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 |
| 11 | New API code Copyright (c) 2016-2019 University of Cambridge |
| 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 | #if !(defined SUPPORT_VALGRIND) |
| 43 | |
| 44 | #if ((defined SLJIT_CONFIG_X86 && SLJIT_CONFIG_X86) \ |
| 45 | || (defined SLJIT_CONFIG_S390X && SLJIT_CONFIG_S390X)) |
| 46 | |
| 47 | typedef enum { |
| 48 | vector_compare_match1, |
| 49 | vector_compare_match1i, |
| 50 | vector_compare_match2, |
| 51 | } vector_compare_type; |
| 52 | |
| 53 | static SLJIT_INLINE sljit_u32 max_fast_forward_char_pair_offset(void) |
| 54 | { |
| 55 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 56 | return 15; |
| 57 | #elif PCRE2_CODE_UNIT_WIDTH == 16 |
| 58 | return 7; |
| 59 | #elif PCRE2_CODE_UNIT_WIDTH == 32 |
| 60 | return 3; |
| 61 | #else |
| 62 | #error "Unsupported unit width" |
| 63 | #endif |
| 64 | } |
| 65 | |
| 66 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 67 | static struct sljit_jump *jump_if_utf_char_start(struct sljit_compiler *compiler, sljit_s32 reg) |
| 68 | { |
| 69 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 70 | OP2(SLJIT_AND, reg, 0, reg, 0, SLJIT_IMM, 0xc0); |
| 71 | return CMP(SLJIT_NOT_EQUAL, reg, 0, SLJIT_IMM, 0x80); |
| 72 | #elif PCRE2_CODE_UNIT_WIDTH == 16 |
| 73 | OP2(SLJIT_AND, reg, 0, reg, 0, SLJIT_IMM, 0xfc00); |
| 74 | return CMP(SLJIT_NOT_EQUAL, reg, 0, SLJIT_IMM, 0xdc00); |
| 75 | #else |
| 76 | #error "Unknown code width" |
| 77 | #endif |
| 78 | } |
| 79 | #endif |
| 80 | |
| 81 | #endif /* SLJIT_CONFIG_X86 || SLJIT_CONFIG_S390X */ |
| 82 | |
| 83 | #if (defined SLJIT_CONFIG_X86 && SLJIT_CONFIG_X86) |
| 84 | |
| 85 | static sljit_s32 character_to_int32(PCRE2_UCHAR chr) |
| 86 | { |
| 87 | sljit_u32 value = chr; |
| 88 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 89 | #define SSE2_COMPARE_TYPE_INDEX 0 |
| 90 | return (sljit_s32)((value << 24) | (value << 16) | (value << 8) | value); |
| 91 | #elif PCRE2_CODE_UNIT_WIDTH == 16 |
| 92 | #define SSE2_COMPARE_TYPE_INDEX 1 |
| 93 | return (sljit_s32)((value << 16) | value); |
| 94 | #elif PCRE2_CODE_UNIT_WIDTH == 32 |
| 95 | #define SSE2_COMPARE_TYPE_INDEX 2 |
| 96 | return (sljit_s32)(value); |
| 97 | #else |
| 98 | #error "Unsupported unit width" |
| 99 | #endif |
| 100 | } |
| 101 | |
| 102 | static void load_from_mem_sse2(struct sljit_compiler *compiler, sljit_s32 dst_xmm_reg, sljit_s32 src_general_reg, sljit_s8 offset) |
| 103 | { |
| 104 | sljit_u8 instruction[5]; |
| 105 | |
| 106 | SLJIT_ASSERT(dst_xmm_reg < 8); |
| 107 | SLJIT_ASSERT(src_general_reg < 8); |
| 108 | |
| 109 | /* MOVDQA xmm1, xmm2/m128 */ |
| 110 | instruction[0] = ((sljit_u8)offset & 0xf) == 0 ? 0x66 : 0xf3; |
| 111 | instruction[1] = 0x0f; |
| 112 | instruction[2] = 0x6f; |
| 113 | |
| 114 | if (offset == 0) |
| 115 | { |
| 116 | instruction[3] = (dst_xmm_reg << 3) | src_general_reg; |
| 117 | sljit_emit_op_custom(compiler, instruction, 4); |
| 118 | return; |
| 119 | } |
| 120 | |
| 121 | instruction[3] = 0x40 | (dst_xmm_reg << 3) | src_general_reg; |
| 122 | instruction[4] = (sljit_u8)offset; |
| 123 | sljit_emit_op_custom(compiler, instruction, 5); |
| 124 | } |
| 125 | |
| 126 | static void fast_forward_char_pair_sse2_compare(struct sljit_compiler *compiler, vector_compare_type compare_type, |
| 127 | int step, sljit_s32 dst_ind, sljit_s32 cmp1_ind, sljit_s32 cmp2_ind, sljit_s32 tmp_ind) |
| 128 | { |
| 129 | sljit_u8 instruction[4]; |
| 130 | instruction[0] = 0x66; |
| 131 | instruction[1] = 0x0f; |
| 132 | |
| 133 | SLJIT_ASSERT(step >= 0 && step <= 3); |
| 134 | |
| 135 | if (compare_type != vector_compare_match2) |
| 136 | { |
| 137 | if (step == 0) |
| 138 | { |
| 139 | if (compare_type == vector_compare_match1i) |
| 140 | { |
| 141 | /* POR xmm1, xmm2/m128 */ |
| 142 | /* instruction[0] = 0x66; */ |
| 143 | /* instruction[1] = 0x0f; */ |
| 144 | instruction[2] = 0xeb; |
| 145 | instruction[3] = 0xc0 | (dst_ind << 3) | cmp2_ind; |
| 146 | sljit_emit_op_custom(compiler, instruction, 4); |
| 147 | } |
| 148 | return; |
| 149 | } |
| 150 | |
| 151 | if (step != 2) |
| 152 | return; |
| 153 | |
| 154 | /* PCMPEQB/W/D xmm1, xmm2/m128 */ |
| 155 | /* instruction[0] = 0x66; */ |
| 156 | /* instruction[1] = 0x0f; */ |
| 157 | instruction[2] = 0x74 + SSE2_COMPARE_TYPE_INDEX; |
| 158 | instruction[3] = 0xc0 | (dst_ind << 3) | cmp1_ind; |
| 159 | sljit_emit_op_custom(compiler, instruction, 4); |
| 160 | return; |
| 161 | } |
| 162 | |
| 163 | switch (step) |
| 164 | { |
| 165 | case 0: |
| 166 | /* MOVDQA xmm1, xmm2/m128 */ |
| 167 | /* instruction[0] = 0x66; */ |
| 168 | /* instruction[1] = 0x0f; */ |
| 169 | instruction[2] = 0x6f; |
| 170 | instruction[3] = 0xc0 | (tmp_ind << 3) | dst_ind; |
| 171 | sljit_emit_op_custom(compiler, instruction, 4); |
| 172 | return; |
| 173 | |
| 174 | case 1: |
| 175 | /* PCMPEQB/W/D xmm1, xmm2/m128 */ |
| 176 | /* instruction[0] = 0x66; */ |
| 177 | /* instruction[1] = 0x0f; */ |
| 178 | instruction[2] = 0x74 + SSE2_COMPARE_TYPE_INDEX; |
| 179 | instruction[3] = 0xc0 | (dst_ind << 3) | cmp1_ind; |
| 180 | sljit_emit_op_custom(compiler, instruction, 4); |
| 181 | return; |
| 182 | |
| 183 | case 2: |
| 184 | /* PCMPEQB/W/D xmm1, xmm2/m128 */ |
| 185 | /* instruction[0] = 0x66; */ |
| 186 | /* instruction[1] = 0x0f; */ |
| 187 | instruction[2] = 0x74 + SSE2_COMPARE_TYPE_INDEX; |
| 188 | instruction[3] = 0xc0 | (tmp_ind << 3) | cmp2_ind; |
| 189 | sljit_emit_op_custom(compiler, instruction, 4); |
| 190 | return; |
| 191 | |
| 192 | case 3: |
| 193 | /* POR xmm1, xmm2/m128 */ |
| 194 | /* instruction[0] = 0x66; */ |
| 195 | /* instruction[1] = 0x0f; */ |
| 196 | instruction[2] = 0xeb; |
| 197 | instruction[3] = 0xc0 | (dst_ind << 3) | tmp_ind; |
| 198 | sljit_emit_op_custom(compiler, instruction, 4); |
| 199 | return; |
| 200 | } |
| 201 | } |
| 202 | |
| 203 | #define JIT_HAS_FAST_FORWARD_CHAR_SIMD (sljit_has_cpu_feature(SLJIT_HAS_SSE2)) |
| 204 | |
| 205 | static void fast_forward_char_simd(compiler_common *common, PCRE2_UCHAR char1, PCRE2_UCHAR char2, sljit_s32 offset) |
| 206 | { |
| 207 | DEFINE_COMPILER; |
| 208 | sljit_u8 instruction[8]; |
| 209 | struct sljit_label *start; |
| 210 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 211 | struct sljit_label *restart; |
| 212 | #endif |
| 213 | struct sljit_jump *quit; |
| 214 | struct sljit_jump *partial_quit[2]; |
| 215 | vector_compare_type compare_type = vector_compare_match1; |
| 216 | sljit_s32 tmp1_reg_ind = sljit_get_register_index(TMP1); |
| 217 | sljit_s32 str_ptr_reg_ind = sljit_get_register_index(STR_PTR); |
| 218 | sljit_s32 data_ind = 0; |
| 219 | sljit_s32 tmp_ind = 1; |
| 220 | sljit_s32 cmp1_ind = 2; |
| 221 | sljit_s32 cmp2_ind = 3; |
| 222 | sljit_u32 bit = 0; |
| 223 | int i; |
| 224 | |
| 225 | SLJIT_UNUSED_ARG(offset); |
| 226 | |
| 227 | if (char1 != char2) |
| 228 | { |
| 229 | bit = char1 ^ char2; |
| 230 | compare_type = vector_compare_match1i; |
| 231 | |
| 232 | if (!is_powerof2(bit)) |
| 233 | { |
| 234 | bit = 0; |
| 235 | compare_type = vector_compare_match2; |
| 236 | } |
| 237 | } |
| 238 | |
| 239 | partial_quit[0] = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0); |
| 240 | if (common->mode == PCRE2_JIT_COMPLETE) |
| 241 | add_jump(compiler, &common->failed_match, partial_quit[0]); |
| 242 | |
| 243 | /* First part (unaligned start) */ |
| 244 | |
| 245 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, character_to_int32(char1 | bit)); |
| 246 | |
| 247 | SLJIT_ASSERT(tmp1_reg_ind < 8); |
| 248 | |
| 249 | /* MOVD xmm, r/m32 */ |
| 250 | instruction[0] = 0x66; |
| 251 | instruction[1] = 0x0f; |
| 252 | instruction[2] = 0x6e; |
| 253 | instruction[3] = 0xc0 | (cmp1_ind << 3) | tmp1_reg_ind; |
| 254 | sljit_emit_op_custom(compiler, instruction, 4); |
| 255 | |
| 256 | if (char1 != char2) |
| 257 | { |
| 258 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, character_to_int32(bit != 0 ? bit : char2)); |
| 259 | |
| 260 | /* MOVD xmm, r/m32 */ |
| 261 | instruction[3] = 0xc0 | (cmp2_ind << 3) | tmp1_reg_ind; |
| 262 | sljit_emit_op_custom(compiler, instruction, 4); |
| 263 | } |
| 264 | |
| 265 | OP1(SLJIT_MOV, TMP2, 0, STR_PTR, 0); |
| 266 | |
| 267 | /* PSHUFD xmm1, xmm2/m128, imm8 */ |
| 268 | /* instruction[0] = 0x66; */ |
| 269 | /* instruction[1] = 0x0f; */ |
| 270 | instruction[2] = 0x70; |
| 271 | instruction[3] = 0xc0 | (cmp1_ind << 3) | cmp1_ind; |
| 272 | instruction[4] = 0; |
| 273 | sljit_emit_op_custom(compiler, instruction, 5); |
| 274 | |
| 275 | if (char1 != char2) |
| 276 | { |
| 277 | /* PSHUFD xmm1, xmm2/m128, imm8 */ |
| 278 | instruction[3] = 0xc0 | (cmp2_ind << 3) | cmp2_ind; |
| 279 | sljit_emit_op_custom(compiler, instruction, 5); |
| 280 | } |
| 281 | |
| 282 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 283 | restart = LABEL(); |
| 284 | #endif |
| 285 | OP2(SLJIT_AND, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, ~0xf); |
| 286 | OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xf); |
| 287 | |
| 288 | load_from_mem_sse2(compiler, data_ind, str_ptr_reg_ind, 0); |
