Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1 | // Copyright 2012 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #include "src/regexp/regexp-macro-assembler-tracer.h" |
| 6 | |
| 7 | #include "src/ast/ast.h" |
| 8 | |
| 9 | namespace v8 { |
| 10 | namespace internal { |
| 11 | |
| 12 | RegExpMacroAssemblerTracer::RegExpMacroAssemblerTracer( |
| 13 | Isolate* isolate, RegExpMacroAssembler* assembler) |
| 14 | : RegExpMacroAssembler(isolate, assembler->zone()), assembler_(assembler) { |
| 15 | unsigned int type = assembler->Implementation(); |
| 16 | DCHECK(type < 8); |
| 17 | const char* impl_names[] = {"IA32", "ARM", "ARM64", "MIPS", |
| 18 | "PPC", "X64", "X87", "Bytecode"}; |
| 19 | PrintF("RegExpMacroAssembler%s();\n", impl_names[type]); |
| 20 | } |
| 21 | |
| 22 | |
| 23 | RegExpMacroAssemblerTracer::~RegExpMacroAssemblerTracer() { |
| 24 | } |
| 25 | |
| 26 | |
| 27 | void RegExpMacroAssemblerTracer::AbortedCodeGeneration() { |
| 28 | PrintF(" AbortedCodeGeneration\n"); |
| 29 | assembler_->AbortedCodeGeneration(); |
| 30 | } |
| 31 | |
| 32 | |
| 33 | // This is used for printing out debugging information. It makes an integer |
| 34 | // that is closely related to the address of an object. |
| 35 | static int LabelToInt(Label* label) { |
| 36 | return static_cast<int>(reinterpret_cast<intptr_t>(label)); |
| 37 | } |
| 38 | |
| 39 | |
| 40 | void RegExpMacroAssemblerTracer::Bind(Label* label) { |
| 41 | PrintF("label[%08x]: (Bind)\n", LabelToInt(label)); |
| 42 | assembler_->Bind(label); |
| 43 | } |
| 44 | |
| 45 | |
| 46 | void RegExpMacroAssemblerTracer::AdvanceCurrentPosition(int by) { |
| 47 | PrintF(" AdvanceCurrentPosition(by=%d);\n", by); |
| 48 | assembler_->AdvanceCurrentPosition(by); |
| 49 | } |
| 50 | |
| 51 | |
| 52 | void RegExpMacroAssemblerTracer::CheckGreedyLoop(Label* label) { |
| 53 | PrintF(" CheckGreedyLoop(label[%08x]);\n\n", LabelToInt(label)); |
| 54 | assembler_->CheckGreedyLoop(label); |
| 55 | } |
| 56 | |
| 57 | |
| 58 | void RegExpMacroAssemblerTracer::PopCurrentPosition() { |
| 59 | PrintF(" PopCurrentPosition();\n"); |
| 60 | assembler_->PopCurrentPosition(); |
| 61 | } |
| 62 | |
| 63 | |
| 64 | void RegExpMacroAssemblerTracer::PushCurrentPosition() { |
| 65 | PrintF(" PushCurrentPosition();\n"); |
| 66 | assembler_->PushCurrentPosition(); |
| 67 | } |
| 68 | |
| 69 | |
| 70 | void RegExpMacroAssemblerTracer::Backtrack() { |
| 71 | PrintF(" Backtrack();\n"); |
| 72 | assembler_->Backtrack(); |
| 73 | } |
| 74 | |
| 75 | |
| 76 | void RegExpMacroAssemblerTracer::GoTo(Label* label) { |
| 77 | PrintF(" GoTo(label[%08x]);\n\n", LabelToInt(label)); |
| 78 | assembler_->GoTo(label); |
| 79 | } |
| 80 | |
| 81 | |
| 82 | void RegExpMacroAssemblerTracer::PushBacktrack(Label* label) { |
| 83 | PrintF(" PushBacktrack(label[%08x]);\n", LabelToInt(label)); |
| 84 | assembler_->PushBacktrack(label); |
| 85 | } |
| 86 | |
| 87 | |
| 88 | bool RegExpMacroAssemblerTracer::Succeed() { |
| 89 | bool restart = assembler_->Succeed(); |
| 90 | PrintF(" Succeed();%s\n", restart ? " [restart for global match]" : ""); |
