| 14452 | /* Checks whether the executable allocator is working. This check |
| 14453 | might run multiple times in multi-threaded environments, but the |
| 14454 | result should not be affected by it. */ |
| 14455 | void *ptr = SLJIT_MALLOC_EXEC(32, NULL); |
| 14456 | |
| 14457 | executable_allocator_is_working = -1; |
| 14458 | |
| 14459 | if (ptr != NULL) |
| 14460 | { |
| 14461 | SLJIT_FREE_EXEC(((sljit_u8*)(ptr)) + SLJIT_EXEC_OFFSET(ptr), NULL); |
| 14462 | executable_allocator_is_working = 1; |
| 14463 | } |
| 14464 | } |
| 14465 | |
| 14466 | if (executable_allocator_is_working < 0) |
| 14467 | return PCRE2_ERROR_NOMEMORY; |
| 14468 | |
| 14469 | if ((re->overall_options & PCRE2_MATCH_INVALID_UTF) != 0) |
| 14470 | options |= PCRE2_JIT_INVALID_UTF; |
| 14471 | |
| 14472 | if ((options & PCRE2_JIT_COMPLETE) != 0 && (functions == NULL |
| 14473 | || functions->executable_funcs[0] == NULL)) { |
| 14474 | uint32_t excluded_options = (PCRE2_JIT_PARTIAL_SOFT | PCRE2_JIT_PARTIAL_HARD); |
| 14475 | int result = jit_compile(code, options & ~excluded_options); |
| 14476 | if (result != 0) |
| 14477 | return result; |
| 14478 | } |
| 14479 | |
| 14480 | if ((options & PCRE2_JIT_PARTIAL_SOFT) != 0 && (functions == NULL |
| 14481 | || functions->executable_funcs[1] == NULL)) { |
| 14482 | uint32_t excluded_options = (PCRE2_JIT_COMPLETE | PCRE2_JIT_PARTIAL_HARD); |
| 14483 | int result = jit_compile(code, options & ~excluded_options); |
| 14484 | if (result != 0) |
| 14485 | return result; |
| 14486 | } |
| 14487 | |
| 14488 | if ((options & PCRE2_JIT_PARTIAL_HARD) != 0 && (functions == NULL |
| 14489 | || functions->executable_funcs[2] == NULL)) { |
| 14490 | uint32_t excluded_options = (PCRE2_JIT_COMPLETE | PCRE2_JIT_PARTIAL_SOFT); |
| 14491 | int result = jit_compile(code, options & ~excluded_options); |
| 14492 | if (result != 0) |
| 14493 | return result; |
| 14494 | } |
| 14495 | |
| 14496 | return 0; |
| 14497 | |
| 14498 | #endif /* SUPPORT_JIT */ |
| 14499 | } |
| 14500 | |
| 14501 | /* JIT compiler uses an all-in-one approach. This improves security, |
| 14502 | since the code generator functions are not exported. */ |
| 14503 | |
| 14504 | #define INCLUDED_FROM_PCRE2_JIT_COMPILE |
| 14505 | |
| 14506 | #include "pcre2_jit_match.c" |
| 14507 | #include "pcre2_jit_misc.c" |
| 14508 | |
| 14509 | /* End of pcre2_jit_compile.c */ |