| 289 | for (i = 0; i < 4; i++) |
| 290 | fast_forward_char_pair_sse2_compare(compiler, compare_type, i, data_ind, cmp1_ind, cmp2_ind, tmp_ind); |
| 291 | |
| 292 | /* PMOVMSKB reg, xmm */ |
| 293 | /* instruction[0] = 0x66; */ |
| 294 | /* instruction[1] = 0x0f; */ |
| 295 | instruction[2] = 0xd7; |
| 296 | instruction[3] = 0xc0 | (tmp1_reg_ind << 3) | data_ind; |
| 297 | sljit_emit_op_custom(compiler, instruction, 4); |
| 298 | |
| 299 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0); |
| 300 | OP2(SLJIT_LSHR, TMP1, 0, TMP1, 0, TMP2, 0); |
| 301 | |
| 302 | quit = CMP(SLJIT_NOT_ZERO, TMP1, 0, SLJIT_IMM, 0); |
| 303 | |
| 304 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP2, 0); |
| 305 | |
| 306 | /* Second part (aligned) */ |
| 307 | start = LABEL(); |
| 308 | |
| 309 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, 16); |
| 310 | |
| 311 | partial_quit[1] = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0); |
| 312 | if (common->mode == PCRE2_JIT_COMPLETE) |
| 313 | add_jump(compiler, &common->failed_match, partial_quit[1]); |
| 314 | |
| 315 | load_from_mem_sse2(compiler, data_ind, str_ptr_reg_ind, 0); |
| 316 | for (i = 0; i < 4; i++) |
| 317 | fast_forward_char_pair_sse2_compare(compiler, compare_type, i, data_ind, cmp1_ind, cmp2_ind, tmp_ind); |
| 318 | |
| 319 | /* PMOVMSKB reg, xmm */ |
| 320 | /* instruction[0] = 0x66; */ |
| 321 | /* instruction[1] = 0x0f; */ |
| 322 | instruction[2] = 0xd7; |
| 323 | instruction[3] = 0xc0 | (tmp1_reg_ind << 3) | data_ind; |
| 324 | sljit_emit_op_custom(compiler, instruction, 4); |
| 325 | |
| 326 | CMPTO(SLJIT_ZERO, TMP1, 0, SLJIT_IMM, 0, start); |
| 327 | |
| 328 | JUMPHERE(quit); |
| 329 | |
| 330 | /* BSF r32, r/m32 */ |
| 331 | instruction[0] = 0x0f; |
| 332 | instruction[1] = 0xbc; |
| 333 | instruction[2] = 0xc0 | (tmp1_reg_ind << 3) | tmp1_reg_ind; |
| 334 | sljit_emit_op_custom(compiler, instruction, 3); |
| 335 | |
| 336 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0); |
| 337 | |
| 338 | if (common->mode != PCRE2_JIT_COMPLETE) |
| 339 | { |
| 340 | JUMPHERE(partial_quit[0]); |
| 341 | JUMPHERE(partial_quit[1]); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame] | 342 | OP2U(SLJIT_SUB | SLJIT_SET_GREATER, STR_PTR, 0, STR_END, 0); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 343 | CMOV(SLJIT_GREATER, STR_PTR, STR_END, 0); |
| 344 | } |
| 345 | else |
| 346 | add_jump(compiler, &common->failed_match, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); |
| 347 | |
| 348 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 349 | if (common->utf && offset > 0) |
| 350 | { |
| 351 | SLJIT_ASSERT(common->mode == PCRE2_JIT_COMPLETE); |
| 352 | |
| 353 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-offset)); |
| 354 | |
| 355 | quit = jump_if_utf_char_start(compiler, TMP1); |
| 356 | |
| 357 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 358 | add_jump(compiler, &common->failed_match, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); |
| 359 | OP1(SLJIT_MOV, TMP2, 0, STR_PTR, 0); |
| 360 | JUMPTO(SLJIT_JUMP, restart); |
| 361 | |
| 362 | JUMPHERE(quit); |
| 363 | } |
| 364 | #endif |
| 365 | } |
| 366 | |
| 367 | #define JIT_HAS_FAST_REQUESTED_CHAR_SIMD (sljit_has_cpu_feature(SLJIT_HAS_SSE2)) |
| 368 | |
| 369 | static jump_list *fast_requested_char_simd(compiler_common *common, PCRE2_UCHAR char1, PCRE2_UCHAR char2) |
| 370 | { |
| 371 | DEFINE_COMPILER; |
| 372 | sljit_u8 instruction[8]; |
| 373 | struct sljit_label *start; |
| 374 | struct sljit_jump *quit; |
| 375 | jump_list *not_found = NULL; |
| 376 | vector_compare_type compare_type = vector_compare_match1; |
| 377 | sljit_s32 tmp1_reg_ind = sljit_get_register_index(TMP1); |
| 378 | sljit_s32 str_ptr_reg_ind = sljit_get_register_index(STR_PTR); |
| 379 | sljit_s32 data_ind = 0; |
| 380 | sljit_s32 tmp_ind = 1; |
| 381 | sljit_s32 cmp1_ind = 2; |
| 382 | sljit_s32 cmp2_ind = 3; |
| 383 | sljit_u32 bit = 0; |
| 384 | int i; |
| 385 | |
| 386 | if (char1 != char2) |
| 387 | { |
| 388 | bit = char1 ^ char2; |
| 389 | compare_type = vector_compare_match1i; |
| 390 | |
| 391 | if (!is_powerof2(bit)) |
| 392 | { |
| 393 | bit = 0; |
| 394 | compare_type = vector_compare_match2; |
| 395 | } |
| 396 | } |
| 397 | |
| 398 | add_jump(compiler, ¬_found, CMP(SLJIT_GREATER_EQUAL, TMP1, 0, STR_END, 0)); |
| 399 | OP1(SLJIT_MOV, TMP2, 0, TMP1, 0); |
| 400 | OP1(SLJIT_MOV, TMP3, 0, STR_PTR, 0); |
| 401 | |
| 402 | /* First part (unaligned start) */ |
| 403 | |
| 404 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, character_to_int32(char1 | bit)); |
| 405 | |
| 406 | SLJIT_ASSERT(tmp1_reg_ind < 8); |
| 407 | |
| 408 | /* MOVD xmm, r/m32 */ |
| 409 | instruction[0] = 0x66; |
| 410 | instruction[1] = 0x0f; |
| 411 | instruction[2] = 0x6e; |
| 412 | instruction[3] = 0xc0 | (cmp1_ind << 3) | tmp1_reg_ind; |
| 413 | sljit_emit_op_custom(compiler, instruction, 4); |
| 414 | |
| 415 | if (char1 != char2) |
| 416 | { |
| 417 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, character_to_int32(bit != 0 ? bit : char2)); |
| 418 | |
| 419 | /* MOVD xmm, r/m32 */ |
| 420 | instruction[3] = 0xc0 | (cmp2_ind << 3) | tmp1_reg_ind; |
| 421 | sljit_emit_op_custom(compiler, instruction, 4); |
| 422 | } |
| 423 | |
| 424 | OP1(SLJIT_MOV, STR_PTR, 0, TMP2, 0); |
| 425 | |
| 426 | /* PSHUFD xmm1, xmm2/m128, imm8 */ |
| 427 | /* instruction[0] = 0x66; */ |
| 428 | /* instruction[1] = 0x0f; */ |
| 429 | instruction[2] = 0x70; |
| 430 | instruction[3] = 0xc0 | (cmp1_ind << 3) | cmp1_ind; |
| 431 | instruction[4] = 0; |
| 432 | sljit_emit_op_custom(compiler, instruction, 5); |
| 433 | |
| 434 | if (char1 != char2) |
| 435 | { |
| 436 | /* PSHUFD xmm1, xmm2/m128, imm8 */ |
| 437 | instruction[3] = 0xc0 | (cmp2_ind << 3) | cmp2_ind; |
| 438 | sljit_emit_op_custom(compiler, instruction, 5); |
| 439 | } |
| 440 | |
| 441 | OP2(SLJIT_AND, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, ~0xf); |
| 442 | OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xf); |
| 443 | |
| 444 | load_from_mem_sse2(compiler, data_ind, str_ptr_reg_ind, 0); |
| 445 | for (i = 0; i < 4; i++) |
| 446 | fast_forward_char_pair_sse2_compare(compiler, compare_type, i, data_ind, cmp1_ind, cmp2_ind, tmp_ind); |
| 447 | |
| 448 | /* PMOVMSKB reg, xmm */ |
| 449 | /* instruction[0] = 0x66; */ |
| 450 | /* instruction[1] = 0x0f; */ |
| 451 | instruction[2] = 0xd7; |
| 452 | instruction[3] = 0xc0 | (tmp1_reg_ind << 3) | data_ind; |
| 453 | sljit_emit_op_custom(compiler, instruction, 4); |
| 454 | |
| 455 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0); |
| 456 | OP2(SLJIT_LSHR, TMP1, 0, TMP1, 0, TMP2, 0); |
| 457 | |
| 458 | quit = CMP(SLJIT_NOT_ZERO, TMP1, 0, SLJIT_IMM, 0); |
| 459 | |
| 460 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP2, 0); |
| 461 | |
| 462 | /* Second part (aligned) */ |
| 463 | start = LABEL(); |
| 464 | |
| 465 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, 16); |
| 466 | |
| 467 | add_jump(compiler, ¬_found, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); |
| 468 | |
| 469 | load_from_mem_sse2(compiler, data_ind, str_ptr_reg_ind, 0); |
| 470 | for (i = 0; i < 4; i++) |
| 471 | fast_forward_char_pair_sse2_compare(compiler, compare_type, i, data_ind, cmp1_ind, cmp2_ind, tmp_ind); |
| 472 | |
| 473 | /* PMOVMSKB reg, xmm */ |
| 474 | /* instruction[0] = 0x66; */ |
| 475 | /* instruction[1] = 0x0f; */ |
| 476 | instruction[2] = 0xd7; |
| 477 | instruction[3] = 0xc0 | (tmp1_reg_ind << 3) | data_ind; |
| 478 | sljit_emit_op_custom(compiler, instruction, 4); |
| 479 | |
| 480 | CMPTO(SLJIT_ZERO, TMP1, 0, SLJIT_IMM, 0, start); |
| 481 | |
| 482 | JUMPHERE(quit); |
| 483 | |
| 484 | /* BSF r32, r/m32 */ |
| 485 | instruction[0] = 0x0f; |
| 486 | instruction[1] = 0xbc; |
| 487 | instruction[2] = 0xc0 | (tmp1_reg_ind << 3) | tmp1_reg_ind; |
| 488 | sljit_emit_op_custom(compiler, instruction, 3); |
| 489 | |
| 490 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, STR_PTR, 0); |
| 491 | add_jump(compiler, ¬_found, CMP(SLJIT_GREATER_EQUAL, TMP1, 0, STR_END, 0)); |
| 492 | |
| 493 | OP1(SLJIT_MOV, STR_PTR, 0, TMP3, 0); |
| 494 | return not_found; |
| 495 | } |
| 496 | |
| 497 | #ifndef _WIN64 |
| 498 | |
| 499 | #define JIT_HAS_FAST_FORWARD_CHAR_PAIR_SIMD (sljit_has_cpu_feature(SLJIT_HAS_SSE2)) |
| 500 | |
| 501 | static void fast_forward_char_pair_simd(compiler_common *common, sljit_s32 offs1, |
| 502 | PCRE2_UCHAR char1a, PCRE2_UCHAR char1b, sljit_s32 offs2, PCRE2_UCHAR char2a, PCRE2_UCHAR char2b) |
| 503 | { |
| 504 | DEFINE_COMPILER; |
| 505 | sljit_u8 instruction[8]; |
| 506 | vector_compare_type compare1_type = vector_compare_match1; |
| 507 | vector_compare_type compare2_type = vector_compare_match1; |
| 508 | sljit_u32 bit1 = 0; |
| 509 | sljit_u32 bit2 = 0; |
| 510 | sljit_u32 diff = IN_UCHARS(offs1 - offs2); |
| 511 | sljit_s32 tmp1_reg_ind = sljit_get_register_index(TMP1); |
| 512 | sljit_s32 tmp2_reg_ind = sljit_get_register_index(TMP2); |
| 513 | sljit_s32 str_ptr_reg_ind = sljit_get_register_index(STR_PTR); |
| 514 | sljit_s32 data1_ind = 0; |
| 515 | sljit_s32 data2_ind = 1; |
