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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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104 V(CompareConstantEqAndBranch) \ | 104 V(CompareConstantEqAndBranch) \ |
105 V(Constant) \ | 105 V(Constant) \ |
106 V(Context) \ | 106 V(Context) \ |
107 V(DeclareGlobals) \ | 107 V(DeclareGlobals) \ |
108 V(DeleteProperty) \ | 108 V(DeleteProperty) \ |
109 V(Deoptimize) \ | 109 V(Deoptimize) \ |
110 V(Div) \ | 110 V(Div) \ |
111 V(DummyUse) \ | 111 V(DummyUse) \ |
112 V(ElementsKind) \ | 112 V(ElementsKind) \ |
113 V(EnterInlined) \ | 113 V(EnterInlined) \ |
114 V(FastLiteral) \ | |
115 V(FixedArrayBaseLength) \ | 114 V(FixedArrayBaseLength) \ |
116 V(ForceRepresentation) \ | 115 V(ForceRepresentation) \ |
117 V(FunctionLiteral) \ | 116 V(FunctionLiteral) \ |
118 V(GetCachedArrayIndex) \ | 117 V(GetCachedArrayIndex) \ |
119 V(GlobalObject) \ | 118 V(GlobalObject) \ |
120 V(GlobalReceiver) \ | 119 V(GlobalReceiver) \ |
121 V(Goto) \ | 120 V(Goto) \ |
122 V(HasCachedArrayIndexAndBranch) \ | 121 V(HasCachedArrayIndexAndBranch) \ |
123 V(HasInstanceTypeAndBranch) \ | 122 V(HasInstanceTypeAndBranch) \ |
124 V(InductionVariableAnnotation) \ | 123 V(InductionVariableAnnotation) \ |
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4966 | 4965 |
4967 | 4966 |
4968 inline bool ReceiverObjectNeedsWriteBarrier(HValue* object, | 4967 inline bool ReceiverObjectNeedsWriteBarrier(HValue* object, |
4969 HValue* new_space_dominator) { | 4968 HValue* new_space_dominator) { |
4970 if (object->IsInnerAllocatedObject()) { | 4969 if (object->IsInnerAllocatedObject()) { |
4971 return ReceiverObjectNeedsWriteBarrier( | 4970 return ReceiverObjectNeedsWriteBarrier( |
4972 HInnerAllocatedObject::cast(object)->base_object(), | 4971 HInnerAllocatedObject::cast(object)->base_object(), |
4973 new_space_dominator); | 4972 new_space_dominator); |
4974 } | 4973 } |
4975 if (object != new_space_dominator) return true; | 4974 if (object != new_space_dominator) return true; |
4976 if (object->IsFastLiteral()) return false; | |
4977 if (object->IsAllocateObject()) return false; | 4975 if (object->IsAllocateObject()) return false; |
4978 if (object->IsAllocate()) { | 4976 if (object->IsAllocate()) { |
4979 return !HAllocate::cast(object)->GuaranteedInNewSpace(); | 4977 return !HAllocate::cast(object)->GuaranteedInNewSpace(); |
4980 } | 4978 } |
4981 return true; | 4979 return true; |
4982 } | 4980 } |
4983 | 4981 |
4984 | 4982 |
4985 class HStoreGlobalCell: public HUnaryOperation { | 4983 class HStoreGlobalCell: public HUnaryOperation { |
4986 public: | 4984 public: |
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5981 | 5979 |
5982 private: | 5980 private: |
5983 virtual bool IsDeletable() const { return true; } | 5981 virtual bool IsDeletable() const { return true; } |
5984 | 5982 |
5985 int literal_index_; | 5983 int literal_index_; |
5986 int depth_; | 5984 int depth_; |
5987 AllocationSiteMode allocation_site_mode_; | 5985 AllocationSiteMode allocation_site_mode_; |
5988 }; | 5986 }; |
5989 | 5987 |
5990 | 5988 |
5991 class HFastLiteral: public HMaterializedLiteral<1> { | |
5992 public: | |
5993 HFastLiteral(HValue* context, | |
5994 Handle<JSObject> boilerplate, | |
5995 int total_size, | |
5996 int literal_index, | |
5997 int depth, | |
5998 AllocationSiteMode mode) | |
5999 : HMaterializedLiteral<1>(literal_index, depth, mode), | |
6000 boilerplate_(boilerplate), | |
6001 total_size_(total_size) { | |
6002 SetOperandAt(0, context); | |
6003 SetGVNFlag(kChangesNewSpacePromotion); | |
6004 } | |
6005 | |
6006 // Maximum depth and total number of elements and properties for literal | |
