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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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5098 } | 5098 } |
5099 | 5099 |
5100 void MakeDoubleAligned() { | 5100 void MakeDoubleAligned() { |
5101 flags_ = static_cast<HAllocate::Flags>(flags_ | ALLOCATE_DOUBLE_ALIGNED); | 5101 flags_ = static_cast<HAllocate::Flags>(flags_ | ALLOCATE_DOUBLE_ALIGNED); |
5102 } | 5102 } |
5103 | 5103 |
5104 void UpdateSize(HValue* size) { | 5104 void UpdateSize(HValue* size) { |
5105 SetOperandAt(1, size); | 5105 SetOperandAt(1, size); |
5106 } | 5106 } |
5107 | 5107 |
| 5108 InstanceType instance_type() const { |
| 5109 return instance_type_; |
| 5110 } |
| 5111 |
5108 virtual void HandleSideEffectDominator(GVNFlag side_effect, | 5112 virtual void HandleSideEffectDominator(GVNFlag side_effect, |
5109 HValue* dominator) V8_OVERRIDE; | 5113 HValue* dominator) V8_OVERRIDE; |
5110 | 5114 |
5111 virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE; | 5115 virtual void PrintDataTo(StringStream* stream) V8_OVERRIDE; |
5112 | 5116 |
5113 DECLARE_CONCRETE_INSTRUCTION(Allocate) | 5117 DECLARE_CONCRETE_INSTRUCTION(Allocate) |
5114 | 5118 |
5115 private: | 5119 private: |
5116 enum Flags { | 5120 enum Flags { |
5117 ALLOCATE_IN_NEW_SPACE = 1 << 0, | 5121 ALLOCATE_IN_NEW_SPACE = 1 << 0, |
5118 ALLOCATE_IN_OLD_DATA_SPACE = 1 << 1, | 5122 ALLOCATE_IN_OLD_DATA_SPACE = 1 << 1, |
5119 ALLOCATE_IN_OLD_POINTER_SPACE = 1 << 2, | 5123 ALLOCATE_IN_OLD_POINTER_SPACE = 1 << 2, |
5120 ALLOCATE_DOUBLE_ALIGNED = 1 << 3, | 5124 ALLOCATE_DOUBLE_ALIGNED = 1 << 3, |
5121 PREFILL_WITH_FILLER = 1 << 4 | 5125 PREFILL_WITH_FILLER = 1 << 4 |
5122 }; | 5126 }; |
5123 | 5127 |
5124 HAllocate(HValue* context, | 5128 HAllocate(HValue* context, |
5125 HValue* size, | 5129 HValue* size, |
5126 HType type, | 5130 HType type, |
5127 PretenureFlag pretenure_flag, | 5131 PretenureFlag pretenure_flag, |
5128 InstanceType instance_type) | 5132 InstanceType instance_type) |
5129 : HTemplateInstruction<2>(type) { | 5133 : HTemplateInstruction<2>(type), |
| 5134 instance_type_(instance_type), |
| 5135 clear_next_map_word_(false) { |
5130 SetOperandAt(0, context); | 5136 SetOperandAt(0, context); |
5131 SetOperandAt(1, size); | 5137 SetOperandAt(1, size); |
5132 set_representation(Representation::Tagged()); | 5138 set_representation(Representation::Tagged()); |
5133 SetFlag(kTrackSideEffectDominators); | 5139 SetFlag(kTrackSideEffectDominators); |
5134 SetGVNFlag(kChangesNewSpacePromotion); | 5140 SetGVNFlag(kChangesNewSpacePromotion); |
5135 SetGVNFlag(kDependsOnNewSpacePromotion); | 5141 SetGVNFlag(kDependsOnNewSpacePromotion); |
5136 flags_ = pretenure_flag == TENURED | 5142 flags_ = pretenure_flag == TENURED |
5137 ? (Heap::TargetSpaceId(instance_type) == OLD_POINTER_SPACE | 5143 ? (Heap::TargetSpaceId(instance_type_) == OLD_POINTER_SPACE |
5138 ? ALLOCATE_IN_OLD_POINTER_SPACE : ALLOCATE_IN_OLD_DATA_SPACE) | 5144 ? ALLOCATE_IN_OLD_POINTER_SPACE : ALLOCATE_IN_OLD_DATA_SPACE) |
5139 : ALLOCATE_IN_NEW_SPACE; | 5145 : ALLOCATE_IN_NEW_SPACE; |
5140 if (instance_type == FIXED_DOUBLE_ARRAY_TYPE) { | 5146 if (instance_type_ == FIXED_DOUBLE_ARRAY_TYPE) { |
5141 flags_ = static_cast<HAllocate::Flags>(flags_ | | 5147 flags_ = static_cast<HAllocate::Flags>(flags_ | |
5142 ALLOCATE_DOUBLE_ALIGNED); | 5148 ALLOCATE_DOUBLE_ALIGNED); |
5143 } | 5149 } |
5144 } | 5150 } |
5145 | 5151 |
5146 Flags flags_; | 5152 Flags flags_; |
5147 Handle<Map> known_initial_map_; | 5153 Handle<Map> known_initial_map_; |
| 5154 InstanceType instance_type_; |
| 5155 bool clear_next_map_word_; |
5148 }; | 5156 }; |
5149 | 5157 |
5150 | 5158 |
5151 class HInnerAllocatedObject V8_FINAL : public HTemplateInstruction<1> { | 5159 class HInnerAllocatedObject V8_FINAL : public HTemplateInstruction<1> { |
5152 public: | 5160 public: |
5153 static HInnerAllocatedObject* New(Zone* zone, | 5161 static HInnerAllocatedObject* New(Zone* zone, |
5154 HValue* context, | 5162 HValue* context, |
5155 HValue* value, | 5163 HValue* value, |
5156 int offset, | 5164 int offset, |
5157 HType type = HType::Tagged()) { | 5165 HType type = HType::Tagged()) { |
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6793 virtual bool IsDeletable() const V8_OVERRIDE { return true; } | 6801 virtual bool IsDeletable() const V8_OVERRIDE { return true; } |
6794 }; | 6802 }; |
6795 | 6803 |
6796 | 6804 |
6797 #undef DECLARE_INSTRUCTION | 6805 #undef DECLARE_INSTRUCTION |
6798 #undef DECLARE_CONCRETE_INSTRUCTION | 6806 #undef DECLARE_CONCRETE_INSTRUCTION |
6799 | 6807 |
6800 } } // namespace v8::internal | 6808 } } // namespace v8::internal |
6801 | 6809 |
6802 #endif // V8_HYDROGEN_INSTRUCTIONS_H_ | 6810 #endif // V8_HYDROGEN_INSTRUCTIONS_H_ |
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