| 516 | sljit_s32 tmp1_ind = 2; |
| 517 | sljit_s32 tmp2_ind = 3; |
| 518 | sljit_s32 cmp1a_ind = 4; |
| 519 | sljit_s32 cmp1b_ind = 5; |
| 520 | sljit_s32 cmp2a_ind = 6; |
| 521 | sljit_s32 cmp2b_ind = 7; |
| 522 | struct sljit_label *start; |
| 523 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 524 | struct sljit_label *restart; |
| 525 | #endif |
| 526 | struct sljit_jump *jump[2]; |
| 527 | int i; |
| 528 | |
| 529 | SLJIT_ASSERT(common->mode == PCRE2_JIT_COMPLETE && offs1 > offs2); |
| 530 | SLJIT_ASSERT(diff <= IN_UCHARS(max_fast_forward_char_pair_offset())); |
| 531 | SLJIT_ASSERT(tmp1_reg_ind < 8 && tmp2_reg_ind == 1); |
| 532 | |
| 533 | /* Initialize. */ |
| 534 | if (common->match_end_ptr != 0) |
| 535 | { |
| 536 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->match_end_ptr); |
| 537 | OP1(SLJIT_MOV, TMP3, 0, STR_END, 0); |
| 538 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, IN_UCHARS(offs1 + 1)); |
| 539 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame] | 540 | OP2U(SLJIT_SUB | SLJIT_SET_LESS, TMP1, 0, STR_END, 0); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 541 | CMOV(SLJIT_LESS, STR_END, TMP1, 0); |
| 542 | } |
| 543 | |
| 544 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(offs1)); |
| 545 | add_jump(compiler, &common->failed_match, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); |
| 546 | |
| 547 | /* MOVD xmm, r/m32 */ |
| 548 | instruction[0] = 0x66; |
| 549 | instruction[1] = 0x0f; |
| 550 | instruction[2] = 0x6e; |
| 551 | |
| 552 | if (char1a == char1b) |
| 553 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, character_to_int32(char1a)); |
| 554 | else |
| 555 | { |
| 556 | bit1 = char1a ^ char1b; |
| 557 | if (is_powerof2(bit1)) |
| 558 | { |
| 559 | compare1_type = vector_compare_match1i; |
| 560 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, character_to_int32(char1a | bit1)); |
| 561 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, character_to_int32(bit1)); |
| 562 | } |
| 563 | else |
| 564 | { |
| 565 | compare1_type = vector_compare_match2; |
| 566 | bit1 = 0; |
| 567 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, character_to_int32(char1a)); |
| 568 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, character_to_int32(char1b)); |
| 569 | } |
| 570 | } |
| 571 | |
| 572 | instruction[3] = 0xc0 | (cmp1a_ind << 3) | tmp1_reg_ind; |
| 573 | sljit_emit_op_custom(compiler, instruction, 4); |
| 574 | |
| 575 | if (char1a != char1b) |
| 576 | { |
| 577 | instruction[3] = 0xc0 | (cmp1b_ind << 3) | tmp2_reg_ind; |
| 578 | sljit_emit_op_custom(compiler, instruction, 4); |
| 579 | } |
| 580 | |
| 581 | if (char2a == char2b) |
| 582 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, character_to_int32(char2a)); |
| 583 | else |
| 584 | { |
| 585 | bit2 = char2a ^ char2b; |
| 586 | if (is_powerof2(bit2)) |
| 587 | { |
| 588 | compare2_type = vector_compare_match1i; |
| 589 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, character_to_int32(char2a | bit2)); |
| 590 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, character_to_int32(bit2)); |
| 591 | } |
| 592 | else |
| 593 | { |
| 594 | compare2_type = vector_compare_match2; |
| 595 | bit2 = 0; |
| 596 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, character_to_int32(char2a)); |
| 597 | OP1(SLJIT_MOV, TMP2, 0, SLJIT_IMM, character_to_int32(char2b)); |
| 598 | } |
| 599 | } |
| 600 | |
| 601 | instruction[3] = 0xc0 | (cmp2a_ind << 3) | tmp1_reg_ind; |
| 602 | sljit_emit_op_custom(compiler, instruction, 4); |
| 603 | |
| 604 | if (char2a != char2b) |
| 605 | { |
| 606 | instruction[3] = 0xc0 | (cmp2b_ind << 3) | tmp2_reg_ind; |
| 607 | sljit_emit_op_custom(compiler, instruction, 4); |
| 608 | } |
| 609 | |
| 610 | /* PSHUFD xmm1, xmm2/m128, imm8 */ |
| 611 | /* instruction[0] = 0x66; */ |
| 612 | /* instruction[1] = 0x0f; */ |
| 613 | instruction[2] = 0x70; |
| 614 | instruction[4] = 0; |
| 615 | |
| 616 | instruction[3] = 0xc0 | (cmp1a_ind << 3) | cmp1a_ind; |
| 617 | sljit_emit_op_custom(compiler, instruction, 5); |
| 618 | |
| 619 | if (char1a != char1b) |
| 620 | { |
| 621 | instruction[3] = 0xc0 | (cmp1b_ind << 3) | cmp1b_ind; |
| 622 | sljit_emit_op_custom(compiler, instruction, 5); |
| 623 | } |
| 624 | |
| 625 | instruction[3] = 0xc0 | (cmp2a_ind << 3) | cmp2a_ind; |
| 626 | sljit_emit_op_custom(compiler, instruction, 5); |
| 627 | |
| 628 | if (char2a != char2b) |
| 629 | { |
| 630 | instruction[3] = 0xc0 | (cmp2b_ind << 3) | cmp2b_ind; |
| 631 | sljit_emit_op_custom(compiler, instruction, 5); |
| 632 | } |
| 633 | |
| 634 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 635 | restart = LABEL(); |
| 636 | #endif |
| 637 | |
| 638 | OP2(SLJIT_SUB, TMP1, 0, STR_PTR, 0, SLJIT_IMM, diff); |
| 639 | OP1(SLJIT_MOV, TMP2, 0, STR_PTR, 0); |
| 640 | OP2(SLJIT_AND, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, ~0xf); |
| 641 | |
| 642 | load_from_mem_sse2(compiler, data1_ind, str_ptr_reg_ind, 0); |
| 643 | |
| 644 | jump[0] = CMP(SLJIT_GREATER_EQUAL, TMP1, 0, STR_PTR, 0); |
| 645 | |
| 646 | load_from_mem_sse2(compiler, data2_ind, str_ptr_reg_ind, -(sljit_s8)diff); |
| 647 | jump[1] = JUMP(SLJIT_JUMP); |
| 648 | |
| 649 | JUMPHERE(jump[0]); |
| 650 | |
| 651 | /* MOVDQA xmm1, xmm2/m128 */ |
| 652 | /* instruction[0] = 0x66; */ |
| 653 | /* instruction[1] = 0x0f; */ |
| 654 | instruction[2] = 0x6f; |
| 655 | instruction[3] = 0xc0 | (data2_ind << 3) | data1_ind; |
| 656 | sljit_emit_op_custom(compiler, instruction, 4); |
| 657 | |
| 658 | /* PSLLDQ xmm1, imm8 */ |
| 659 | /* instruction[0] = 0x66; */ |
| 660 | /* instruction[1] = 0x0f; */ |
| 661 | instruction[2] = 0x73; |
| 662 | instruction[3] = 0xc0 | (7 << 3) | data2_ind; |
| 663 | instruction[4] = diff; |
| 664 | sljit_emit_op_custom(compiler, instruction, 5); |
| 665 | |
| 666 | JUMPHERE(jump[1]); |
| 667 | |
| 668 | OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, 0xf); |
| 669 | |
| 670 | for (i = 0; i < 4; i++) |
| 671 | { |
| 672 | fast_forward_char_pair_sse2_compare(compiler, compare2_type, i, data2_ind, cmp2a_ind, cmp2b_ind, tmp2_ind); |
| 673 | fast_forward_char_pair_sse2_compare(compiler, compare1_type, i, data1_ind, cmp1a_ind, cmp1b_ind, tmp1_ind); |
| 674 | } |
| 675 | |
| 676 | /* PAND xmm1, xmm2/m128 */ |
| 677 | /* instruction[0] = 0x66; */ |
| 678 | /* instruction[1] = 0x0f; */ |
| 679 | instruction[2] = 0xdb; |
| 680 | instruction[3] = 0xc0 | (data1_ind << 3) | data2_ind; |
| 681 | sljit_emit_op_custom(compiler, instruction, 4); |
| 682 | |
| 683 | /* PMOVMSKB reg, xmm */ |
| 684 | /* instruction[0] = 0x66; */ |
| 685 | /* instruction[1] = 0x0f; */ |
| 686 | instruction[2] = 0xd7; |
| 687 | instruction[3] = 0xc0 | (tmp1_reg_ind << 3) | 0; |
| 688 | sljit_emit_op_custom(compiler, instruction, 4); |
| 689 | |
| 690 | /* Ignore matches before the first STR_PTR. */ |
| 691 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0); |
| 692 | OP2(SLJIT_LSHR, TMP1, 0, TMP1, 0, TMP2, 0); |
| 693 | |
| 694 | jump[0] = CMP(SLJIT_NOT_ZERO, TMP1, 0, SLJIT_IMM, 0); |
| 695 | |
| 696 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, TMP2, 0); |
| 697 | |
| 698 | /* Main loop. */ |
| 699 | start = LABEL(); |
| 700 | |
| 701 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, 16); |
| 702 | add_jump(compiler, &common->failed_match, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); |
| 703 | |
| 704 | load_from_mem_sse2(compiler, data1_ind, str_ptr_reg_ind, 0); |
| 705 | load_from_mem_sse2(compiler, data2_ind, str_ptr_reg_ind, -(sljit_s8)diff); |
| 706 | |
| 707 | for (i = 0; i < 4; i++) |
| 708 | { |
| 709 | fast_forward_char_pair_sse2_compare(compiler, compare1_type, i, data1_ind, cmp1a_ind, cmp1b_ind, tmp2_ind); |
| 710 | fast_forward_char_pair_sse2_compare(compiler, compare2_type, i, data2_ind, cmp2a_ind, cmp2b_ind, tmp1_ind); |
| 711 | } |
| 712 | |
| 713 | /* PAND xmm1, xmm2/m128 */ |
| 714 | /* instruction[0] = 0x66; */ |
| 715 | /* instruction[1] = 0x0f; */ |
| 716 | instruction[2] = 0xdb; |
| 717 | instruction[3] = 0xc0 | (data1_ind << 3) | data2_ind; |
| 718 | sljit_emit_op_custom(compiler, instruction, 4); |
| 719 | |
| 720 | /* PMOVMSKB reg, xmm */ |
| 721 | /* instruction[0] = 0x66; */ |
| 722 | /* instruction[1] = 0x0f; */ |
| 723 | instruction[2] = 0xd7; |
| 724 | instruction[3] = 0xc0 | (tmp1_reg_ind << 3) | 0; |
| 725 | sljit_emit_op_custom(compiler, instruction, 4); |
| 726 | |
| 727 | CMPTO(SLJIT_ZERO, TMP1, 0, SLJIT_IMM, 0, start); |
| 728 | |
| 729 | JUMPHERE(jump[0]); |
| 730 | |
| 731 | /* BSF r32, r/m32 */ |
| 732 | instruction[0] = 0x0f; |
| 733 | instruction[1] = 0xbc; |
| 734 | instruction[2] = 0xc0 | (tmp1_reg_ind << 3) | tmp1_reg_ind; |
| 735 | sljit_emit_op_custom(compiler, instruction, 3); |
| 736 | |
| 737 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0); |
| 738 | |
| 739 | add_jump(compiler, &common->failed_match, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); |
| 740 | |
| 741 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 742 | if (common->utf) |
| 743 | { |
| 744 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-offs1)); |
