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Side by Side Diff: src/hydrogen-instructions.h

Issue 19493005: Avoid adding HWrapReceiver during graph building. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 7 years, 4 months ago
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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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4962 public: 4962 public:
4963 enum Flags { 4963 enum Flags {
4964 CAN_ALLOCATE_IN_NEW_SPACE = 1 << 0, 4964 CAN_ALLOCATE_IN_NEW_SPACE = 1 << 0,
4965 CAN_ALLOCATE_IN_OLD_DATA_SPACE = 1 << 1, 4965 CAN_ALLOCATE_IN_OLD_DATA_SPACE = 1 << 1,
4966 CAN_ALLOCATE_IN_OLD_POINTER_SPACE = 1 << 2, 4966 CAN_ALLOCATE_IN_OLD_POINTER_SPACE = 1 << 2,
4967 ALLOCATE_DOUBLE_ALIGNED = 1 << 3, 4967 ALLOCATE_DOUBLE_ALIGNED = 1 << 3,
4968 PREFILL_WITH_FILLER = 1 << 4 4968 PREFILL_WITH_FILLER = 1 << 4
4969 }; 4969 };
4970 4970
4971 HAllocate(HValue* context, HValue* size, HType type, Flags flags) 4971 HAllocate(HValue* context, HValue* size, HType type, Flags flags)
4972 : type_(type), 4972 : flags_(flags) {
4973 flags_(flags) {
4974 SetOperandAt(0, context); 4973 SetOperandAt(0, context);
4975 SetOperandAt(1, size); 4974 SetOperandAt(1, size);
4975 set_type(type);
4976 set_representation(Representation::Tagged()); 4976 set_representation(Representation::Tagged());
4977 SetFlag(kTrackSideEffectDominators); 4977 SetFlag(kTrackSideEffectDominators);
4978 SetGVNFlag(kChangesNewSpacePromotion); 4978 SetGVNFlag(kChangesNewSpacePromotion);
4979 SetGVNFlag(kDependsOnNewSpacePromotion); 4979 SetGVNFlag(kDependsOnNewSpacePromotion);
4980 } 4980 }
4981 4981
4982 // Maximum instance size for which allocations will be inlined. 4982 // Maximum instance size for which allocations will be inlined.
4983 static const int kMaxInlineSize = 64 * kPointerSize; 4983 static const int kMaxInlineSize = 64 * kPointerSize;
4984 4984
4985 static Flags DefaultFlags() { 4985 static Flags DefaultFlags() {
4986 return CAN_ALLOCATE_IN_NEW_SPACE; 4986 return CAN_ALLOCATE_IN_NEW_SPACE;
4987 } 4987 }
4988 4988
4989 static Flags DefaultFlags(ElementsKind kind) { 4989 static Flags DefaultFlags(ElementsKind kind) {
4990 Flags flags = CAN_ALLOCATE_IN_NEW_SPACE; 4990 Flags flags = CAN_ALLOCATE_IN_NEW_SPACE;
4991 if (IsFastDoubleElementsKind(kind)) { 4991 if (IsFastDoubleElementsKind(kind)) {
4992 flags = static_cast<HAllocate::Flags>( 4992 flags = static_cast<HAllocate::Flags>(
4993 flags | HAllocate::ALLOCATE_DOUBLE_ALIGNED); 4993 flags | HAllocate::ALLOCATE_DOUBLE_ALIGNED);
4994 } 4994 }
4995 return flags; 4995 return flags;
4996 } 4996 }
4997 4997
4998 HValue* context() { return OperandAt(0); } 4998 HValue* context() { return OperandAt(0); }
4999 HValue* size() { return OperandAt(1); } 4999 HValue* size() { return OperandAt(1); }
5000 HType type() { return type_; }
5001 5000
5002 virtual Representation RequiredInputRepresentation(int index) { 5001 virtual Representation RequiredInputRepresentation(int index) {
5003 if (index == 0) { 5002 if (index == 0) {
5004 return Representation::Tagged(); 5003 return Representation::Tagged();
5005 } else { 5004 } else {
5006 return Representation::Integer32(); 5005 return Representation::Integer32();
5007 } 5006 }
5008 } 5007 }
5009 5008
5010 virtual Handle<Map> GetMonomorphicJSObjectMap() { 5009 virtual Handle<Map> GetMonomorphicJSObjectMap() {
5011 return known_initial_map_; 5010 return known_initial_map_;
5012 } 5011 }
5013 5012
5014 void set_known_initial_map(Handle<Map> known_initial_map) { 5013 void set_known_initial_map(Handle<Map> known_initial_map) {
5015 known_initial_map_ = known_initial_map; 5014 known_initial_map_ = known_initial_map;
5016 } 5015 }
5017 5016
5018 virtual HType CalculateInferredType();
5019
5020 bool CanAllocateInNewSpace() const { 5017 bool CanAllocateInNewSpace() const {