| 91 | return restart; |
| 92 | } |
| 93 | |
| 94 | |
| 95 | void RegExpMacroAssemblerTracer::Fail() { |
| 96 | PrintF(" Fail();"); |
| 97 | assembler_->Fail(); |
| 98 | } |
| 99 | |
| 100 | |
| 101 | void RegExpMacroAssemblerTracer::PopRegister(int register_index) { |
| 102 | PrintF(" PopRegister(register=%d);\n", register_index); |
| 103 | assembler_->PopRegister(register_index); |
| 104 | } |
| 105 | |
| 106 | |
| 107 | void RegExpMacroAssemblerTracer::PushRegister( |
| 108 | int register_index, |
| 109 | StackCheckFlag check_stack_limit) { |
| 110 | PrintF(" PushRegister(register=%d, %s);\n", |
| 111 | register_index, |
| 112 | check_stack_limit ? "check stack limit" : ""); |
| 113 | assembler_->PushRegister(register_index, check_stack_limit); |
| 114 | } |
| 115 | |
| 116 | |
| 117 | void RegExpMacroAssemblerTracer::AdvanceRegister(int reg, int by) { |
| 118 | PrintF(" AdvanceRegister(register=%d, by=%d);\n", reg, by); |
| 119 | assembler_->AdvanceRegister(reg, by); |
| 120 | } |
| 121 | |
| 122 | |
| 123 | void RegExpMacroAssemblerTracer::SetCurrentPositionFromEnd(int by) { |
| 124 | PrintF(" SetCurrentPositionFromEnd(by=%d);\n", by); |
| 125 | assembler_->SetCurrentPositionFromEnd(by); |
| 126 | } |
| 127 | |
| 128 | |
| 129 | void RegExpMacroAssemblerTracer::SetRegister(int register_index, int to) { |
| 130 | PrintF(" SetRegister(register=%d, to=%d);\n", register_index, to); |
| 131 | assembler_->SetRegister(register_index, to); |
| 132 | } |
| 133 | |
| 134 | |
| 135 | void RegExpMacroAssemblerTracer::WriteCurrentPositionToRegister(int reg, |
| 136 | int cp_offset) { |
| 137 | PrintF(" WriteCurrentPositionToRegister(register=%d,cp_offset=%d);\n", |
| 138 | reg, |
| 139 | cp_offset); |
| 140 | assembler_->WriteCurrentPositionToRegister(reg, cp_offset); |
| 141 | } |
| 142 | |
| 143 | |
| 144 | void RegExpMacroAssemblerTracer::ClearRegisters(int reg_from, int reg_to) { |
| 145 | PrintF(" ClearRegister(from=%d, to=%d);\n", reg_from, reg_to); |
| 146 | assembler_->ClearRegisters(reg_from, reg_to); |
| 147 | } |
| 148 | |
| 149 | |
| 150 | void RegExpMacroAssemblerTracer::ReadCurrentPositionFromRegister(int reg) { |
| 151 | PrintF(" ReadCurrentPositionFromRegister(register=%d);\n", reg); |
| 152 | assembler_->ReadCurrentPositionFromRegister(reg); |
| 153 | } |
| 154 | |
| 155 | |
| 156 | void RegExpMacroAssemblerTracer::WriteStackPointerToRegister(int reg) { |
| 157 | PrintF(" WriteStackPointerToRegister(register=%d);\n", reg); |
| 158 | assembler_->WriteStackPointerToRegister(reg); |
| 159 | } |
| 160 | |
| 161 | |
| 162 | void RegExpMacroAssemblerTracer::ReadStackPointerFromRegister(int reg) { |
| 163 | PrintF(" ReadStackPointerFromRegister(register=%d);\n", reg); |
| 164 | assembler_->ReadStackPointerFromRegister(reg); |
| 165 | } |
| 166 | |
| 167 | |
| 168 | void RegExpMacroAssemblerTracer::LoadCurrentCharacter(int cp_offset, |
| 169 | Label* on_end_of_input, |
| 170 | bool check_bounds, |
| 171 | int characters) { |
| 172 | const char* check_msg = check_bounds ? "" : " (unchecked)"; |
| 173 | PrintF(" LoadCurrentCharacter(cp_offset=%d, label[%08x]%s (%d chars));\n", |