| 745 | |
| 746 | jump[0] = jump_if_utf_char_start(compiler, TMP1); |
| 747 | |
| 748 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 749 | CMPTO(SLJIT_LESS, STR_PTR, 0, STR_END, 0, restart); |
| 750 | |
| 751 | add_jump(compiler, &common->failed_match, JUMP(SLJIT_JUMP)); |
| 752 | |
| 753 | JUMPHERE(jump[0]); |
| 754 | } |
| 755 | #endif |
| 756 | |
| 757 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(offs1)); |
| 758 | |
| 759 | if (common->match_end_ptr != 0) |
| 760 | OP1(SLJIT_MOV, STR_END, 0, TMP3, 0); |
| 761 | } |
| 762 | |
| 763 | #endif /* !_WIN64 */ |
| 764 | |
| 765 | #undef SSE2_COMPARE_TYPE_INDEX |
| 766 | |
| 767 | #endif /* SLJIT_CONFIG_X86 */ |
| 768 | |
| 769 | #if (defined SLJIT_CONFIG_ARM_64 && SLJIT_CONFIG_ARM_64 && (defined __ARM_NEON || defined __ARM_NEON__)) |
| 770 | |
| 771 | #include <arm_neon.h> |
| 772 | |
| 773 | typedef union { |
| 774 | unsigned int x; |
| 775 | struct { unsigned char c1, c2, c3, c4; } c; |
| 776 | } int_char; |
| 777 | |
| 778 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 779 | static SLJIT_INLINE int utf_continue(sljit_u8 *s) |
| 780 | { |
| 781 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 782 | return (*s & 0xc0) == 0x80; |
| 783 | #elif PCRE2_CODE_UNIT_WIDTH == 16 |
| 784 | return (*s & 0xfc00) == 0xdc00; |
| 785 | #else |
| 786 | #error "Unknown code width" |
| 787 | #endif |
| 788 | } |
| 789 | #endif /* SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 */ |
| 790 | |
| 791 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 792 | # define VECTOR_FACTOR 16 |
| 793 | # define vect_t uint8x16_t |
| 794 | # define VLD1Q(X) vld1q_u8((sljit_u8 *)(X)) |
| 795 | # define VCEQQ vceqq_u8 |
| 796 | # define VORRQ vorrq_u8 |
| 797 | # define VST1Q vst1q_u8 |
| 798 | # define VDUPQ vdupq_n_u8 |
| 799 | # define VEXTQ vextq_u8 |
| 800 | # define VANDQ vandq_u8 |
| 801 | typedef union { |
| 802 | uint8_t mem[16]; |
| 803 | uint64_t dw[2]; |
| 804 | } quad_word; |
| 805 | #elif PCRE2_CODE_UNIT_WIDTH == 16 |
| 806 | # define VECTOR_FACTOR 8 |
| 807 | # define vect_t uint16x8_t |
| 808 | # define VLD1Q(X) vld1q_u16((sljit_u16 *)(X)) |
| 809 | # define VCEQQ vceqq_u16 |
| 810 | # define VORRQ vorrq_u16 |
| 811 | # define VST1Q vst1q_u16 |
| 812 | # define VDUPQ vdupq_n_u16 |
| 813 | # define VEXTQ vextq_u16 |
| 814 | # define VANDQ vandq_u16 |
| 815 | typedef union { |
| 816 | uint16_t mem[8]; |
| 817 | uint64_t dw[2]; |
| 818 | } quad_word; |
| 819 | #else |
| 820 | # define VECTOR_FACTOR 4 |
| 821 | # define vect_t uint32x4_t |
| 822 | # define VLD1Q(X) vld1q_u32((sljit_u32 *)(X)) |
| 823 | # define VCEQQ vceqq_u32 |
| 824 | # define VORRQ vorrq_u32 |
| 825 | # define VST1Q vst1q_u32 |
| 826 | # define VDUPQ vdupq_n_u32 |
| 827 | # define VEXTQ vextq_u32 |
| 828 | # define VANDQ vandq_u32 |
| 829 | typedef union { |
| 830 | uint32_t mem[4]; |
| 831 | uint64_t dw[2]; |
| 832 | } quad_word; |
| 833 | #endif |
| 834 | |
| 835 | #define FFCS |
| 836 | #include "pcre2_jit_neon_inc.h" |
| 837 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 838 | # define FF_UTF |
| 839 | # include "pcre2_jit_neon_inc.h" |
| 840 | # undef FF_UTF |
| 841 | #endif |
| 842 | #undef FFCS |
| 843 | |
| 844 | #define FFCS_2 |
| 845 | #include "pcre2_jit_neon_inc.h" |
| 846 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 847 | # define FF_UTF |
| 848 | # include "pcre2_jit_neon_inc.h" |
| 849 | # undef FF_UTF |
| 850 | #endif |
| 851 | #undef FFCS_2 |
| 852 | |
| 853 | #define FFCS_MASK |
| 854 | #include "pcre2_jit_neon_inc.h" |
| 855 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 856 | # define FF_UTF |
| 857 | # include "pcre2_jit_neon_inc.h" |
| 858 | # undef FF_UTF |
| 859 | #endif |
| 860 | #undef FFCS_MASK |
| 861 | |
| 862 | #define JIT_HAS_FAST_FORWARD_CHAR_SIMD 1 |
| 863 | |
| 864 | static void fast_forward_char_simd(compiler_common *common, PCRE2_UCHAR char1, PCRE2_UCHAR char2, sljit_s32 offset) |
| 865 | { |
| 866 | DEFINE_COMPILER; |
| 867 | int_char ic; |
| 868 | struct sljit_jump *partial_quit; |
| 869 | /* Save temporary registers. */ |
| 870 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS0, STR_PTR, 0); |
| 871 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS1, TMP3, 0); |
| 872 | |
| 873 | /* Prepare function arguments */ |
| 874 | OP1(SLJIT_MOV, SLJIT_R0, 0, STR_END, 0); |
| 875 | OP1(SLJIT_MOV, SLJIT_R1, 0, STR_PTR, 0); |
| 876 | OP1(SLJIT_MOV, SLJIT_R2, 0, SLJIT_IMM, offset); |
| 877 | |
| 878 | if (char1 == char2) |
| 879 | { |
| 880 | ic.c.c1 = char1; |
| 881 | ic.c.c2 = char2; |
| 882 | OP1(SLJIT_MOV, SLJIT_R4, 0, SLJIT_IMM, ic.x); |
| 883 | |
| 884 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 885 | if (common->utf && offset > 0) |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame] | 886 | sljit_emit_icall(compiler, SLJIT_CALL, SLJIT_ARGS4(W, W, W, W, W), |
| 887 | SLJIT_IMM, SLJIT_FUNC_ADDR(ffcs_utf)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 888 | else |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame] | 889 | sljit_emit_icall(compiler, SLJIT_CALL, SLJIT_ARGS4(W, W, W, W, W), |
| 890 | SLJIT_IMM, SLJIT_FUNC_ADDR(ffcs)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 891 | #else |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame] | 892 | sljit_emit_icall(compiler, SLJIT_CALL, SLJIT_ARGS4(W, W, W, W, W), |
| 893 | SLJIT_IMM, SLJIT_FUNC_ADDR(ffcs)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 894 | #endif |
| 895 | } |
| 896 | else |
| 897 | { |
| 898 | PCRE2_UCHAR mask = char1 ^ char2; |
| 899 | if (is_powerof2(mask)) |
| 900 | { |
| 901 | ic.c.c1 = char1 | mask; |
| 902 | ic.c.c2 = mask; |
| 903 | OP1(SLJIT_MOV, SLJIT_R4, 0, SLJIT_IMM, ic.x); |
| 904 | |
| 905 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 906 | if (common->utf && offset > 0) |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame] | 907 | sljit_emit_icall(compiler, SLJIT_CALL, SLJIT_ARGS4(W, W, W, W, W), |
| 908 | SLJIT_IMM, SLJIT_FUNC_ADDR(ffcs_mask_utf)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 909 | else |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame] | 910 | sljit_emit_icall(compiler, SLJIT_CALL, SLJIT_ARGS4(W, W, W, W, W), |
| 911 | SLJIT_IMM, SLJIT_FUNC_ADDR(ffcs_mask)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 912 | #else |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame] | 913 | sljit_emit_icall(compiler, SLJIT_CALL, SLJIT_ARGS4(W, W, W, W, W), |
| 914 | SLJIT_IMM, SLJIT_FUNC_ADDR(ffcs_mask)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 915 | #endif |
| 916 | } |
| 917 | else |
| 918 | { |
| 919 | ic.c.c1 = char1; |
| 920 | ic.c.c2 = char2; |
| 921 | OP1(SLJIT_MOV, SLJIT_R4, 0, SLJIT_IMM, ic.x); |
| 922 | |
| 923 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 924 | if (common->utf && offset > 0) |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame] | 925 | sljit_emit_icall(compiler, SLJIT_CALL, SLJIT_ARGS4(W, W, W, W, W), |
| 926 | SLJIT_IMM, SLJIT_FUNC_ADDR(ffcs_2_utf)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 927 | else |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame] | 928 | sljit_emit_icall(compiler, SLJIT_CALL, SLJIT_ARGS4(W, W, W, W, W), |
| 929 | SLJIT_IMM, SLJIT_FUNC_ADDR(ffcs_2)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 930 | #else |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame] | 931 | sljit_emit_icall(compiler, SLJIT_CALL, SLJIT_ARGS4(W, W, W, W, W), |
| 932 | SLJIT_IMM, SLJIT_FUNC_ADDR(ffcs_2)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 933 | #endif |
| 934 | } |
| 935 | } |
| 936 | /* Restore registers. */ |
| 937 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), LOCALS0); |
| 938 | OP1(SLJIT_MOV, TMP3, 0, SLJIT_MEM1(SLJIT_SP), LOCALS1); |
| 939 | |
| 940 | /* Check return value. */ |
| 941 | partial_quit = CMP(SLJIT_EQUAL, SLJIT_RETURN_REG, 0, SLJIT_IMM, 0); |
| 942 | if (common->mode == PCRE2_JIT_COMPLETE) |
| 943 | add_jump(compiler, &common->failed_match, partial_quit); |
| 944 | |
| 945 | /* Fast forward STR_PTR to the result of memchr. */ |
| 946 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_RETURN_REG, 0); |
| 947 | |
| 948 | if (common->mode != PCRE2_JIT_COMPLETE) |
| 949 | JUMPHERE(partial_quit); |
| 950 | } |
| 951 | |
| 952 | typedef enum { |
| 953 | compare_match1, |
| 954 | compare_match1i, |
| 955 | compare_match2, |
| 956 | } compare_type; |
| 957 | |
| 958 | static inline vect_t fast_forward_char_pair_compare(compare_type ctype, vect_t dst, vect_t cmp1, vect_t cmp2) |
| 959 | { |
| 960 | if (ctype == compare_match2) |
| 961 | { |
| 962 | vect_t tmp = dst; |
| 963 | dst = VCEQQ(dst, cmp1); |
| 964 | tmp = VCEQQ(tmp, cmp2); |
| 965 | dst = VORRQ(dst, tmp); |
| 966 | return dst; |
| 967 | } |
| 968 | |
| 969 | if (ctype == compare_match1i) |
| 970 | dst = VORRQ(dst, cmp2); |
| 971 | dst = VCEQQ(dst, cmp1); |
| 972 | return dst; |
| 973 | } |
| 974 | |
| 975 | static SLJIT_INLINE sljit_u32 max_fast_forward_char_pair_offset(void) |
| 976 | { |
| 977 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 978 | return 15; |
