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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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44 V(BinaryOpIC) \ | 44 V(BinaryOpIC) \ |
45 V(BinaryOpICWithAllocationSite) \ | 45 V(BinaryOpICWithAllocationSite) \ |
46 V(BinaryOpWithAllocationSite) \ | 46 V(BinaryOpWithAllocationSite) \ |
47 V(StringAdd) \ | 47 V(StringAdd) \ |
48 V(SubString) \ | 48 V(SubString) \ |
49 V(StringCompare) \ | 49 V(StringCompare) \ |
50 V(Compare) \ | 50 V(Compare) \ |
51 V(CompareIC) \ | 51 V(CompareIC) \ |
52 V(CompareNilIC) \ | 52 V(CompareNilIC) \ |
53 V(MathPow) \ | 53 V(MathPow) \ |
54 V(CallIC) \ | |
55 V(FunctionPrototype) \ | 54 V(FunctionPrototype) \ |
56 V(RecordWrite) \ | 55 V(RecordWrite) \ |
57 V(StoreBufferOverflow) \ | 56 V(StoreBufferOverflow) \ |
58 V(RegExpExec) \ | 57 V(RegExpExec) \ |
59 V(Instanceof) \ | 58 V(Instanceof) \ |
60 V(ConvertToDouble) \ | 59 V(ConvertToDouble) \ |
61 V(WriteInt32ToHeapNumber) \ | 60 V(WriteInt32ToHeapNumber) \ |
62 V(StackCheck) \ | 61 V(StackCheck) \ |
63 V(Interrupt) \ | 62 V(Interrupt) \ |
64 V(FastNewClosure) \ | 63 V(FastNewClosure) \ |
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833 | 832 |
834 virtual int MinorKey() { | 833 virtual int MinorKey() { |
835 return KindBits::encode(kind_); | 834 return KindBits::encode(kind_); |
836 } | 835 } |
837 | 836 |
838 private: | 837 private: |
839 Code::Kind kind_; | 838 Code::Kind kind_; |
840 }; | 839 }; |
841 | 840 |
842 | 841 |
843 class CallICStub: public PlatformCodeStub { | |
844 public: | |
845 explicit CallICStub(const CallIC::State& state) | |
846 : state_(state) {} | |
847 | |
848 bool CallAsMethod() const { return state_.CallAsMethod(); } | |
849 bool IsGeneric() const { | |
850 return state_.IsGeneric(); | |
851 } | |
852 bool ArgumentsMustMatch() const { | |
853 return state_.ArgumentsMustMatch(); | |
854 } | |
855 bool IsSloppy() const { | |
856 return state_.IsSloppy(); | |
857 } | |
858 | |
859 int arg_count() const { return state_.arg_count(); } | |
860 | |
861 static int ExtractArgcFromMinorKey(int minor_key) { | |
862 CallIC::State state((ExtraICState) minor_key); | |
863 return state.arg_count(); | |
864 } | |
865 | |
866 virtual void Generate(MacroAssembler* masm); | |
867 | |
868 virtual Code::Kind GetCodeKind() const V8_OVERRIDE { | |
869 return Code::CALL_IC; | |
870 } | |
871 | |
872 virtual InlineCacheState GetICState() V8_FINAL V8_OVERRIDE { | |
873 return state_.GetICState(); | |
874 } | |
875 | |
876 virtual ExtraICState GetExtraICState() V8_FINAL V8_OVERRIDE { | |
877 return state_.GetExtraICState(); | |
878 } | |
879 | |
880 protected: | |
881 virtual int MinorKey() { return GetExtraICState(); } | |
882 virtual void PrintState(StringStream* stream) V8_FINAL V8_OVERRIDE; | |
883 | |
884 private: | |
885 virtual CodeStub::Major MajorKey() { return CallIC; } | |
886 | |
887 // Code generation helpers. | |
888 void GenerateMonomorphicCall(MacroAssembler* masm); | |
889 void GenerateSlowCall(MacroAssembler* masm); | |
890 void GenerateMiss(MacroAssembler* masm); | |
891 | |
892 CallIC::State state_; | |
893 }; | |
894 | |
895 | |
896 class FunctionPrototypeStub: public ICStub { | 842 class FunctionPrototypeStub: public ICStub { |
897 public: | 843 public: |
898 explicit FunctionPrototypeStub(Code::Kind kind) : ICStub(kind) { } | 844 explicit FunctionPrototypeStub(Code::Kind kind) : ICStub(kind) { } |
899 virtual void Generate(MacroAssembler* masm); | 845 virtual void Generate(MacroAssembler* masm); |
900 | 846 |
901 private: | 847 private: |
902 virtual CodeStub::Major MajorKey() { return FunctionPrototype; } | 848 virtual CodeStub::Major MajorKey() { return FunctionPrototype; } |
903 }; | 849 }; |
904 | 850 |
905 | 851 |
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1677 }; | 1623 }; |
1678 | 1624 |
1679 | 1625 |
1680 class CallFunctionStub: public PlatformCodeStub { | 1626 class CallFunctionStub: public PlatformCodeStub { |
1681 public: | 1627 public: |
1682 CallFunctionStub(int argc, CallFunctionFlags flags) | 1628 CallFunctionStub(int argc, CallFunctionFlags flags) |
1683 : argc_(argc), flags_(flags) { } | 1629 : argc_(argc), flags_(flags) { } |
1684 | 1630 |
1685 void Generate(MacroAssembler* masm); | 1631 void Generate(MacroAssembler* masm); |
1686 | 1632 |
| 1633 virtual void FinishCode(Handle<Code> code) { |