| 174 | cp_offset, |
| 175 | LabelToInt(on_end_of_input), |
| 176 | check_msg, |
| 177 | characters); |
| 178 | assembler_->LoadCurrentCharacter(cp_offset, |
| 179 | on_end_of_input, |
| 180 | check_bounds, |
| 181 | characters); |
| 182 | } |
| 183 | |
| 184 | |
| 185 | class PrintablePrinter { |
| 186 | public: |
| 187 | explicit PrintablePrinter(uc16 character) : character_(character) { } |
| 188 | |
| 189 | const char* operator*() { |
| 190 | if (character_ >= ' ' && character_ <= '~') { |
| 191 | buffer_[0] = '('; |
| 192 | buffer_[1] = static_cast<char>(character_); |
| 193 | buffer_[2] = ')'; |
| 194 | buffer_[3] = '\0'; |
| 195 | } else { |
| 196 | buffer_[0] = '\0'; |
| 197 | } |
| 198 | return &buffer_[0]; |
| 199 | } |
| 200 | |
| 201 | private: |
| 202 | uc16 character_; |
| 203 | char buffer_[4]; |
| 204 | }; |
| 205 | |
| 206 | |
| 207 | void RegExpMacroAssemblerTracer::CheckCharacterLT(uc16 limit, Label* on_less) { |
| 208 | PrintablePrinter printable(limit); |
| 209 | PrintF(" CheckCharacterLT(c=0x%04x%s, label[%08x]);\n", |
| 210 | limit, |
| 211 | *printable, |
| 212 | LabelToInt(on_less)); |
| 213 | assembler_->CheckCharacterLT(limit, on_less); |
| 214 | } |
| 215 | |
| 216 | |
| 217 | void RegExpMacroAssemblerTracer::CheckCharacterGT(uc16 limit, |
| 218 | Label* on_greater) { |
| 219 | PrintablePrinter printable(limit); |
| 220 | PrintF(" CheckCharacterGT(c=0x%04x%s, label[%08x]);\n", |
| 221 | limit, |
| 222 | *printable, |
| 223 | LabelToInt(on_greater)); |
| 224 | assembler_->CheckCharacterGT(limit, on_greater); |
| 225 | } |
| 226 | |
| 227 | |
| 228 | void RegExpMacroAssemblerTracer::CheckCharacter(unsigned c, Label* on_equal) { |
| 229 | PrintablePrinter printable(c); |
| 230 | PrintF(" CheckCharacter(c=0x%04x%s, label[%08x]);\n", |
| 231 | c, |
| 232 | *printable, |
| 233 | LabelToInt(on_equal)); |
| 234 | assembler_->CheckCharacter(c, on_equal); |
| 235 | } |
| 236 | |
| 237 | |
| 238 | void RegExpMacroAssemblerTracer::CheckAtStart(Label* on_at_start) { |
| 239 | PrintF(" CheckAtStart(label[%08x]);\n", LabelToInt(on_at_start)); |
| 240 | assembler_->CheckAtStart(on_at_start); |
| 241 | } |
| 242 | |
| 243 | |
| 244 | void RegExpMacroAssemblerTracer::CheckNotAtStart(int cp_offset, |
| 245 | Label* on_not_at_start) { |
| 246 | PrintF(" CheckNotAtStart(cp_offset=%d, label[%08x]);\n", cp_offset, |
| 247 | LabelToInt(on_not_at_start)); |
| 248 | assembler_->CheckNotAtStart(cp_offset, on_not_at_start); |
| 249 | } |
| 250 | |
| 251 | |
| 252 | void RegExpMacroAssemblerTracer::CheckNotCharacter(unsigned c, |
| 253 | Label* on_not_equal) { |
| 254 | PrintablePrinter printable(c); |
| 255 | PrintF(" CheckNotCharacter(c=0x%04x%s, label[%08x]);\n", |
| 256 | c, |
| 257 | *printable, |
| 258 | LabelToInt(on_not_equal)); |
| 259 | assembler_->CheckNotCharacter(c, on_not_equal); |
| 260 | } |
| 261 | |
| 262 | |
| 263 | void RegExpMacroAssemblerTracer::CheckCharacterAfterAnd( |
| 264 | unsigned c, |
| 265 | unsigned mask, |
| 266 | Label* on_equal) { |
| 267 | PrintablePrinter printable(c); |
