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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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6174 ElementsKind from_kind_; | 6174 ElementsKind from_kind_; |
6175 ElementsKind to_kind_; | 6175 ElementsKind to_kind_; |
6176 }; | 6176 }; |
6177 | 6177 |
6178 | 6178 |
6179 class HStringAdd: public HBinaryOperation { | 6179 class HStringAdd: public HBinaryOperation { |
6180 public: | 6180 public: |
6181 static HInstruction* New(Zone* zone, | 6181 static HInstruction* New(Zone* zone, |
6182 HValue* context, | 6182 HValue* context, |
6183 HValue* left, | 6183 HValue* left, |
6184 HValue* right); | 6184 HValue* right, |
| 6185 StringAddFlags flags = NO_STRING_CHECK_IN_STUB); |
| 6186 |
| 6187 StringAddFlags flags() const { return flags_; } |
6185 | 6188 |
6186 virtual Representation RequiredInputRepresentation(int index) { | 6189 virtual Representation RequiredInputRepresentation(int index) { |
6187 return Representation::Tagged(); | 6190 return Representation::Tagged(); |
6188 } | 6191 } |
6189 | 6192 |
6190 virtual HType CalculateInferredType() { | 6193 virtual HType CalculateInferredType() { |
6191 return HType::String(); | 6194 return HType::String(); |
6192 } | 6195 } |
6193 | 6196 |
6194 DECLARE_CONCRETE_INSTRUCTION(StringAdd) | 6197 DECLARE_CONCRETE_INSTRUCTION(StringAdd) |
6195 | 6198 |
6196 protected: | 6199 protected: |
6197 virtual bool DataEquals(HValue* other) { return true; } | 6200 virtual bool DataEquals(HValue* other) { return true; } |
6198 | 6201 |
6199 | |
6200 private: | 6202 private: |
6201 HStringAdd(HValue* context, HValue* left, HValue* right) | 6203 HStringAdd(HValue* context, HValue* left, HValue* right, StringAddFlags flags) |
6202 : HBinaryOperation(context, left, right) { | 6204 : HBinaryOperation(context, left, right), flags_(flags) { |
6203 set_representation(Representation::Tagged()); | 6205 set_representation(Representation::Tagged()); |
6204 SetFlag(kUseGVN); | 6206 SetFlag(kUseGVN); |
6205 SetGVNFlag(kDependsOnMaps); | 6207 SetGVNFlag(kDependsOnMaps); |
6206 SetGVNFlag(kChangesNewSpacePromotion); | 6208 SetGVNFlag(kChangesNewSpacePromotion); |
6207 } | 6209 } |
6208 | 6210 |
6209 // TODO(svenpanne) Might be safe, but leave it out until we know for sure. | 6211 // TODO(svenpanne) Might be safe, but leave it out until we know for sure. |
6210 // virtual bool IsDeletable() const { return true; } | 6212 // virtual bool IsDeletable() const { return true; } |
| 6213 |
| 6214 const StringAddFlags flags_; |
6211 }; | 6215 }; |
6212 | 6216 |
6213 | 6217 |
6214 class HStringCharCodeAt: public HTemplateInstruction<3> { | 6218 class HStringCharCodeAt: public HTemplateInstruction<3> { |
6215 public: | 6219 public: |
6216 HStringCharCodeAt(HValue* context, HValue* string, HValue* index) { | 6220 HStringCharCodeAt(HValue* context, HValue* string, HValue* index) { |
6217 SetOperandAt(0, context); | 6221 SetOperandAt(0, context); |
6218 SetOperandAt(1, string); | 6222 SetOperandAt(1, string); |
6219 SetOperandAt(2, index); | 6223 SetOperandAt(2, index); |
6220 set_representation(Representation::Integer32()); | 6224 set_representation(Representation::Integer32()); |
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6681 virtual bool IsDeletable() const { return true; } | 6685 virtual bool IsDeletable() const { return true; } |
6682 }; | 6686 }; |
6683 | 6687 |
6684 | 6688 |
6685 #undef DECLARE_INSTRUCTION | 6689 #undef DECLARE_INSTRUCTION |
6686 #undef DECLARE_CONCRETE_INSTRUCTION | 6690 #undef DECLARE_CONCRETE_INSTRUCTION |
6687 | 6691 |
6688 } } // namespace v8::internal | 6692 } } // namespace v8::internal |
6689 | 6693 |
6690 #endif // V8_HYDROGEN_INSTRUCTIONS_H_ | 6694 #endif // V8_HYDROGEN_INSTRUCTIONS_H_ |
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