| 979 | #elif PCRE2_CODE_UNIT_WIDTH == 16 |
| 980 | return 7; |
| 981 | #elif PCRE2_CODE_UNIT_WIDTH == 32 |
| 982 | return 3; |
| 983 | #else |
| 984 | #error "Unsupported unit width" |
| 985 | #endif |
| 986 | } |
| 987 | |
| 988 | /* ARM doesn't have a shift left across lanes. */ |
| 989 | static SLJIT_INLINE vect_t shift_left_n_lanes(vect_t a, sljit_u8 n) |
| 990 | { |
| 991 | vect_t zero = VDUPQ(0); |
| 992 | SLJIT_ASSERT(0 < n && n < VECTOR_FACTOR); |
| 993 | /* VEXTQ takes an immediate as last argument. */ |
| 994 | #define C(X) case X: return VEXTQ(zero, a, VECTOR_FACTOR - X); |
| 995 | switch (n) |
| 996 | { |
| 997 | C(1); C(2); C(3); |
| 998 | #if PCRE2_CODE_UNIT_WIDTH != 32 |
| 999 | C(4); C(5); C(6); C(7); |
| 1000 | # if PCRE2_CODE_UNIT_WIDTH != 16 |
| 1001 | C(8); C(9); C(10); C(11); C(12); C(13); C(14); C(15); |
| 1002 | # endif |
| 1003 | #endif |
| 1004 | default: |
| 1005 | /* Based on the ASSERT(0 < n && n < VECTOR_FACTOR) above, this won't |
| 1006 | happen. The return is still here for compilers to not warn. */ |
| 1007 | return a; |
| 1008 | } |
| 1009 | } |
| 1010 | |
| 1011 | #define FFCPS |
| 1012 | #define FFCPS_DIFF1 |
| 1013 | #define FFCPS_CHAR1A2A |
| 1014 | |
| 1015 | #define FFCPS_0 |
| 1016 | #include "pcre2_jit_neon_inc.h" |
| 1017 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 1018 | # define FF_UTF |
| 1019 | # include "pcre2_jit_neon_inc.h" |
| 1020 | # undef FF_UTF |
| 1021 | #endif |
| 1022 | #undef FFCPS_0 |
| 1023 | |
| 1024 | #undef FFCPS_CHAR1A2A |
| 1025 | |
| 1026 | #define FFCPS_1 |
| 1027 | #include "pcre2_jit_neon_inc.h" |
| 1028 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 1029 | # define FF_UTF |
| 1030 | # include "pcre2_jit_neon_inc.h" |
| 1031 | # undef FF_UTF |
| 1032 | #endif |
| 1033 | #undef FFCPS_1 |
| 1034 | |
| 1035 | #undef FFCPS_DIFF1 |
| 1036 | |
| 1037 | #define FFCPS_DEFAULT |
| 1038 | #include "pcre2_jit_neon_inc.h" |
| 1039 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 1040 | # define FF_UTF |
| 1041 | # include "pcre2_jit_neon_inc.h" |
| 1042 | # undef FF_UTF |
| 1043 | #endif |
| 1044 | #undef FFCPS |
| 1045 | |
| 1046 | #define JIT_HAS_FAST_FORWARD_CHAR_PAIR_SIMD 1 |
| 1047 | |
| 1048 | static void fast_forward_char_pair_simd(compiler_common *common, sljit_s32 offs1, |
| 1049 | PCRE2_UCHAR char1a, PCRE2_UCHAR char1b, sljit_s32 offs2, PCRE2_UCHAR char2a, PCRE2_UCHAR char2b) |
| 1050 | { |
| 1051 | DEFINE_COMPILER; |
| 1052 | sljit_u32 diff = IN_UCHARS(offs1 - offs2); |
| 1053 | struct sljit_jump *partial_quit; |
| 1054 | int_char ic; |
| 1055 | SLJIT_ASSERT(common->mode == PCRE2_JIT_COMPLETE && offs1 > offs2); |
| 1056 | SLJIT_ASSERT(diff <= IN_UCHARS(max_fast_forward_char_pair_offset())); |
| 1057 | SLJIT_ASSERT(compiler->scratches == 5); |
| 1058 | |
| 1059 | /* Save temporary register STR_PTR. */ |
| 1060 | OP1(SLJIT_MOV, SLJIT_MEM1(SLJIT_SP), LOCALS0, STR_PTR, 0); |
| 1061 | |
| 1062 | /* Prepare arguments for the function call. */ |
| 1063 | if (common->match_end_ptr == 0) |
| 1064 | OP1(SLJIT_MOV, SLJIT_R0, 0, STR_END, 0); |
| 1065 | else |
| 1066 | { |
| 1067 | OP1(SLJIT_MOV, SLJIT_R0, 0, SLJIT_MEM1(SLJIT_SP), common->match_end_ptr); |
| 1068 | OP2(SLJIT_ADD, SLJIT_R0, 0, SLJIT_R0, 0, SLJIT_IMM, IN_UCHARS(offs1 + 1)); |
| 1069 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame] | 1070 | OP2U(SLJIT_SUB | SLJIT_SET_LESS, STR_END, 0, SLJIT_R0, 0); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 1071 | CMOV(SLJIT_LESS, SLJIT_R0, STR_END, 0); |
| 1072 | } |
| 1073 | |
| 1074 | OP1(SLJIT_MOV, SLJIT_R1, 0, STR_PTR, 0); |
| 1075 | OP1(SLJIT_MOV_S32, SLJIT_R2, 0, SLJIT_IMM, offs1); |
| 1076 | OP1(SLJIT_MOV_S32, SLJIT_R3, 0, SLJIT_IMM, offs2); |
| 1077 | ic.c.c1 = char1a; |
| 1078 | ic.c.c2 = char1b; |
| 1079 | ic.c.c3 = char2a; |
| 1080 | ic.c.c4 = char2b; |
| 1081 | OP1(SLJIT_MOV_U32, SLJIT_R4, 0, SLJIT_IMM, ic.x); |
| 1082 | |
| 1083 | if (diff == 1) { |
| 1084 | if (char1a == char1b && char2a == char2b) { |
| 1085 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 1086 | if (common->utf) |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame] | 1087 | sljit_emit_icall(compiler, SLJIT_CALL, SLJIT_ARGS4(W, W, W, W, W), |
| 1088 | SLJIT_IMM, SLJIT_FUNC_ADDR(ffcps_0_utf)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 1089 | else |
| 1090 | #endif |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame] | 1091 | sljit_emit_icall(compiler, SLJIT_CALL, SLJIT_ARGS4(W, W, W, W, W), |
| 1092 | SLJIT_IMM, SLJIT_FUNC_ADDR(ffcps_0)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 1093 | } else { |
| 1094 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 1095 | if (common->utf) |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame] | 1096 | sljit_emit_icall(compiler, SLJIT_CALL, SLJIT_ARGS4(W, W, W, W, W), |
| 1097 | SLJIT_IMM, SLJIT_FUNC_ADDR(ffcps_1_utf)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 1098 | else |
| 1099 | #endif |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame] | 1100 | sljit_emit_icall(compiler, SLJIT_CALL, SLJIT_ARGS4(W, W, W, W, W), |
| 1101 | SLJIT_IMM, SLJIT_FUNC_ADDR(ffcps_1)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 1102 | } |
| 1103 | } else { |
| 1104 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 1105 | if (common->utf) |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame] | 1106 | sljit_emit_icall(compiler, SLJIT_CALL, SLJIT_ARGS4(W, W, W, W, W), |
| 1107 | SLJIT_IMM, SLJIT_FUNC_ADDR(ffcps_default_utf)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 1108 | else |
| 1109 | #endif |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame] | 1110 | sljit_emit_icall(compiler, SLJIT_CALL, SLJIT_ARGS4(W, W, W, W, W), |
| 1111 | SLJIT_IMM, SLJIT_FUNC_ADDR(ffcps_default)); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 1112 | } |
| 1113 | |
| 1114 | /* Restore STR_PTR register. */ |
| 1115 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_MEM1(SLJIT_SP), LOCALS0); |
| 1116 | |
| 1117 | /* Check return value. */ |
| 1118 | partial_quit = CMP(SLJIT_EQUAL, SLJIT_RETURN_REG, 0, SLJIT_IMM, 0); |
| 1119 | add_jump(compiler, &common->failed_match, partial_quit); |
| 1120 | |
| 1121 | /* Fast forward STR_PTR to the result of memchr. */ |
| 1122 | OP1(SLJIT_MOV, STR_PTR, 0, SLJIT_RETURN_REG, 0); |
| 1123 | |
| 1124 | JUMPHERE(partial_quit); |
| 1125 | } |
| 1126 | |
| 1127 | #endif /* SLJIT_CONFIG_ARM_64 && SLJIT_CONFIG_ARM_64 */ |
| 1128 | |
| 1129 | #if (defined SLJIT_CONFIG_S390X && SLJIT_CONFIG_S390X) |
| 1130 | |
| 1131 | #if PCRE2_CODE_UNIT_WIDTH == 8 |
| 1132 | #define VECTOR_ELEMENT_SIZE 0 |
| 1133 | #elif PCRE2_CODE_UNIT_WIDTH == 16 |
| 1134 | #define VECTOR_ELEMENT_SIZE 1 |
| 1135 | #elif PCRE2_CODE_UNIT_WIDTH == 32 |
| 1136 | #define VECTOR_ELEMENT_SIZE 2 |
| 1137 | #else |
| 1138 | #error "Unsupported unit width" |
| 1139 | #endif |
| 1140 | |
| 1141 | static void load_from_mem_vector(struct sljit_compiler *compiler, BOOL vlbb, sljit_s32 dst_vreg, |
| 1142 | sljit_s32 base_reg, sljit_s32 index_reg) |
| 1143 | { |
| 1144 | sljit_u16 instruction[3]; |
| 1145 | |
| 1146 | instruction[0] = (sljit_u16)(0xe700 | (dst_vreg << 4) | index_reg); |
| 1147 | instruction[1] = (sljit_u16)(base_reg << 12); |
| 1148 | instruction[2] = (sljit_u16)((0x8 << 8) | (vlbb ? 0x07 : 0x06)); |
| 1149 | |
| 1150 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1151 | } |
| 1152 | |
| 1153 | #if PCRE2_CODE_UNIT_WIDTH == 32 |
| 1154 | |
| 1155 | static void replicate_imm_vector(struct sljit_compiler *compiler, int step, sljit_s32 dst_vreg, |
| 1156 | PCRE2_UCHAR chr, sljit_s32 tmp_general_reg) |
| 1157 | { |
| 1158 | sljit_u16 instruction[3]; |
| 1159 | |
| 1160 | SLJIT_ASSERT(step >= 0 && step <= 1); |
| 1161 | |
| 1162 | if (chr < 0x7fff) |
| 1163 | { |
| 1164 | if (step == 1) |
| 1165 | return; |
| 1166 | |
| 1167 | /* VREPI */ |
| 1168 | instruction[0] = (sljit_u16)(0xe700 | (dst_vreg << 4)); |
| 1169 | instruction[1] = (sljit_u16)chr; |
| 1170 | instruction[2] = (sljit_u16)((VECTOR_ELEMENT_SIZE << 12) | (0x8 << 8) | 0x45); |
| 1171 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1172 | return; |
| 1173 | } |
| 1174 | |
| 1175 | if (step == 0) |
| 1176 | { |
| 1177 | OP1(SLJIT_MOV, tmp_general_reg, 0, SLJIT_IMM, chr); |
| 1178 | |
| 1179 | /* VLVG */ |
| 1180 | instruction[0] = (sljit_u16)(0xe700 | (dst_vreg << 4) | sljit_get_register_index(tmp_general_reg)); |
| 1181 | instruction[1] = 0; |
| 1182 | instruction[2] = (sljit_u16)((VECTOR_ELEMENT_SIZE << 12) | (0x8 << 8) | 0x22); |
| 1183 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1184 | return; |
| 1185 | } |
| 1186 | |
| 1187 | /* VREP */ |
| 1188 | instruction[0] = (sljit_u16)(0xe700 | (dst_vreg << 4) | dst_vreg); |
| 1189 | instruction[1] = 0; |
| 1190 | instruction[2] = (sljit_u16)((VECTOR_ELEMENT_SIZE << 12) | (0xc << 8) | 0x4d); |
| 1191 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1192 | } |
| 1193 | |
| 1194 | #endif |
| 1195 | |
| 1196 | static void fast_forward_char_pair_sse2_compare(struct sljit_compiler *compiler, vector_compare_type compare_type, |