| 268 | PrintF(" CheckCharacterAfterAnd(c=0x%04x%s, mask=0x%04x, label[%08x]);\n", |
| 269 | c, |
| 270 | *printable, |
| 271 | mask, |
| 272 | LabelToInt(on_equal)); |
| 273 | assembler_->CheckCharacterAfterAnd(c, mask, on_equal); |
| 274 | } |
| 275 | |
| 276 | |
| 277 | void RegExpMacroAssemblerTracer::CheckNotCharacterAfterAnd( |
| 278 | unsigned c, |
| 279 | unsigned mask, |
| 280 | Label* on_not_equal) { |
| 281 | PrintablePrinter printable(c); |
| 282 | PrintF(" CheckNotCharacterAfterAnd(c=0x%04x%s, mask=0x%04x, label[%08x]);\n", |
| 283 | c, |
| 284 | *printable, |
| 285 | mask, |
| 286 | LabelToInt(on_not_equal)); |
| 287 | assembler_->CheckNotCharacterAfterAnd(c, mask, on_not_equal); |
| 288 | } |
| 289 | |
| 290 | |
| 291 | void RegExpMacroAssemblerTracer::CheckNotCharacterAfterMinusAnd( |
| 292 | uc16 c, |
| 293 | uc16 minus, |
| 294 | uc16 mask, |
| 295 | Label* on_not_equal) { |
| 296 | PrintF(" CheckNotCharacterAfterMinusAnd(c=0x%04x, minus=%04x, mask=0x%04x, " |
| 297 | "label[%08x]);\n", |
| 298 | c, |
| 299 | minus, |
| 300 | mask, |
| 301 | LabelToInt(on_not_equal)); |
| 302 | assembler_->CheckNotCharacterAfterMinusAnd(c, minus, mask, on_not_equal); |
| 303 | } |
| 304 | |
| 305 | |
| 306 | void RegExpMacroAssemblerTracer::CheckCharacterInRange( |
| 307 | uc16 from, |
| 308 | uc16 to, |
| 309 | Label* on_not_in_range) { |
| 310 | PrintablePrinter printable_from(from); |
| 311 | PrintablePrinter printable_to(to); |
| 312 | PrintF(" CheckCharacterInRange(from=0x%04x%s, to=0x%04x%s, label[%08x]);\n", |
| 313 | from, |
| 314 | *printable_from, |
| 315 | to, |
| 316 | *printable_to, |
| 317 | LabelToInt(on_not_in_range)); |
| 318 | assembler_->CheckCharacterInRange(from, to, on_not_in_range); |
| 319 | } |
| 320 | |
| 321 | |
| 322 | void RegExpMacroAssemblerTracer::CheckCharacterNotInRange( |
| 323 | uc16 from, |
| 324 | uc16 to, |
| 325 | Label* on_in_range) { |
| 326 | PrintablePrinter printable_from(from); |
| 327 | PrintablePrinter printable_to(to); |
| 328 | PrintF( |
| 329 | " CheckCharacterNotInRange(from=0x%04x%s," " to=%04x%s, label[%08x]);\n", |
| 330 | from, |
| 331 | *printable_from, |
| 332 | to, |
| 333 | *printable_to, |
| 334 | LabelToInt(on_in_range)); |
| 335 | assembler_->CheckCharacterNotInRange(from, to, on_in_range); |
| 336 | } |
| 337 | |
| 338 | |
| 339 | void RegExpMacroAssemblerTracer::CheckBitInTable( |
| 340 | Handle<ByteArray> table, Label* on_bit_set) { |
| 341 | PrintF(" CheckBitInTable(label[%08x] ", LabelToInt(on_bit_set)); |
| 342 | for (int i = 0; i < kTableSize; i++) { |
| 343 | PrintF("%c", table->get(i) != 0 ? 'X' : '.'); |
| 344 | if (i % 32 == 31 && i != kTableMask) { |
| 345 | PrintF("\n "); |
| 346 | } |
| 347 | } |
| 348 | PrintF(");\n"); |
| 349 | assembler_->CheckBitInTable(table, on_bit_set); |
| 350 | } |
| 351 | |
| 352 | |
| 353 | void RegExpMacroAssemblerTracer::CheckNotBackReference(int start_reg, |
| 354 | bool read_backward, |
| 355 | Label* on_no_match) { |
| 356 | PrintF(" CheckNotBackReference(register=%d, %s, label[%08x]);\n", start_reg, |
| 357 | read_backward ? "backward" : "forward", LabelToInt(on_no_match)); |
