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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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356 }; | 356 }; |
357 | 357 |
358 | 358 |
359 class FastCloneShallowArrayStub : public CodeStub { | 359 class FastCloneShallowArrayStub : public CodeStub { |
360 public: | 360 public: |
361 // Maximum length of copied elements array. | 361 // Maximum length of copied elements array. |
362 static const int kMaximumClonedLength = 8; | 362 static const int kMaximumClonedLength = 8; |
363 | 363 |
364 enum Mode { | 364 enum Mode { |
365 CLONE_ELEMENTS, | 365 CLONE_ELEMENTS, |
| 366 CLONE_DOUBLE_ELEMENTS, |
366 COPY_ON_WRITE_ELEMENTS | 367 COPY_ON_WRITE_ELEMENTS |
367 }; | 368 }; |
368 | 369 |
369 FastCloneShallowArrayStub(Mode mode, int length) | 370 FastCloneShallowArrayStub(Mode mode, int length) |
370 : mode_(mode), | 371 : mode_(mode), |
371 length_((mode == COPY_ON_WRITE_ELEMENTS) ? 0 : length) { | 372 length_((mode == COPY_ON_WRITE_ELEMENTS) ? 0 : length) { |
372 ASSERT(length_ >= 0); | 373 ASSERT(length_ >= 0); |
373 ASSERT(length_ <= kMaximumClonedLength); | 374 ASSERT(length_ <= kMaximumClonedLength); |
374 } | 375 } |
375 | 376 |
376 void Generate(MacroAssembler* masm); | 377 void Generate(MacroAssembler* masm); |
377 | 378 |
378 private: | 379 private: |
379 Mode mode_; | 380 Mode mode_; |
380 int length_; | 381 int length_; |
381 | 382 |
382 Major MajorKey() { return FastCloneShallowArray; } | 383 Major MajorKey() { return FastCloneShallowArray; } |
383 int MinorKey() { | 384 int MinorKey() { |
384 ASSERT(mode_ == 0 || mode_ == 1); | 385 ASSERT(mode_ == 0 || mode_ == 1 || mode_ == 2); |
385 return (length_ << 1) | mode_; | 386 return length_ * 3 + mode_; |
386 } | 387 } |
387 }; | 388 }; |
388 | 389 |
389 | 390 |
390 class InstanceofStub: public CodeStub { | 391 class InstanceofStub: public CodeStub { |
391 public: | 392 public: |
392 enum Flags { | 393 enum Flags { |
393 kNoFlags = 0, | 394 kNoFlags = 0, |
394 kArgsInRegisters = 1 << 0, | 395 kArgsInRegisters = 1 << 0, |
395 kCallSiteInlineCheck = 1 << 1, | 396 kCallSiteInlineCheck = 1 << 1, |
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1063 ElementsKind to_; | 1064 ElementsKind to_; |
1064 bool is_jsarray_; | 1065 bool is_jsarray_; |
1065 StrictModeFlag strict_mode_; | 1066 StrictModeFlag strict_mode_; |
1066 | 1067 |
1067 DISALLOW_COPY_AND_ASSIGN(FastElementsConversionStub); | 1068 DISALLOW_COPY_AND_ASSIGN(FastElementsConversionStub); |
1068 }; | 1069 }; |
1069 | 1070 |
1070 } } // namespace v8::internal | 1071 } } // namespace v8::internal |
1071 | 1072 |
1072 #endif // V8_CODE_STUBS_H_ | 1073 #endif // V8_CODE_STUBS_H_ |
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