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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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5225 Handle<Object> name_; | 5225 Handle<Object> name_; |
5226 bool for_typeof_; | 5226 bool for_typeof_; |
5227 }; | 5227 }; |
5228 | 5228 |
5229 | 5229 |
5230 class HAllocate: public HTemplateInstruction<2> { | 5230 class HAllocate: public HTemplateInstruction<2> { |
5231 public: | 5231 public: |
5232 HAllocate(HValue* context, | 5232 HAllocate(HValue* context, |
5233 HValue* size, | 5233 HValue* size, |
5234 HType type, | 5234 HType type, |
5235 bool pretenure, | 5235 AllocationMode allocation_mode, |
5236 ElementsKind kind = FAST_ELEMENTS) | 5236 InstanceType instance_type) |
5237 : HTemplateInstruction<2>(type) { | 5237 : HTemplateInstruction<2>(type) { |
5238 SetOperandAt(0, context); | 5238 SetOperandAt(0, context); |
5239 SetOperandAt(1, size); | 5239 SetOperandAt(1, size); |
5240 set_representation(Representation::Tagged()); | 5240 set_representation(Representation::Tagged()); |
5241 SetFlag(kTrackSideEffectDominators); | 5241 SetFlag(kTrackSideEffectDominators); |
5242 SetGVNFlag(kChangesNewSpacePromotion); | 5242 SetGVNFlag(kChangesNewSpacePromotion); |
5243 SetGVNFlag(kDependsOnNewSpacePromotion); | 5243 SetGVNFlag(kDependsOnNewSpacePromotion); |
5244 if (pretenure) { | 5244 flags_ = allocation_mode == OLD_SPACE_ALLOCATION ? |
5245 if (IsFastDoubleElementsKind(kind)) { | 5245 (Heap::TargetSpaceId(instance_type) == OLD_POINTER_SPACE ? |
5246 flags_ = static_cast<HAllocate::Flags>(ALLOCATE_IN_OLD_DATA_SPACE | | 5246 ALLOCATE_IN_OLD_POINTER_SPACE : ALLOCATE_IN_OLD_DATA_SPACE) |
5247 ALLOCATE_DOUBLE_ALIGNED); | 5247 : ALLOCATE_IN_NEW_SPACE; |
5248 } else { | 5248 if (instance_type == FIXED_DOUBLE_ARRAY_TYPE) { |
5249 flags_ = ALLOCATE_IN_OLD_POINTER_SPACE; | 5249 flags_ = static_cast<HAllocate::Flags>(flags_ | |
5250 } | 5250 ALLOCATE_DOUBLE_ALIGNED); |
5251 } else { | |
5252 flags_ = ALLOCATE_IN_NEW_SPACE; | |
5253 if (IsFastDoubleElementsKind(kind)) { | |
5254 flags_ = static_cast<HAllocate::Flags>(flags_ | | |
5255 ALLOCATE_DOUBLE_ALIGNED); | |
5256 } | |
5257 } | 5251 } |
5258 } | 5252 } |
5259 | 5253 |
5260 // Maximum instance size for which allocations will be inlined. | 5254 // Maximum instance size for which allocations will be inlined. |
5261 static const int kMaxInlineSize = 64 * kPointerSize; | 5255 static const int kMaxInlineSize = 64 * kPointerSize; |
5262 | 5256 |
5263 HValue* context() { return OperandAt(0); } | 5257 HValue* context() { return OperandAt(0); } |
5264 HValue* size() { return OperandAt(1); } | 5258 HValue* size() { return OperandAt(1); } |
5265 | 5259 |
5266 virtual Representation RequiredInputRepresentation(int index) { | 5260 virtual Representation RequiredInputRepresentation(int index) { |
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6958 virtual bool IsDeletable() const { return true; } | 6952 virtual bool IsDeletable() const { return true; } |
6959 }; | 6953 }; |
6960 | 6954 |
6961 | 6955 |
6962 #undef DECLARE_INSTRUCTION | 6956 #undef DECLARE_INSTRUCTION |
6963 #undef DECLARE_CONCRETE_INSTRUCTION | 6957 #undef DECLARE_CONCRETE_INSTRUCTION |
6964 | 6958 |
6965 } } // namespace v8::internal | 6959 } } // namespace v8::internal |
6966 | 6960 |
6967 #endif // V8_HYDROGEN_INSTRUCTIONS_H_ | 6961 #endif // V8_HYDROGEN_INSTRUCTIONS_H_ |
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