| 1634 code->set_has_function_cache(RecordCallTarget()); |
| 1635 } |
| 1636 |
1687 static int ExtractArgcFromMinorKey(int minor_key) { | 1637 static int ExtractArgcFromMinorKey(int minor_key) { |
1688 return ArgcBits::decode(minor_key); | 1638 return ArgcBits::decode(minor_key); |
1689 } | 1639 } |
1690 | 1640 |
1691 private: | 1641 private: |
1692 int argc_; | 1642 int argc_; |
1693 CallFunctionFlags flags_; | 1643 CallFunctionFlags flags_; |
1694 | 1644 |
1695 virtual void PrintName(StringStream* stream); | 1645 virtual void PrintName(StringStream* stream); |
1696 | 1646 |
1697 // Minor key encoding in 32 bits with Bitfield <Type, shift, size>. | 1647 // Minor key encoding in 32 bits with Bitfield <Type, shift, size>. |
1698 class FlagBits: public BitField<CallFunctionFlags, 0, 2> {}; | 1648 class FlagBits: public BitField<CallFunctionFlags, 0, 2> {}; |
1699 class ArgcBits: public BitField<unsigned, 2, 32 - 2> {}; | 1649 class ArgcBits: public BitField<unsigned, 2, 32 - 2> {}; |
1700 | 1650 |
1701 Major MajorKey() { return CallFunction; } | 1651 Major MajorKey() { return CallFunction; } |
1702 int MinorKey() { | 1652 int MinorKey() { |
1703 // Encode the parameters in a unique 32 bit value. | 1653 // Encode the parameters in a unique 32 bit value. |
1704 return FlagBits::encode(flags_) | ArgcBits::encode(argc_); | 1654 return FlagBits::encode(flags_) | ArgcBits::encode(argc_); |
1705 } | 1655 } |
1706 | 1656 |
| 1657 bool RecordCallTarget() { |
| 1658 return flags_ == RECORD_CALL_TARGET; |
| 1659 } |
| 1660 |
1707 bool CallAsMethod() { | 1661 bool CallAsMethod() { |
1708 return flags_ == CALL_AS_METHOD || flags_ == WRAP_AND_CALL; | 1662 return flags_ == CALL_AS_METHOD || flags_ == WRAP_AND_CALL; |
1709 } | 1663 } |
1710 | 1664 |
1711 bool NeedsChecks() { | 1665 bool NeedsChecks() { |
1712 return flags_ != WRAP_AND_CALL; | 1666 return flags_ != WRAP_AND_CALL; |
1713 } | 1667 } |
1714 }; | 1668 }; |
1715 | 1669 |
1716 | 1670 |
1717 class CallConstructStub: public PlatformCodeStub { | 1671 class CallConstructStub: public PlatformCodeStub { |
1718 public: | 1672 public: |
1719 explicit CallConstructStub(CallConstructorFlags flags) : flags_(flags) {} | 1673 explicit CallConstructStub(CallFunctionFlags flags) : flags_(flags) {} |
1720 | 1674 |
1721 void Generate(MacroAssembler* masm); | 1675 void Generate(MacroAssembler* masm); |
1722 | 1676 |
1723 virtual void FinishCode(Handle<Code> code) { | 1677 virtual void FinishCode(Handle<Code> code) { |
1724 code->set_has_function_cache(RecordCallTarget()); | 1678 code->set_has_function_cache(RecordCallTarget()); |
1725 } | 1679 } |
1726 | 1680 |
1727 private: | 1681 private: |
1728 CallConstructorFlags flags_; | 1682 CallFunctionFlags flags_; |
1729 | 1683 |
1730 virtual void PrintName(StringStream* stream); | 1684 virtual void PrintName(StringStream* stream); |
1731 | 1685 |
1732 Major MajorKey() { return CallConstruct; } | 1686 Major MajorKey() { return CallConstruct; } |
1733 int MinorKey() { return flags_; } | 1687 int MinorKey() { return flags_; } |
1734 | 1688 |
1735 bool RecordCallTarget() { | 1689 bool RecordCallTarget() { |
1736 return (flags_ & RECORD_CONSTRUCTOR_TARGET) != 0; | 1690 return (flags_ & RECORD_CALL_TARGET) != 0; |
| 1691 } |
| 1692 |
| 1693 bool CallAsMethod() { |
| 1694 return (flags_ & CALL_AS_METHOD) != 0; |
1737 } | 1695 } |
1738 }; | 1696 }; |
1739 | 1697 |
1740 | 1698 |
1741 enum StringIndexFlags { | 1699 enum StringIndexFlags { |
1742 // Accepts smis or heap numbers. | 1700 // Accepts smis or heap numbers. |
1743 STRING_INDEX_IS_NUMBER, | 1701 STRING_INDEX_IS_NUMBER, |
1744 | 1702 |
1745 // Accepts smis or heap numbers that are valid array indices | 1703 // Accepts smis or heap numbers that are valid array indices |
1746 // (ECMA-262 15.4). Invalid indices are reported as being out of | 1704 // (ECMA-262 15.4). Invalid indices are reported as being out of |
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2566 | 2524 |
2567 | 2525 |
2568 class CallDescriptors { | 2526 class CallDescriptors { |
2569 public: | 2527 public: |
2570 static void InitializeForIsolate(Isolate* isolate); | 2528 static void InitializeForIsolate(Isolate* isolate); |
2571 }; | 2529 }; |
2572 | 2530 |
2573 } } // namespace v8::internal | 2531 } } // namespace v8::internal |
2574 | 2532 |
2575 #endif // V8_CODE_STUBS_H_ | 2533 #endif // V8_CODE_STUBS_H_ |
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