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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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414 const char* GetName() { return "NumberToStringStub"; } | 414 const char* GetName() { return "NumberToStringStub"; } |
415 | 415 |
416 #ifdef DEBUG | 416 #ifdef DEBUG |
417 void Print() { | 417 void Print() { |
418 PrintF("NumberToStringStub\n"); | 418 PrintF("NumberToStringStub\n"); |
419 } | 419 } |
420 #endif | 420 #endif |
421 }; | 421 }; |
422 | 422 |
423 | 423 |
424 class StringDictionaryLookupStub: public CodeStub { | |
425 public: | |
426 enum LookupMode { POSITIVE_LOOKUP, NEGATIVE_LOOKUP }; | |
427 | |
428 StringDictionaryLookupStub(Register dictionary, | |
429 Register result, | |
430 Register index, | |
431 LookupMode mode) | |
432 : dictionary_(dictionary), result_(result), index_(index), mode_(mode) { } | |
433 | |
434 void Generate(MacroAssembler* masm); | |
435 | |
436 static void GenerateNegativeLookup(MacroAssembler* masm, | |
437 Label* miss, | |
438 Label* done, | |
439 Register properties, | |
440 String* name, | |
441 Register r0); | |
442 | |
443 static void GeneratePositiveLookup(MacroAssembler* masm, | |
444 Label* miss, | |
445 Label* done, | |
446 Register elements, | |
447 Register name, | |
448 Register r0, | |
449 Register r1); | |
450 private: | |
Mads Ager (chromium)
2011/05/05 11:54:56
Move.
Vyacheslav Egorov (Chromium)
2011/05/05 12:30:16
Done.
| |
451 | |
452 static const int kInlinedProbes = 4; | |
453 static const int kTotalProbes = 20; | |
454 | |
455 static const int kCapacityOffset = | |
456 StringDictionary::kHeaderSize + | |
457 StringDictionary::kCapacityIndex * kPointerSize; | |
458 | |
459 static const int kElementsStartOffset = | |
460 StringDictionary::kHeaderSize + | |
461 StringDictionary::kElementsStartIndex * kPointerSize; | |
462 | |
463 | |
464 #ifdef DEBUG | |
465 void Print() { | |
466 PrintF("StringDictionaryLookupStub\n"); | |
467 } | |
468 #endif | |
469 | |
470 Major MajorKey() { return StringDictionaryNegativeLookup; } | |
471 | |
472 int MinorKey() { | |
473 return DictionaryBits::encode(dictionary_.code()) | | |
474 ResultBits::encode(result_.code()) | | |
475 IndexBits::encode(index_.code()) | | |
476 LookupModeBits::encode(mode_); | |
477 } | |
478 | |
479 class DictionaryBits: public BitField<int, 0, 4> {}; | |
480 class ResultBits: public BitField<int, 4, 4> {}; | |
481 class IndexBits: public BitField<int, 8, 4> {}; | |
482 class LookupModeBits: public BitField<LookupMode, 12, 1> {}; | |
483 | |
484 Register dictionary_; | |
485 Register result_; | |
486 Register index_; | |
487 LookupMode mode_; | |
488 }; | |
489 | |
490 | |
424 } } // namespace v8::internal | 491 } } // namespace v8::internal |
425 | 492 |
426 #endif // V8_X64_CODE_STUBS_X64_H_ | 493 #endif // V8_X64_CODE_STUBS_X64_H_ |
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