| 1197 | int step, sljit_s32 dst_ind, sljit_s32 cmp1_ind, sljit_s32 cmp2_ind, sljit_s32 tmp_ind) |
| 1198 | { |
| 1199 | sljit_u16 instruction[3]; |
| 1200 | |
| 1201 | SLJIT_ASSERT(step >= 0 && step <= 2); |
| 1202 | |
| 1203 | if (step == 1) |
| 1204 | { |
| 1205 | /* VCEQ */ |
| 1206 | instruction[0] = (sljit_u16)(0xe700 | (dst_ind << 4) | dst_ind); |
| 1207 | instruction[1] = (sljit_u16)(cmp1_ind << 12); |
| 1208 | instruction[2] = (sljit_u16)((VECTOR_ELEMENT_SIZE << 12) | (0xe << 8) | 0xf8); |
| 1209 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1210 | return; |
| 1211 | } |
| 1212 | |
| 1213 | if (compare_type != vector_compare_match2) |
| 1214 | { |
| 1215 | if (step == 0 && compare_type == vector_compare_match1i) |
| 1216 | { |
| 1217 | /* VO */ |
| 1218 | instruction[0] = (sljit_u16)(0xe700 | (dst_ind << 4) | dst_ind); |
| 1219 | instruction[1] = (sljit_u16)(cmp2_ind << 12); |
| 1220 | instruction[2] = (sljit_u16)((0xe << 8) | 0x6a); |
| 1221 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1222 | } |
| 1223 | return; |
| 1224 | } |
| 1225 | |
| 1226 | switch (step) |
| 1227 | { |
| 1228 | case 0: |
| 1229 | /* VCEQ */ |
| 1230 | instruction[0] = (sljit_u16)(0xe700 | (tmp_ind << 4) | dst_ind); |
| 1231 | instruction[1] = (sljit_u16)(cmp2_ind << 12); |
| 1232 | instruction[2] = (sljit_u16)((VECTOR_ELEMENT_SIZE << 12) | (0xe << 8) | 0xf8); |
| 1233 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1234 | return; |
| 1235 | |
| 1236 | case 2: |
| 1237 | /* VO */ |
| 1238 | instruction[0] = (sljit_u16)(0xe700 | (dst_ind << 4) | dst_ind); |
| 1239 | instruction[1] = (sljit_u16)(tmp_ind << 12); |
| 1240 | instruction[2] = (sljit_u16)((0xe << 8) | 0x6a); |
| 1241 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1242 | return; |
| 1243 | } |
| 1244 | } |
| 1245 | |
| 1246 | #define JIT_HAS_FAST_FORWARD_CHAR_SIMD 1 |
| 1247 | |
| 1248 | static void fast_forward_char_simd(compiler_common *common, PCRE2_UCHAR char1, PCRE2_UCHAR char2, sljit_s32 offset) |
| 1249 | { |
| 1250 | DEFINE_COMPILER; |
| 1251 | sljit_u16 instruction[3]; |
| 1252 | struct sljit_label *start; |
| 1253 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 1254 | struct sljit_label *restart; |
| 1255 | #endif |
| 1256 | struct sljit_jump *quit; |
| 1257 | struct sljit_jump *partial_quit[2]; |
| 1258 | vector_compare_type compare_type = vector_compare_match1; |
| 1259 | sljit_s32 tmp1_reg_ind = sljit_get_register_index(TMP1); |
| 1260 | sljit_s32 str_ptr_reg_ind = sljit_get_register_index(STR_PTR); |
| 1261 | sljit_s32 data_ind = 0; |
| 1262 | sljit_s32 tmp_ind = 1; |
| 1263 | sljit_s32 cmp1_ind = 2; |
| 1264 | sljit_s32 cmp2_ind = 3; |
| 1265 | sljit_s32 zero_ind = 4; |
| 1266 | sljit_u32 bit = 0; |
| 1267 | int i; |
| 1268 | |
| 1269 | SLJIT_UNUSED_ARG(offset); |
| 1270 | |
| 1271 | if (char1 != char2) |
| 1272 | { |
| 1273 | bit = char1 ^ char2; |
| 1274 | compare_type = vector_compare_match1i; |
| 1275 | |
| 1276 | if (!is_powerof2(bit)) |
| 1277 | { |
| 1278 | bit = 0; |
| 1279 | compare_type = vector_compare_match2; |
| 1280 | } |
| 1281 | } |
| 1282 | |
| 1283 | partial_quit[0] = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0); |
| 1284 | if (common->mode == PCRE2_JIT_COMPLETE) |
| 1285 | add_jump(compiler, &common->failed_match, partial_quit[0]); |
| 1286 | |
| 1287 | /* First part (unaligned start) */ |
| 1288 | |
| 1289 | OP2(SLJIT_ADD, TMP2, 0, STR_PTR, 0, SLJIT_IMM, 16); |
| 1290 | |
| 1291 | #if PCRE2_CODE_UNIT_WIDTH != 32 |
| 1292 | |
| 1293 | /* VREPI */ |
| 1294 | instruction[0] = (sljit_u16)(0xe700 | (cmp1_ind << 4)); |
| 1295 | instruction[1] = (sljit_u16)(char1 | bit); |
| 1296 | instruction[2] = (sljit_u16)((VECTOR_ELEMENT_SIZE << 12) | (0x8 << 8) | 0x45); |
| 1297 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1298 | |
| 1299 | if (char1 != char2) |
| 1300 | { |
| 1301 | /* VREPI */ |
| 1302 | instruction[0] = (sljit_u16)(0xe700 | (cmp2_ind << 4)); |
| 1303 | instruction[1] = (sljit_u16)(bit != 0 ? bit : char2); |
| 1304 | /* instruction[2] = (sljit_u16)((VECTOR_ELEMENT_SIZE << 12) | (0x8 << 8) | 0x45); */ |
| 1305 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1306 | } |
| 1307 | |
| 1308 | #else /* PCRE2_CODE_UNIT_WIDTH == 32 */ |
| 1309 | |
| 1310 | for (int i = 0; i < 2; i++) |
| 1311 | { |
| 1312 | replicate_imm_vector(compiler, i, cmp1_ind, char1 | bit, TMP1); |
| 1313 | |
| 1314 | if (char1 != char2) |
| 1315 | replicate_imm_vector(compiler, i, cmp2_ind, bit != 0 ? bit : char2, TMP1); |
| 1316 | } |
| 1317 | |
| 1318 | #endif /* PCRE2_CODE_UNIT_WIDTH != 32 */ |
| 1319 | |
| 1320 | if (compare_type == vector_compare_match2) |
| 1321 | { |
| 1322 | /* VREPI */ |
| 1323 | instruction[0] = (sljit_u16)(0xe700 | (zero_ind << 4)); |
| 1324 | instruction[1] = 0; |
| 1325 | instruction[2] = (sljit_u16)((0x8 << 8) | 0x45); |
| 1326 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1327 | } |
| 1328 | |
| 1329 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 1330 | restart = LABEL(); |
| 1331 | #endif |
| 1332 | |
| 1333 | load_from_mem_vector(compiler, TRUE, data_ind, str_ptr_reg_ind, 0); |
| 1334 | OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, ~15); |
| 1335 | |
| 1336 | if (compare_type != vector_compare_match2) |
| 1337 | { |
| 1338 | if (compare_type == vector_compare_match1i) |
| 1339 | fast_forward_char_pair_sse2_compare(compiler, compare_type, 0, data_ind, cmp1_ind, cmp2_ind, tmp_ind); |
| 1340 | |
| 1341 | /* VFEE */ |
| 1342 | instruction[0] = (sljit_u16)(0xe700 | (data_ind << 4) | data_ind); |
| 1343 | instruction[1] = (sljit_u16)((cmp1_ind << 12) | (1 << 4)); |
| 1344 | instruction[2] = (sljit_u16)((VECTOR_ELEMENT_SIZE << 12) | (0xe << 8) | 0x80); |
| 1345 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1346 | } |
| 1347 | else |
| 1348 | { |
| 1349 | for (i = 0; i < 3; i++) |
| 1350 | fast_forward_char_pair_sse2_compare(compiler, compare_type, i, data_ind, cmp1_ind, cmp2_ind, tmp_ind); |
| 1351 | |
| 1352 | /* VFENE */ |
| 1353 | instruction[0] = (sljit_u16)(0xe700 | (data_ind << 4) | data_ind); |
| 1354 | instruction[1] = (sljit_u16)((zero_ind << 12) | (1 << 4)); |
| 1355 | instruction[2] = (sljit_u16)((0xe << 8) | 0x81); |
| 1356 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1357 | } |
| 1358 | |
| 1359 | /* VLGVB */ |
| 1360 | instruction[0] = (sljit_u16)(0xe700 | (tmp1_reg_ind << 4) | data_ind); |
| 1361 | instruction[1] = 7; |
| 1362 | instruction[2] = (sljit_u16)((0x4 << 8) | 0x21); |
| 1363 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1364 | |
| 1365 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0); |
| 1366 | quit = CMP(SLJIT_LESS, STR_PTR, 0, TMP2, 0); |
| 1367 | |
| 1368 | OP2(SLJIT_SUB, STR_PTR, 0, TMP2, 0, SLJIT_IMM, 16); |
| 1369 | |
| 1370 | /* Second part (aligned) */ |
| 1371 | start = LABEL(); |
| 1372 | |
| 1373 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, 16); |
| 1374 | |
| 1375 | partial_quit[1] = CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0); |
| 1376 | if (common->mode == PCRE2_JIT_COMPLETE) |
| 1377 | add_jump(compiler, &common->failed_match, partial_quit[1]); |
| 1378 | |
| 1379 | load_from_mem_vector(compiler, TRUE, data_ind, str_ptr_reg_ind, 0); |
| 1380 | |
| 1381 | if (compare_type != vector_compare_match2) |
| 1382 | { |
| 1383 | if (compare_type == vector_compare_match1i) |
| 1384 | fast_forward_char_pair_sse2_compare(compiler, compare_type, 0, data_ind, cmp1_ind, cmp2_ind, tmp_ind); |
| 1385 | |
| 1386 | /* VFEE */ |
| 1387 | instruction[0] = (sljit_u16)(0xe700 | (data_ind << 4) | data_ind); |
| 1388 | instruction[1] = (sljit_u16)((cmp1_ind << 12) | (1 << 4)); |
| 1389 | instruction[2] = (sljit_u16)((VECTOR_ELEMENT_SIZE << 12) | (0xe << 8) | 0x80); |
| 1390 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1391 | } |
| 1392 | else |
| 1393 | { |
| 1394 | for (i = 0; i < 3; i++) |
| 1395 | fast_forward_char_pair_sse2_compare(compiler, compare_type, i, data_ind, cmp1_ind, cmp2_ind, tmp_ind); |
| 1396 | |
| 1397 | /* VFENE */ |
| 1398 | instruction[0] = (sljit_u16)(0xe700 | (data_ind << 4) | data_ind); |
| 1399 | instruction[1] = (sljit_u16)((zero_ind << 12) | (1 << 4)); |
| 1400 | instruction[2] = (sljit_u16)((0xe << 8) | 0x81); |
| 1401 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1402 | } |
| 1403 | |
| 1404 | sljit_set_current_flags(compiler, SLJIT_SET_OVERFLOW); |
| 1405 | JUMPTO(SLJIT_OVERFLOW, start); |
| 1406 | |
| 1407 | /* VLGVB */ |
| 1408 | instruction[0] = (sljit_u16)(0xe700 | (tmp1_reg_ind << 4) | data_ind); |
| 1409 | instruction[1] = 7; |
| 1410 | instruction[2] = (sljit_u16)((0x4 << 8) | 0x21); |
| 1411 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1412 | |
| 1413 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0); |
| 1414 | |
| 1415 | JUMPHERE(quit); |
| 1416 | |
| 1417 | if (common->mode != PCRE2_JIT_COMPLETE) |
| 1418 | { |
| 1419 | JUMPHERE(partial_quit[0]); |
| 1420 | JUMPHERE(partial_quit[1]); |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame] | 1421 | OP2U(SLJIT_SUB | SLJIT_SET_GREATER, STR_PTR, 0, STR_END, 0); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 1422 | CMOV(SLJIT_GREATER, STR_PTR, STR_END, 0); |
