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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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139 V(OuterContext) \ | 139 V(OuterContext) \ |
140 V(Parameter) \ | 140 V(Parameter) \ |
141 V(Power) \ | 141 V(Power) \ |
142 V(PushArgument) \ | 142 V(PushArgument) \ |
143 V(RegExpLiteral) \ | 143 V(RegExpLiteral) \ |
144 V(Return) \ | 144 V(Return) \ |
145 V(Sar) \ | 145 V(Sar) \ |
146 V(Shl) \ | 146 V(Shl) \ |
147 V(Shr) \ | 147 V(Shr) \ |
148 V(Simulate) \ | 148 V(Simulate) \ |
149 V(SoftDeoptimize) \ | |
150 V(StackCheck) \ | 149 V(StackCheck) \ |
151 V(StoreContextSlot) \ | 150 V(StoreContextSlot) \ |
152 V(StoreGlobalCell) \ | 151 V(StoreGlobalCell) \ |
153 V(StoreGlobalGeneric) \ | 152 V(StoreGlobalGeneric) \ |
154 V(StoreKeyedFastElement) \ | 153 V(StoreKeyedFastElement) \ |
155 V(StoreKeyedGeneric) \ | 154 V(StoreKeyedGeneric) \ |
156 V(StoreKeyedSpecializedArrayElement) \ | 155 V(StoreKeyedSpecializedArrayElement) \ |
157 V(StoreNamedField) \ | 156 V(StoreNamedField) \ |
158 V(StoreNamedGeneric) \ | 157 V(StoreNamedGeneric) \ |
159 V(StringAdd) \ | 158 V(StringAdd) \ |
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841 class HBlockEntry: public HTemplateInstruction<0> { | 840 class HBlockEntry: public HTemplateInstruction<0> { |
842 public: | 841 public: |
843 virtual Representation RequiredInputRepresentation(int index) const { | 842 virtual Representation RequiredInputRepresentation(int index) const { |
844 return Representation::None(); | 843 return Representation::None(); |
845 } | 844 } |
846 | 845 |
847 DECLARE_CONCRETE_INSTRUCTION(BlockEntry) | 846 DECLARE_CONCRETE_INSTRUCTION(BlockEntry) |
848 }; | 847 }; |
849 | 848 |
850 | 849 |
851 // We insert soft-deoptimize when we hit code with unknown typefeedback, | |
852 // so that we get a chance of re-optimizing with useful typefeedback. | |
853 // HSoftDeoptimize does not end a basic block as opposed to HDeoptimize. | |
854 class HSoftDeoptimize: public HTemplateInstruction<0> { | |
855 public: | |
856 virtual Representation RequiredInputRepresentation(int index) const { | |
857 return Representation::None(); | |
858 } | |
859 | |
860 DECLARE_CONCRETE_INSTRUCTION(SoftDeoptimize) | |
861 }; | |
862 | |
863 | |
864 class HDeoptimize: public HControlInstruction { | 850 class HDeoptimize: public HControlInstruction { |
865 public: | 851 public: |
866 explicit HDeoptimize(int environment_length) | 852 explicit HDeoptimize(int environment_length) |
867 : HControlInstruction(NULL, NULL), | 853 : HControlInstruction(NULL, NULL), |
868 values_(environment_length) { } | 854 values_(environment_length) { } |
869 | 855 |
870 virtual Representation RequiredInputRepresentation(int index) const { | 856 virtual Representation RequiredInputRepresentation(int index) const { |
871 return Representation::None(); | 857 return Representation::None(); |
872 } | 858 } |
873 | 859 |
874 virtual int OperandCount() { return values_.length(); } | 860 virtual int OperandCount() { return values_.length(); } |
875 virtual HValue* OperandAt(int index) { return values_[index]; } | 861 virtual HValue* OperandAt(int index) { return values_[index]; } |
876 virtual void PrintDataTo(StringStream* stream); | |
877 | 862 |
878 void AddEnvironmentValue(HValue* value) { | 863 void AddEnvironmentValue(HValue* value) { |
879 values_.Add(NULL); | 864 values_.Add(NULL); |
880 SetOperandAt(values_.length() - 1, value); | 865 SetOperandAt(values_.length() - 1, value); |
881 } | 866 } |
882 | 867 |
883 DECLARE_CONCRETE_INSTRUCTION(Deoptimize) | 868 DECLARE_CONCRETE_INSTRUCTION(Deoptimize) |
884 | 869 |
885 enum UseEnvironment { | 870 enum UseEnvironment { |
886 kNoUses, | 871 kNoUses, |
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4047 | 4032 |
4048 DECLARE_CONCRETE_INSTRUCTION(In) | 4033 DECLARE_CONCRETE_INSTRUCTION(In) |
4049 }; | 4034 }; |
4050 | 4035 |
4051 #undef DECLARE_INSTRUCTION | 4036 #undef DECLARE_INSTRUCTION |
4052 #undef DECLARE_CONCRETE_INSTRUCTION | 4037 #undef DECLARE_CONCRETE_INSTRUCTION |
4053 | 4038 |
4054 } } // namespace v8::internal | 4039 } } // namespace v8::internal |
4055 | 4040 |
4056 #endif // V8_HYDROGEN_INSTRUCTIONS_H_ | 4041 #endif // V8_HYDROGEN_INSTRUCTIONS_H_ |
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