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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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3260 | 3260 |
3261 bool IsCell() const { | 3261 bool IsCell() const { |
3262 return is_cell_; | 3262 return is_cell_; |
3263 } | 3263 } |
3264 | 3264 |
3265 virtual Representation RequiredInputRepresentation(int index) { | 3265 virtual Representation RequiredInputRepresentation(int index) { |
3266 return Representation::None(); | 3266 return Representation::None(); |
3267 } | 3267 } |
3268 | 3268 |
3269 virtual Representation KnownOptimalRepresentation() { | 3269 virtual Representation KnownOptimalRepresentation() { |
3270 if (HasSmiValue() && kSmiValueSize == 31) return Representation::Smi(); | 3270 if (HasSmiValue() && SmiValuesAre31Bits()) return Representation::Smi(); |
3271 if (HasInteger32Value()) return Representation::Integer32(); | 3271 if (HasInteger32Value()) return Representation::Integer32(); |
3272 if (HasNumberValue()) return Representation::Double(); | 3272 if (HasNumberValue()) return Representation::Double(); |
3273 if (HasExternalReferenceValue()) return Representation::External(); | 3273 if (HasExternalReferenceValue()) return Representation::External(); |
3274 return Representation::Tagged(); | 3274 return Representation::Tagged(); |
3275 } | 3275 } |
3276 | 3276 |
3277 virtual bool EmitAtUses(); | 3277 virtual bool EmitAtUses(); |
3278 virtual void PrintDataTo(StringStream* stream); | 3278 virtual void PrintDataTo(StringStream* stream); |
3279 bool IsInteger() { return handle()->IsSmi(); } | 3279 bool IsInteger() { return handle()->IsSmi(); } |
3280 HConstant* CopyToRepresentation(Representation r, Zone* zone) const; | 3280 HConstant* CopyToRepresentation(Representation r, Zone* zone) const; |
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5689 class ArrayInstructionInterface { | 5689 class ArrayInstructionInterface { |
5690 public: | 5690 public: |
5691 virtual HValue* GetKey() = 0; | 5691 virtual HValue* GetKey() = 0; |
5692 virtual void SetKey(HValue* key) = 0; | 5692 virtual void SetKey(HValue* key) = 0; |
5693 virtual void SetIndexOffset(uint32_t index_offset) = 0; | 5693 virtual void SetIndexOffset(uint32_t index_offset) = 0; |
5694 virtual bool IsDehoisted() = 0; | 5694 virtual bool IsDehoisted() = 0; |
5695 virtual void SetDehoisted(bool is_dehoisted) = 0; | 5695 virtual void SetDehoisted(bool is_dehoisted) = 0; |
5696 virtual ~ArrayInstructionInterface() { }; | 5696 virtual ~ArrayInstructionInterface() { }; |
5697 | 5697 |
5698 static Representation KeyedAccessIndexRequirement(Representation r) { | 5698 static Representation KeyedAccessIndexRequirement(Representation r) { |
5699 return r.IsInteger32() || kSmiValueSize != 31 | 5699 return r.IsInteger32() || SmiValuesAre32Bits() |
5700 ? Representation::Integer32() : Representation::Smi(); | 5700 ? Representation::Integer32() : Representation::Smi(); |
5701 } | 5701 } |
5702 }; | 5702 }; |
5703 | 5703 |
5704 | 5704 |
5705 enum LoadKeyedHoleMode { | 5705 enum LoadKeyedHoleMode { |
5706 NEVER_RETURN_HOLE, | 5706 NEVER_RETURN_HOLE, |
5707 ALLOW_RETURN_HOLE | 5707 ALLOW_RETURN_HOLE |
5708 }; | 5708 }; |
5709 | 5709 |
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6778 virtual bool IsDeletable() const { return true; } | 6778 virtual bool IsDeletable() const { return true; } |
6779 }; | 6779 }; |
6780 | 6780 |
6781 | 6781 |
6782 #undef DECLARE_INSTRUCTION | 6782 #undef DECLARE_INSTRUCTION |
6783 #undef DECLARE_CONCRETE_INSTRUCTION | 6783 #undef DECLARE_CONCRETE_INSTRUCTION |
6784 | 6784 |
6785 } } // namespace v8::internal | 6785 } } // namespace v8::internal |
6786 | 6786 |
6787 #endif // V8_HYDROGEN_INSTRUCTIONS_H_ | 6787 #endif // V8_HYDROGEN_INSTRUCTIONS_H_ |
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