| 1423 | } |
| 1424 | else |
| 1425 | add_jump(compiler, &common->failed_match, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); |
| 1426 | |
| 1427 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 1428 | if (common->utf && offset > 0) |
| 1429 | { |
| 1430 | SLJIT_ASSERT(common->mode == PCRE2_JIT_COMPLETE); |
| 1431 | |
| 1432 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-offset)); |
| 1433 | |
| 1434 | quit = jump_if_utf_char_start(compiler, TMP1); |
| 1435 | |
| 1436 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 1437 | add_jump(compiler, &common->failed_match, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); |
| 1438 | |
| 1439 | OP2(SLJIT_ADD, TMP2, 0, STR_PTR, 0, SLJIT_IMM, 16); |
| 1440 | JUMPTO(SLJIT_JUMP, restart); |
| 1441 | |
| 1442 | JUMPHERE(quit); |
| 1443 | } |
| 1444 | #endif |
| 1445 | } |
| 1446 | |
| 1447 | #define JIT_HAS_FAST_REQUESTED_CHAR_SIMD 1 |
| 1448 | |
| 1449 | static jump_list *fast_requested_char_simd(compiler_common *common, PCRE2_UCHAR char1, PCRE2_UCHAR char2) |
| 1450 | { |
| 1451 | DEFINE_COMPILER; |
| 1452 | sljit_u16 instruction[3]; |
| 1453 | struct sljit_label *start; |
| 1454 | struct sljit_jump *quit; |
| 1455 | jump_list *not_found = NULL; |
| 1456 | vector_compare_type compare_type = vector_compare_match1; |
| 1457 | sljit_s32 tmp1_reg_ind = sljit_get_register_index(TMP1); |
| 1458 | sljit_s32 tmp3_reg_ind = sljit_get_register_index(TMP3); |
| 1459 | sljit_s32 data_ind = 0; |
| 1460 | sljit_s32 tmp_ind = 1; |
| 1461 | sljit_s32 cmp1_ind = 2; |
| 1462 | sljit_s32 cmp2_ind = 3; |
| 1463 | sljit_s32 zero_ind = 4; |
| 1464 | sljit_u32 bit = 0; |
| 1465 | int i; |
| 1466 | |
| 1467 | if (char1 != char2) |
| 1468 | { |
| 1469 | bit = char1 ^ char2; |
| 1470 | compare_type = vector_compare_match1i; |
| 1471 | |
| 1472 | if (!is_powerof2(bit)) |
| 1473 | { |
| 1474 | bit = 0; |
| 1475 | compare_type = vector_compare_match2; |
| 1476 | } |
| 1477 | } |
| 1478 | |
| 1479 | add_jump(compiler, ¬_found, CMP(SLJIT_GREATER_EQUAL, TMP1, 0, STR_END, 0)); |
| 1480 | |
| 1481 | /* First part (unaligned start) */ |
| 1482 | |
| 1483 | OP2(SLJIT_ADD, TMP2, 0, TMP1, 0, SLJIT_IMM, 16); |
| 1484 | |
| 1485 | #if PCRE2_CODE_UNIT_WIDTH != 32 |
| 1486 | |
| 1487 | /* VREPI */ |
| 1488 | instruction[0] = (sljit_u16)(0xe700 | (cmp1_ind << 4)); |
| 1489 | instruction[1] = (sljit_u16)(char1 | bit); |
| 1490 | instruction[2] = (sljit_u16)((VECTOR_ELEMENT_SIZE << 12) | (0x8 << 8) | 0x45); |
| 1491 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1492 | |
| 1493 | if (char1 != char2) |
| 1494 | { |
| 1495 | /* VREPI */ |
| 1496 | instruction[0] = (sljit_u16)(0xe700 | (cmp2_ind << 4)); |
| 1497 | instruction[1] = (sljit_u16)(bit != 0 ? bit : char2); |
| 1498 | /* instruction[2] = (sljit_u16)((VECTOR_ELEMENT_SIZE << 12) | (0x8 << 8) | 0x45); */ |
| 1499 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1500 | } |
| 1501 | |
| 1502 | #else /* PCRE2_CODE_UNIT_WIDTH == 32 */ |
| 1503 | |
| 1504 | for (int i = 0; i < 2; i++) |
| 1505 | { |
| 1506 | replicate_imm_vector(compiler, i, cmp1_ind, char1 | bit, TMP3); |
| 1507 | |
| 1508 | if (char1 != char2) |
| 1509 | replicate_imm_vector(compiler, i, cmp2_ind, bit != 0 ? bit : char2, TMP3); |
| 1510 | } |
| 1511 | |
| 1512 | #endif /* PCRE2_CODE_UNIT_WIDTH != 32 */ |
| 1513 | |
| 1514 | if (compare_type == vector_compare_match2) |
| 1515 | { |
| 1516 | /* VREPI */ |
| 1517 | instruction[0] = (sljit_u16)(0xe700 | (zero_ind << 4)); |
| 1518 | instruction[1] = 0; |
| 1519 | instruction[2] = (sljit_u16)((0x8 << 8) | 0x45); |
| 1520 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1521 | } |
| 1522 | |
| 1523 | load_from_mem_vector(compiler, TRUE, data_ind, tmp1_reg_ind, 0); |
| 1524 | OP2(SLJIT_AND, TMP2, 0, TMP2, 0, SLJIT_IMM, ~15); |
| 1525 | |
| 1526 | if (compare_type != vector_compare_match2) |
| 1527 | { |
| 1528 | if (compare_type == vector_compare_match1i) |
| 1529 | fast_forward_char_pair_sse2_compare(compiler, compare_type, 0, data_ind, cmp1_ind, cmp2_ind, tmp_ind); |
| 1530 | |
| 1531 | /* VFEE */ |
| 1532 | instruction[0] = (sljit_u16)(0xe700 | (data_ind << 4) | data_ind); |
| 1533 | instruction[1] = (sljit_u16)((cmp1_ind << 12) | (1 << 4)); |
| 1534 | instruction[2] = (sljit_u16)((VECTOR_ELEMENT_SIZE << 12) | (0xe << 8) | 0x80); |
| 1535 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1536 | } |
| 1537 | else |
| 1538 | { |
| 1539 | for (i = 0; i < 3; i++) |
| 1540 | fast_forward_char_pair_sse2_compare(compiler, compare_type, i, data_ind, cmp1_ind, cmp2_ind, tmp_ind); |
| 1541 | |
| 1542 | /* VFENE */ |
| 1543 | instruction[0] = (sljit_u16)(0xe700 | (data_ind << 4) | data_ind); |
| 1544 | instruction[1] = (sljit_u16)((zero_ind << 12) | (1 << 4)); |
| 1545 | instruction[2] = (sljit_u16)((0xe << 8) | 0x81); |
| 1546 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1547 | } |
| 1548 | |
| 1549 | /* VLGVB */ |
| 1550 | instruction[0] = (sljit_u16)(0xe700 | (tmp3_reg_ind << 4) | data_ind); |
| 1551 | instruction[1] = 7; |
| 1552 | instruction[2] = (sljit_u16)((0x4 << 8) | 0x21); |
| 1553 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1554 | |
| 1555 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, TMP3, 0); |
| 1556 | quit = CMP(SLJIT_LESS, TMP1, 0, TMP2, 0); |
| 1557 | |
| 1558 | OP2(SLJIT_SUB, TMP1, 0, TMP2, 0, SLJIT_IMM, 16); |
| 1559 | |
| 1560 | /* Second part (aligned) */ |
| 1561 | start = LABEL(); |
| 1562 | |
| 1563 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, 16); |
| 1564 | |
| 1565 | add_jump(compiler, ¬_found, CMP(SLJIT_GREATER_EQUAL, TMP1, 0, STR_END, 0)); |
| 1566 | |
| 1567 | load_from_mem_vector(compiler, TRUE, data_ind, tmp1_reg_ind, 0); |
| 1568 | |
| 1569 | if (compare_type != vector_compare_match2) |
| 1570 | { |
| 1571 | if (compare_type == vector_compare_match1i) |
| 1572 | fast_forward_char_pair_sse2_compare(compiler, compare_type, 0, data_ind, cmp1_ind, cmp2_ind, tmp_ind); |
| 1573 | |
| 1574 | /* VFEE */ |
| 1575 | instruction[0] = (sljit_u16)(0xe700 | (data_ind << 4) | data_ind); |
| 1576 | instruction[1] = (sljit_u16)((cmp1_ind << 12) | (1 << 4)); |
| 1577 | instruction[2] = (sljit_u16)((VECTOR_ELEMENT_SIZE << 12) | (0xe << 8) | 0x80); |
| 1578 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1579 | } |
| 1580 | else |
| 1581 | { |
| 1582 | for (i = 0; i < 3; i++) |
| 1583 | fast_forward_char_pair_sse2_compare(compiler, compare_type, i, data_ind, cmp1_ind, cmp2_ind, tmp_ind); |
| 1584 | |
| 1585 | /* VFENE */ |
| 1586 | instruction[0] = (sljit_u16)(0xe700 | (data_ind << 4) | data_ind); |
| 1587 | instruction[1] = (sljit_u16)((zero_ind << 12) | (1 << 4)); |
| 1588 | instruction[2] = (sljit_u16)((0xe << 8) | 0x81); |
| 1589 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1590 | } |
| 1591 | |
| 1592 | sljit_set_current_flags(compiler, SLJIT_SET_OVERFLOW); |
| 1593 | JUMPTO(SLJIT_OVERFLOW, start); |
| 1594 | |
| 1595 | /* VLGVB */ |
| 1596 | instruction[0] = (sljit_u16)(0xe700 | (tmp3_reg_ind << 4) | data_ind); |
| 1597 | instruction[1] = 7; |
| 1598 | instruction[2] = (sljit_u16)((0x4 << 8) | 0x21); |
| 1599 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1600 | |
| 1601 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, TMP3, 0); |
| 1602 | |
| 1603 | JUMPHERE(quit); |
| 1604 | add_jump(compiler, ¬_found, CMP(SLJIT_GREATER_EQUAL, TMP1, 0, STR_END, 0)); |
| 1605 | |
| 1606 | return not_found; |
| 1607 | } |
| 1608 | |
| 1609 | #define JIT_HAS_FAST_FORWARD_CHAR_PAIR_SIMD 1 |
| 1610 | |
| 1611 | static void fast_forward_char_pair_simd(compiler_common *common, sljit_s32 offs1, |
| 1612 | PCRE2_UCHAR char1a, PCRE2_UCHAR char1b, sljit_s32 offs2, PCRE2_UCHAR char2a, PCRE2_UCHAR char2b) |
| 1613 | { |
| 1614 | DEFINE_COMPILER; |
| 1615 | sljit_u16 instruction[3]; |
| 1616 | struct sljit_label *start; |
| 1617 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 1618 | struct sljit_label *restart; |
| 1619 | #endif |
| 1620 | struct sljit_jump *quit; |
| 1621 | struct sljit_jump *jump[2]; |
| 1622 | vector_compare_type compare1_type = vector_compare_match1; |
| 1623 | vector_compare_type compare2_type = vector_compare_match1; |
| 1624 | sljit_u32 bit1 = 0; |
| 1625 | sljit_u32 bit2 = 0; |
| 1626 | sljit_s32 diff = IN_UCHARS(offs2 - offs1); |
| 1627 | sljit_s32 tmp1_reg_ind = sljit_get_register_index(TMP1); |
| 1628 | sljit_s32 tmp2_reg_ind = sljit_get_register_index(TMP2); |
| 1629 | sljit_s32 str_ptr_reg_ind = sljit_get_register_index(STR_PTR); |
| 1630 | sljit_s32 data1_ind = 0; |
| 1631 | sljit_s32 data2_ind = 1; |
| 1632 | sljit_s32 tmp1_ind = 2; |
| 1633 | sljit_s32 tmp2_ind = 3; |
| 1634 | sljit_s32 cmp1a_ind = 4; |
| 1635 | sljit_s32 cmp1b_ind = 5; |
| 1636 | sljit_s32 cmp2a_ind = 6; |
| 1637 | sljit_s32 cmp2b_ind = 7; |
| 1638 | sljit_s32 zero_ind = 8; |
| 1639 | int i; |
| 1640 | |
| 1641 | SLJIT_ASSERT(common->mode == PCRE2_JIT_COMPLETE && offs1 > offs2); |
| 1642 | SLJIT_ASSERT(-diff <= (sljit_s32)IN_UCHARS(max_fast_forward_char_pair_offset())); |