5021 return (flags_ & CAN_ALLOCATE_IN_NEW_SPACE) != 0; 5018 return (flags_ & CAN_ALLOCATE_IN_NEW_SPACE) != 0;
5022 } 5019 }
5023 5020
5024 bool CanAllocateInOldDataSpace() const { 5021 bool CanAllocateInOldDataSpace() const {
5025 return (flags_ & CAN_ALLOCATE_IN_OLD_DATA_SPACE) != 0; 5022 return (flags_ & CAN_ALLOCATE_IN_OLD_DATA_SPACE) != 0;
5026 } 5023 }
5027 5024
5028 bool CanAllocateInOldPointerSpace() const { 5025 bool CanAllocateInOldPointerSpace() const {
5029 return (flags_ & CAN_ALLOCATE_IN_OLD_POINTER_SPACE) != 0; 5026 return (flags_ & CAN_ALLOCATE_IN_OLD_POINTER_SPACE) != 0;
(...skipping 25 matching lines...) Expand all
5055 } 5052 }
5056 5053
5057 virtual void HandleSideEffectDominator(GVNFlag side_effect, 5054 virtual void HandleSideEffectDominator(GVNFlag side_effect,
5058 HValue* dominator); 5055 HValue* dominator);
5059 5056
5060 virtual void PrintDataTo(StringStream* stream); 5057 virtual void PrintDataTo(StringStream* stream);
5061 5058
5062 DECLARE_CONCRETE_INSTRUCTION(Allocate) 5059 DECLARE_CONCRETE_INSTRUCTION(Allocate)
5063 5060
5064 private: 5061 private:
5065 HType type_;
5066 Flags flags_; 5062 Flags flags_;
5067 Handle<Map> known_initial_map_; 5063 Handle<Map> known_initial_map_;
5068 }; 5064 };
5069 5065
5070 5066
5071 class HInnerAllocatedObject: public HTemplateInstruction<1> { 5067 class HInnerAllocatedObject: public HTemplateInstruction<1> {
5072 public: 5068 public:
5073 HInnerAllocatedObject(HValue* value, int offset, HType type = HType::Tagged()) 5069 HInnerAllocatedObject(HValue* value, int offset, HType type = HType::Tagged())
5074 : offset_(offset), 5070 : offset_(offset) {
5075 type_(type) {
5076 ASSERT(value->IsAllocate()); 5071 ASSERT(value->IsAllocate());
5077 SetOperandAt(0, value); 5072 SetOperandAt(0, value);
5073 set_type(type);
5078 set_representation(Representation::Tagged()); 5074 set_representation(Representation::Tagged());
5079 } 5075 }
5080 5076
5081 HValue* base_object() { return OperandAt(0); } 5077 HValue* base_object() { return OperandAt(0); }
5082 int offset() { return offset_; } 5078 int offset() { return offset_; }
5083 5079
5084 virtual Representation RequiredInputRepresentation(int index) { 5080 virtual Representation RequiredInputRepresentation(int index) {
5085 return Representation::Tagged(); 5081 return Representation::Tagged();
5086 } 5082 }
5087 5083
5088 virtual HType CalculateInferredType() { return type_; }
5089
5090 virtual void PrintDataTo(StringStream* stream); 5084 virtual void PrintDataTo(StringStream* stream);
5091 5085
5092 DECLARE_CONCRETE_INSTRUCTION(InnerAllocatedObject) 5086 DECLARE_CONCRETE_INSTRUCTION(InnerAllocatedObject)
5093 5087
5094 private: 5088 private:
5095 int offset_; 5089 int offset_;
5096 HType type_;
5097 }; 5090 };
5098 5091
5099 5092
5100 inline bool StoringValueNeedsWriteBarrier(HValue* value) { 5093 inline bool StoringValueNeedsWriteBarrier(HValue* value) {
5101 return !value->type().IsBoolean() 5094 return !value->type().IsBoolean()
5102 && !value->type().IsSmi() 5095 && !value->type().IsSmi()
5103 && !(value->IsConstant() && HConstant::cast(value)->ImmortalImmovable()); 5096 && !(value->IsConstant() && HConstant::cast(value)->ImmortalImmovable());
5104 } 5097 }
5105 5098
5106 5099
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6694 virtual bool IsDeletable() const { return true; } 6687 virtual bool IsDeletable() const { return true; }
6695 }; 6688 };
6696 6689
6697 6690
6698 #undef DECLARE_INSTRUCTION 6691 #undef DECLARE_INSTRUCTION
6699 #undef DECLARE_CONCRETE_INSTRUCTION 6692 #undef DECLARE_CONCRETE_INSTRUCTION
6700 6693
6701 } } // namespace v8::internal 6694 } } // namespace v8::internal
6702 6695
6703 #endif // V8_HYDROGEN_INSTRUCTIONS_H_ 6696 #endif // V8_HYDROGEN_INSTRUCTIONS_H_
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