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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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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33 #include "globals.h" | 33 #include "globals.h" |
34 #include "codegen.h" | 34 #include "codegen.h" |
35 | 35 |
36 namespace v8 { | 36 namespace v8 { |
37 namespace internal { | 37 namespace internal { |
38 | 38 |
39 // List of code stubs used on all platforms. | 39 // List of code stubs used on all platforms. |
40 #define CODE_STUB_LIST_ALL_PLATFORMS(V) \ | 40 #define CODE_STUB_LIST_ALL_PLATFORMS(V) \ |
41 V(CallFunction) \ | 41 V(CallFunction) \ |
42 V(CallConstruct) \ | 42 V(CallConstruct) \ |
43 V(UnaryOp) \ | |
44 V(BinaryOp) \ | 43 V(BinaryOp) \ |
45 V(StringAdd) \ | 44 V(StringAdd) \ |
46 V(SubString) \ | 45 V(SubString) \ |
47 V(StringCompare) \ | 46 V(StringCompare) \ |
48 V(Compare) \ | 47 V(Compare) \ |
49 V(CompareIC) \ | 48 V(CompareIC) \ |
50 V(CompareNilIC) \ | 49 V(CompareNilIC) \ |
51 V(MathPow) \ | 50 V(MathPow) \ |
52 V(StringLength) \ | 51 V(StringLength) \ |
53 V(FunctionPrototype) \ | 52 V(FunctionPrototype) \ |
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586 class StrictModeBits: public BitField<StrictModeFlag, 0, 1> {}; | 585 class StrictModeBits: public BitField<StrictModeFlag, 0, 1> {}; |
587 class IsConstantBits: public BitField<bool, 1, 1> {}; | 586 class IsConstantBits: public BitField<bool, 1, 1> {}; |
588 class RepresentationBits: public BitField<Representation::Kind, 2, 8> {}; | 587 class RepresentationBits: public BitField<Representation::Kind, 2, 8> {}; |
589 | 588 |
590 int bit_field_; | 589 int bit_field_; |
591 | 590 |
592 DISALLOW_COPY_AND_ASSIGN(StoreGlobalStub); | 591 DISALLOW_COPY_AND_ASSIGN(StoreGlobalStub); |
593 }; | 592 }; |
594 | 593 |
595 | 594 |
596 class UnaryOpStub : public HydrogenCodeStub { | |
597 public: | |
598 // Stub without type info available -> construct uninitialized | |
599 explicit UnaryOpStub(Token::Value operation) | |
600 : HydrogenCodeStub(UNINITIALIZED), operation_(operation) { } | |
601 explicit UnaryOpStub(Code::ExtraICState ic_state) : | |
602 state_(StateBits::decode(ic_state)), | |
603 operation_(OperatorBits::decode(ic_state)) { } | |
604 | |
605 virtual void InitializeInterfaceDescriptor( | |
606 Isolate* isolate, | |
607 CodeStubInterfaceDescriptor* descriptor); | |
608 | |
609 virtual Code::Kind GetCodeKind() const { return Code::UNARY_OP_IC; } | |
610 virtual InlineCacheState GetICState() { | |
611 if (state_.Contains(GENERIC)) { | |
612 return MEGAMORPHIC; | |
613 } else if (state_.IsEmpty()) { | |
614 return PREMONOMORPHIC; | |
615 } else { | |
616 return MONOMORPHIC; | |
617 } | |
618 } | |
619 virtual Code::ExtraICState GetExtraICState() { | |
620 return OperatorBits::encode(operation_) | | |
621 StateBits::encode(state_.ToIntegral()); | |
622 } | |
623 | |
624 Token::Value operation() { return operation_; } | |
625 Handle<JSFunction> ToJSFunction(Isolate* isolate); | |
626 Builtins::JavaScript ToJSBuiltin(); | |
627 | |
628 void UpdateStatus(Handle<Object> object); | |
629 MaybeObject* Result(Handle<Object> object, Isolate* isolate); | |
630 Handle<Code> GenerateCode(); | |
631 Handle<Type> GetType(Isolate* isolate); | |
632 | |
633 protected: | |
634 void PrintState(StringStream* stream); | |
635 void PrintBaseName(StringStream* stream); | |
636 | |
637 private: | |
638 enum UnaryOpType { | |
639 SMI, | |
640 HEAP_NUMBER, | |
641 GENERIC, | |
642 NUMBER_OF_TYPES | |
643 }; | |
644 | |
645 class State : public EnumSet<UnaryOpType, byte> { | |
646 public: | |
647 State() : EnumSet<UnaryOpType, byte>() { } | |
648 explicit State(byte bits) : EnumSet<UnaryOpType, byte>(bits) { } | |
649 void Print(StringStream* stream) const; | |
650 }; | |
651 | |
652 class StateBits : public BitField<int, 0, NUMBER_OF_TYPES> { }; | |
653 class OperatorBits : public BitField<Token::Value, NUMBER_OF_TYPES, 8> { }; | |
654 | |
655 State state_; | |
656 Token::Value operation_; | |
657 | |
658 virtual CodeStub::Major MajorKey() { return UnaryOp; } | |
659 virtual int NotMissMinorKey() { return GetExtraICState(); } | |
660 }; | |
661 | |
662 | |
663 class FastCloneShallowArrayStub : public HydrogenCodeStub { | 595 class FastCloneShallowArrayStub : public HydrogenCodeStub { |
664 public: | 596 public: |
665 // Maximum length of copied elements array. | 597 // Maximum length of copied elements array. |
666 static const int kMaximumClonedLength = 8; | 598 static const int kMaximumClonedLength = 8; |
667 enum Mode { | 599 enum Mode { |
668 CLONE_ELEMENTS, | 600 CLONE_ELEMENTS, |
669 CLONE_DOUBLE_ELEMENTS, | 601 CLONE_DOUBLE_ELEMENTS, |
670 COPY_ON_WRITE_ELEMENTS, | 602 COPY_ON_WRITE_ELEMENTS, |
671 CLONE_ANY_ELEMENTS, | 603 CLONE_ANY_ELEMENTS, |
672 LAST_CLONE_MODE = CLONE_ANY_ELEMENTS | 604 LAST_CLONE_MODE = CLONE_ANY_ELEMENTS |
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2375 int MinorKey() { return 0; } | 2307 int MinorKey() { return 0; } |
2376 | 2308 |
2377 void Generate(MacroAssembler* masm); | 2309 void Generate(MacroAssembler* masm); |
2378 | 2310 |
2379 DISALLOW_COPY_AND_ASSIGN(ProfileEntryHookStub); | 2311 DISALLOW_COPY_AND_ASSIGN(ProfileEntryHookStub); |
2380 }; | 2312 }; |
2381 | 2313 |
2382 } } // namespace v8::internal | 2314 } } // namespace v8::internal |
2383 | 2315 |
2384 #endif // V8_CODE_STUBS_H_ | 2316 #endif // V8_CODE_STUBS_H_ |
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