| 1643 | SLJIT_ASSERT(tmp1_reg_ind != 0 && tmp2_reg_ind != 0); |
| 1644 | |
| 1645 | if (char1a != char1b) |
| 1646 | { |
| 1647 | bit1 = char1a ^ char1b; |
| 1648 | compare1_type = vector_compare_match1i; |
| 1649 | |
| 1650 | if (!is_powerof2(bit1)) |
| 1651 | { |
| 1652 | bit1 = 0; |
| 1653 | compare1_type = vector_compare_match2; |
| 1654 | } |
| 1655 | } |
| 1656 | |
| 1657 | if (char2a != char2b) |
| 1658 | { |
| 1659 | bit2 = char2a ^ char2b; |
| 1660 | compare2_type = vector_compare_match1i; |
| 1661 | |
| 1662 | if (!is_powerof2(bit2)) |
| 1663 | { |
| 1664 | bit2 = 0; |
| 1665 | compare2_type = vector_compare_match2; |
| 1666 | } |
| 1667 | } |
| 1668 | |
| 1669 | /* Initialize. */ |
| 1670 | if (common->match_end_ptr != 0) |
| 1671 | { |
| 1672 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_MEM1(SLJIT_SP), common->match_end_ptr); |
| 1673 | OP1(SLJIT_MOV, TMP3, 0, STR_END, 0); |
| 1674 | OP2(SLJIT_ADD, TMP1, 0, TMP1, 0, SLJIT_IMM, IN_UCHARS(offs1 + 1)); |
| 1675 | |
Elliott Hughes | 4e19c8e | 2022-04-15 15:11:02 -0700 | [diff] [blame] | 1676 | OP2U(SLJIT_SUB | SLJIT_SET_LESS, TMP1, 0, STR_END, 0); |
Elliott Hughes | 5b80804 | 2021-10-01 10:56:10 -0700 | [diff] [blame] | 1677 | CMOV(SLJIT_LESS, STR_END, TMP1, 0); |
| 1678 | } |
| 1679 | |
| 1680 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(offs1)); |
| 1681 | add_jump(compiler, &common->failed_match, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); |
| 1682 | OP2(SLJIT_AND, TMP2, 0, STR_PTR, 0, SLJIT_IMM, ~15); |
| 1683 | |
| 1684 | #if PCRE2_CODE_UNIT_WIDTH != 32 |
| 1685 | |
| 1686 | OP2(SLJIT_SUB, TMP1, 0, STR_PTR, 0, SLJIT_IMM, -diff); |
| 1687 | |
| 1688 | /* VREPI */ |
| 1689 | instruction[0] = (sljit_u16)(0xe700 | (cmp1a_ind << 4)); |
| 1690 | instruction[1] = (sljit_u16)(char1a | bit1); |
| 1691 | instruction[2] = (sljit_u16)((VECTOR_ELEMENT_SIZE << 12) | (0x8 << 8) | 0x45); |
| 1692 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1693 | |
| 1694 | if (char1a != char1b) |
| 1695 | { |
| 1696 | /* VREPI */ |
| 1697 | instruction[0] = (sljit_u16)(0xe700 | (cmp1b_ind << 4)); |
| 1698 | instruction[1] = (sljit_u16)(bit1 != 0 ? bit1 : char1b); |
| 1699 | /* instruction[2] = (sljit_u16)((VECTOR_ELEMENT_SIZE << 12) | (0x8 << 8) | 0x45); */ |
| 1700 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1701 | } |
| 1702 | |
| 1703 | /* VREPI */ |
| 1704 | instruction[0] = (sljit_u16)(0xe700 | (cmp2a_ind << 4)); |
| 1705 | instruction[1] = (sljit_u16)(char2a | bit2); |
| 1706 | /* instruction[2] = (sljit_u16)((VECTOR_ELEMENT_SIZE << 12) | (0x8 << 8) | 0x45); */ |
| 1707 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1708 | |
| 1709 | if (char2a != char2b) |
| 1710 | { |
| 1711 | /* VREPI */ |
| 1712 | instruction[0] = (sljit_u16)(0xe700 | (cmp2b_ind << 4)); |
| 1713 | instruction[1] = (sljit_u16)(bit2 != 0 ? bit2 : char2b); |
| 1714 | /* instruction[2] = (sljit_u16)((VECTOR_ELEMENT_SIZE << 12) | (0x8 << 8) | 0x45); */ |
| 1715 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1716 | } |
| 1717 | |
| 1718 | #else /* PCRE2_CODE_UNIT_WIDTH == 32 */ |
| 1719 | |
| 1720 | for (int i = 0; i < 2; i++) |
| 1721 | { |
| 1722 | replicate_imm_vector(compiler, i, cmp1a_ind, char1a | bit1, TMP1); |
| 1723 | |
| 1724 | if (char1a != char1b) |
| 1725 | replicate_imm_vector(compiler, i, cmp1b_ind, bit1 != 0 ? bit1 : char1b, TMP1); |
| 1726 | |
| 1727 | replicate_imm_vector(compiler, i, cmp2a_ind, char2a | bit2, TMP1); |
| 1728 | |
| 1729 | if (char2a != char2b) |
| 1730 | replicate_imm_vector(compiler, i, cmp2b_ind, bit2 != 0 ? bit2 : char2b, TMP1); |
| 1731 | } |
| 1732 | |
| 1733 | OP2(SLJIT_SUB, TMP1, 0, STR_PTR, 0, SLJIT_IMM, -diff); |
| 1734 | |
| 1735 | #endif /* PCRE2_CODE_UNIT_WIDTH != 32 */ |
| 1736 | |
| 1737 | /* VREPI */ |
| 1738 | instruction[0] = (sljit_u16)(0xe700 | (zero_ind << 4)); |
| 1739 | instruction[1] = 0; |
| 1740 | instruction[2] = (sljit_u16)((0x8 << 8) | 0x45); |
| 1741 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1742 | |
| 1743 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 1744 | restart = LABEL(); |
| 1745 | #endif |
| 1746 | |
| 1747 | jump[0] = CMP(SLJIT_LESS, TMP1, 0, TMP2, 0); |
| 1748 | load_from_mem_vector(compiler, TRUE, data2_ind, tmp1_reg_ind, 0); |
| 1749 | jump[1] = JUMP(SLJIT_JUMP); |
| 1750 | JUMPHERE(jump[0]); |
| 1751 | load_from_mem_vector(compiler, FALSE, data2_ind, tmp1_reg_ind, 0); |
| 1752 | JUMPHERE(jump[1]); |
| 1753 | |
| 1754 | load_from_mem_vector(compiler, TRUE, data1_ind, str_ptr_reg_ind, 0); |
| 1755 | OP2(SLJIT_ADD, TMP2, 0, TMP2, 0, SLJIT_IMM, 16); |
| 1756 | |
| 1757 | for (i = 0; i < 3; i++) |
| 1758 | { |
| 1759 | fast_forward_char_pair_sse2_compare(compiler, compare1_type, i, data1_ind, cmp1a_ind, cmp1b_ind, tmp1_ind); |
| 1760 | fast_forward_char_pair_sse2_compare(compiler, compare2_type, i, data2_ind, cmp2a_ind, cmp2b_ind, tmp2_ind); |
| 1761 | } |
| 1762 | |
| 1763 | /* VN */ |
| 1764 | instruction[0] = (sljit_u16)(0xe700 | (data1_ind << 4) | data1_ind); |
| 1765 | instruction[1] = (sljit_u16)(data2_ind << 12); |
| 1766 | instruction[2] = (sljit_u16)((0xe << 8) | 0x68); |
| 1767 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1768 | |
| 1769 | /* VFENE */ |
| 1770 | instruction[0] = (sljit_u16)(0xe700 | (data1_ind << 4) | data1_ind); |
| 1771 | instruction[1] = (sljit_u16)((zero_ind << 12) | (1 << 4)); |
| 1772 | instruction[2] = (sljit_u16)((0xe << 8) | 0x81); |
| 1773 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1774 | |
| 1775 | /* VLGVB */ |
| 1776 | instruction[0] = (sljit_u16)(0xe700 | (tmp1_reg_ind << 4) | data1_ind); |
| 1777 | instruction[1] = 7; |
| 1778 | instruction[2] = (sljit_u16)((0x4 << 8) | 0x21); |
| 1779 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1780 | |
| 1781 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP1, 0); |
| 1782 | quit = CMP(SLJIT_LESS, STR_PTR, 0, TMP2, 0); |
| 1783 | |
| 1784 | OP2(SLJIT_SUB, STR_PTR, 0, TMP2, 0, SLJIT_IMM, 16); |
| 1785 | OP1(SLJIT_MOV, TMP1, 0, SLJIT_IMM, diff); |
| 1786 | |
| 1787 | /* Main loop. */ |
| 1788 | start = LABEL(); |
| 1789 | |
| 1790 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, 16); |
| 1791 | add_jump(compiler, &common->failed_match, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); |
| 1792 | |
| 1793 | load_from_mem_vector(compiler, FALSE, data1_ind, str_ptr_reg_ind, 0); |
| 1794 | load_from_mem_vector(compiler, FALSE, data2_ind, str_ptr_reg_ind, tmp1_reg_ind); |
| 1795 | |
| 1796 | for (i = 0; i < 3; i++) |
| 1797 | { |
| 1798 | fast_forward_char_pair_sse2_compare(compiler, compare1_type, i, data1_ind, cmp1a_ind, cmp1b_ind, tmp1_ind); |
| 1799 | fast_forward_char_pair_sse2_compare(compiler, compare2_type, i, data2_ind, cmp2a_ind, cmp2b_ind, tmp2_ind); |
| 1800 | } |
| 1801 | |
| 1802 | /* VN */ |
| 1803 | instruction[0] = (sljit_u16)(0xe700 | (data1_ind << 4) | data1_ind); |
| 1804 | instruction[1] = (sljit_u16)(data2_ind << 12); |
| 1805 | instruction[2] = (sljit_u16)((0xe << 8) | 0x68); |
| 1806 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1807 | |
| 1808 | /* VFENE */ |
| 1809 | instruction[0] = (sljit_u16)(0xe700 | (data1_ind << 4) | data1_ind); |
| 1810 | instruction[1] = (sljit_u16)((zero_ind << 12) | (1 << 4)); |
| 1811 | instruction[2] = (sljit_u16)((0xe << 8) | 0x81); |
| 1812 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1813 | |
| 1814 | sljit_set_current_flags(compiler, SLJIT_SET_OVERFLOW); |
| 1815 | JUMPTO(SLJIT_OVERFLOW, start); |
| 1816 | |
| 1817 | /* VLGVB */ |
| 1818 | instruction[0] = (sljit_u16)(0xe700 | (tmp2_reg_ind << 4) | data1_ind); |
| 1819 | instruction[1] = 7; |
| 1820 | instruction[2] = (sljit_u16)((0x4 << 8) | 0x21); |
| 1821 | sljit_emit_op_custom(compiler, instruction, 6); |
| 1822 | |
| 1823 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, TMP2, 0); |
| 1824 | |
| 1825 | JUMPHERE(quit); |
| 1826 | |
| 1827 | add_jump(compiler, &common->failed_match, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); |
| 1828 | |
| 1829 | #if defined SUPPORT_UNICODE && PCRE2_CODE_UNIT_WIDTH != 32 |
| 1830 | if (common->utf) |
| 1831 | { |
| 1832 | SLJIT_ASSERT(common->mode == PCRE2_JIT_COMPLETE); |
| 1833 | |
| 1834 | OP1(MOV_UCHAR, TMP1, 0, SLJIT_MEM1(STR_PTR), IN_UCHARS(-offs1)); |
| 1835 | |
| 1836 | quit = jump_if_utf_char_start(compiler, TMP1); |
| 1837 | |
| 1838 | OP2(SLJIT_ADD, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(1)); |
| 1839 | add_jump(compiler, &common->failed_match, CMP(SLJIT_GREATER_EQUAL, STR_PTR, 0, STR_END, 0)); |
| 1840 | |
| 1841 | /* TMP1 contains diff. */ |
| 1842 | OP2(SLJIT_AND, TMP2, 0, STR_PTR, 0, SLJIT_IMM, ~15); |
| 1843 | OP2(SLJIT_SUB, TMP1, 0, STR_PTR, 0, SLJIT_IMM, -diff); |
| 1844 | JUMPTO(SLJIT_JUMP, restart); |
| 1845 | |
| 1846 | JUMPHERE(quit); |
| 1847 | } |
| 1848 | #endif |
| 1849 | |
| 1850 | OP2(SLJIT_SUB, STR_PTR, 0, STR_PTR, 0, SLJIT_IMM, IN_UCHARS(offs1)); |
| 1851 | |
| 1852 | if (common->match_end_ptr != 0) |
| 1853 | OP1(SLJIT_MOV, STR_END, 0, TMP3, 0); |
| 1854 | } |
| 1855 | |
| 1856 | #endif /* SLJIT_CONFIG_S390X */ |
| 1857 | |
| 1858 | #endif /* !SUPPORT_VALGRIND */ |