| 358 | assembler_->CheckNotBackReference(start_reg, read_backward, on_no_match); |
| 359 | } |
| 360 | |
| 361 | |
| 362 | void RegExpMacroAssemblerTracer::CheckNotBackReferenceIgnoreCase( |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 363 | int start_reg, bool read_backward, bool unicode, Label* on_no_match) { |
| 364 | PrintF(" CheckNotBackReferenceIgnoreCase(register=%d, %s %s, label[%08x]);\n", |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 365 | start_reg, read_backward ? "backward" : "forward", |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 366 | unicode ? "unicode" : "non-unicode", LabelToInt(on_no_match)); |
| 367 | assembler_->CheckNotBackReferenceIgnoreCase(start_reg, read_backward, unicode, |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 368 | on_no_match); |
| 369 | } |
| 370 | |
| 371 | |
| 372 | void RegExpMacroAssemblerTracer::CheckPosition(int cp_offset, |
| 373 | Label* on_outside_input) { |
| 374 | PrintF(" CheckPosition(cp_offset=%d, label[%08x]);\n", cp_offset, |
| 375 | LabelToInt(on_outside_input)); |
| 376 | assembler_->CheckPosition(cp_offset, on_outside_input); |
| 377 | } |
| 378 | |
| 379 | |
| 380 | bool RegExpMacroAssemblerTracer::CheckSpecialCharacterClass( |
| 381 | uc16 type, |
| 382 | Label* on_no_match) { |
| 383 | bool supported = assembler_->CheckSpecialCharacterClass(type, |
| 384 | on_no_match); |
| 385 | PrintF(" CheckSpecialCharacterClass(type='%c', label[%08x]): %s;\n", |
| 386 | type, |
| 387 | LabelToInt(on_no_match), |
| 388 | supported ? "true" : "false"); |
| 389 | return supported; |
| 390 | } |
| 391 | |
| 392 | |
| 393 | void RegExpMacroAssemblerTracer::IfRegisterLT(int register_index, |
| 394 | int comparand, Label* if_lt) { |
| 395 | PrintF(" IfRegisterLT(register=%d, number=%d, label[%08x]);\n", |
| 396 | register_index, comparand, LabelToInt(if_lt)); |
| 397 | assembler_->IfRegisterLT(register_index, comparand, if_lt); |
| 398 | } |
| 399 | |
| 400 | |
| 401 | void RegExpMacroAssemblerTracer::IfRegisterEqPos(int register_index, |
| 402 | Label* if_eq) { |
| 403 | PrintF(" IfRegisterEqPos(register=%d, label[%08x]);\n", |
| 404 | register_index, LabelToInt(if_eq)); |
| 405 | assembler_->IfRegisterEqPos(register_index, if_eq); |
| 406 | } |
| 407 | |
| 408 | |
| 409 | void RegExpMacroAssemblerTracer::IfRegisterGE(int register_index, |
| 410 | int comparand, Label* if_ge) { |
| 411 | PrintF(" IfRegisterGE(register=%d, number=%d, label[%08x]);\n", |
| 412 | register_index, comparand, LabelToInt(if_ge)); |
| 413 | assembler_->IfRegisterGE(register_index, comparand, if_ge); |
| 414 | } |
| 415 | |
| 416 | |
| 417 | RegExpMacroAssembler::IrregexpImplementation |
| 418 | RegExpMacroAssemblerTracer::Implementation() { |
| 419 | return assembler_->Implementation(); |
| 420 | } |
| 421 | |
| 422 | |
| 423 | Handle<HeapObject> RegExpMacroAssemblerTracer::GetCode(Handle<String> source) { |
| 424 | PrintF(" GetCode(%s);\n", source->ToCString().get()); |
| 425 | return assembler_->GetCode(source); |
| 426 | } |
| 427 | |
| 428 | } // namespace internal |
| 429 | } // namespace v8 |