6007 // graphs to be considered for fast deep-copying. | |
6008 static const int kMaxLiteralDepth = 3; | |
6009 static const int kMaxLiteralProperties = 8; | |
6010 | |
6011 HValue* context() { return OperandAt(0); } | |
6012 Handle<JSObject> boilerplate() const { return boilerplate_; } | |
6013 int total_size() const { return total_size_; } | |
6014 virtual Representation RequiredInputRepresentation(int index) { | |
6015 return Representation::Tagged(); | |
6016 } | |
6017 virtual Handle<Map> GetMonomorphicJSObjectMap() { | |
6018 return Handle<Map>(boilerplate()->map()); | |
6019 } | |
6020 virtual HType CalculateInferredType(); | |
6021 | |
6022 DECLARE_CONCRETE_INSTRUCTION(FastLiteral) | |
6023 | |
6024 private: | |
6025 Handle<JSObject> boilerplate_; | |
6026 int total_size_; | |
6027 }; | |
6028 | |
6029 | |
6030 class HArrayLiteral: public HMaterializedLiteral<1> { | 5989 class HArrayLiteral: public HMaterializedLiteral<1> { |
6031 public: | 5990 public: |
6032 HArrayLiteral(HValue* context, | 5991 HArrayLiteral(HValue* context, |
6033 Handle<HeapObject> boilerplate_object, | 5992 Handle<HeapObject> boilerplate_object, |
6034 int length, | 5993 int length, |
6035 int literal_index, | 5994 int literal_index, |
6036 int depth, | 5995 int depth, |
6037 AllocationSiteMode mode) | 5996 AllocationSiteMode mode) |
6038 : HMaterializedLiteral<1>(literal_index, depth, mode), | 5997 : HMaterializedLiteral<1>(literal_index, depth, mode), |
6039 length_(length), | 5998 length_(length), |
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6207 DECLARE_CONCRETE_INSTRUCTION(TrapAllocationMemento) | 6166 DECLARE_CONCRETE_INSTRUCTION(TrapAllocationMemento) |
6208 }; | 6167 }; |
6209 | 6168 |
6210 | 6169 |
6211 class HToFastProperties: public HUnaryOperation { | 6170 class HToFastProperties: public HUnaryOperation { |
6212 public: | 6171 public: |
6213 explicit HToFastProperties(HValue* value) : HUnaryOperation(value) { | 6172 explicit HToFastProperties(HValue* value) : HUnaryOperation(value) { |
6214 // This instruction is not marked as having side effects, but | 6173 // This instruction is not marked as having side effects, but |
6215 // changes the map of the input operand. Use it only when creating | 6174 // changes the map of the input operand. Use it only when creating |
6216 // object literals. | 6175 // object literals. |
6217 ASSERT(value->IsObjectLiteral() || value->IsFastLiteral()); | 6176 ASSERT(value->IsObjectLiteral()); |
6218 set_representation(Representation::Tagged()); | 6177 set_representation(Representation::Tagged()); |
6219 } | 6178 } |
6220 | 6179 |
6221 virtual Representation RequiredInputRepresentation(int index) { | 6180 virtual Representation RequiredInputRepresentation(int index) { |
6222 return Representation::Tagged(); | 6181 return Representation::Tagged(); |
6223 } | 6182 } |
6224 | 6183 |
6225 DECLARE_CONCRETE_INSTRUCTION(ToFastProperties) | 6184 DECLARE_CONCRETE_INSTRUCTION(ToFastProperties) |
6226 | 6185 |
6227 private: | 6186 private: |
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6471 virtual bool IsDeletable() const { return true; } | 6430 virtual bool IsDeletable() const { return true; } |
6472 }; | 6431 }; |
6473 | 6432 |
6474 | 6433 |
6475 #undef DECLARE_INSTRUCTION | 6434 #undef DECLARE_INSTRUCTION |
6476 #undef DECLARE_CONCRETE_INSTRUCTION | 6435 #undef DECLARE_CONCRETE_INSTRUCTION |
6477 | 6436 |
6478 } } // namespace v8::internal | 6437 } } // namespace v8::internal |
6479 | 6438 |
6480 #endif // V8_HYDROGEN_INSTRUCTIONS_H_ | 6439 #endif // V8_HYDROGEN_INSTRUCTIONS_H_ |
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