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1 // Copyright 2008 the V8 project authors. All rights reserved. | 1 // Copyright 2008 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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316 } | 316 } |
317 BYTECODE(LOOKUP_HI_MAP8) { | 317 BYTECODE(LOOKUP_HI_MAP8) { |
318 // Look up high byte of this character in a byte map. Use the byte as | 318 // Look up high byte of this character in a byte map. Use the byte as |
319 // an index into a table that follows this instruction immediately. | 319 // an index into a table that follows this instruction immediately. |
320 int index = (current_char >> 8) - pc[1]; | 320 int index = (current_char >> 8) - pc[1]; |
321 byte map = code_base[Load32(pc + 2) + index]; | 321 byte map = code_base[Load32(pc + 2) + index]; |
322 const byte* new_pc = code_base + Load32(pc + 6) + (map << 2); | 322 const byte* new_pc = code_base + Load32(pc + 6) + (map << 2); |
323 pc = code_base + Load32(new_pc); | 323 pc = code_base + Load32(new_pc); |
324 break; | 324 break; |
325 } | 325 } |
| 326 BYTECODE(CHECK_NOT_REGS_EQUAL) |
| 327 if (registers[pc[1]] == registers[pc[2]]) { |
| 328 pc += BC_CHECK_NOT_REGS_EQUAL_LENGTH; |
| 329 } else { |
| 330 pc = code_base + Load32(pc + 3); |
| 331 } |
| 332 break; |
326 BYTECODE(CHECK_NOT_BACK_REF) { | 333 BYTECODE(CHECK_NOT_BACK_REF) { |
327 int from = registers[pc[1]]; | 334 int from = registers[pc[1]]; |
328 int len = registers[pc[1] + 1] - from; | 335 int len = registers[pc[1] + 1] - from; |
329 if (current + len > subject.length()) { | 336 if (current + len > subject.length()) { |
330 pc = code_base + Load32(pc + 2); | 337 pc = code_base + Load32(pc + 2); |
331 break; | 338 break; |
332 } else { | 339 } else { |
333 int i; | 340 int i; |
334 for (i = 0; i < len; i++) { | 341 for (i = 0; i < len; i++) { |
335 if (subject[from + i] != subject[current + i]) { | 342 if (subject[from + i] != subject[current + i]) { |
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376 AssertNoAllocation a; | 383 AssertNoAllocation a; |
377 const byte* code_base = code_array->GetDataStartAddress(); | 384 const byte* code_base = code_array->GetDataStartAddress(); |
378 return RawMatch(code_base, | 385 return RawMatch(code_base, |
379 Vector<const uc16>(subject16->GetTwoByteData(), | 386 Vector<const uc16>(subject16->GetTwoByteData(), |
380 subject16->length()), | 387 subject16->length()), |
381 registers, | 388 registers, |
382 start_position); | 389 start_position); |
383 } | 390 } |
384 | 391 |
385 } } // namespace v8::internal | 392 } } // namespace v8::internal |
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