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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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3755 } | 3755 } |
3756 | 3756 |
3757 bool RightIsPowerOf2() { | 3757 bool RightIsPowerOf2() { |
3758 if (!right()->IsInteger32Constant()) return false; | 3758 if (!right()->IsInteger32Constant()) return false; |
3759 int32_t value = right()->GetInteger32Constant(); | 3759 int32_t value = right()->GetInteger32Constant(); |
3760 return value != 0 && (IsPowerOf2(value) || IsPowerOf2(-value)); | 3760 return value != 0 && (IsPowerOf2(value) || IsPowerOf2(-value)); |
3761 } | 3761 } |
3762 | 3762 |
3763 DECLARE_ABSTRACT_INSTRUCTION(BinaryOperation) | 3763 DECLARE_ABSTRACT_INSTRUCTION(BinaryOperation) |
3764 | 3764 |
| 3765 protected: |
| 3766 Range* InferRangeForDiv(Zone* zone); |
| 3767 |
3765 private: | 3768 private: |
3766 bool IgnoreObservedOutputRepresentation(Representation current_rep); | 3769 bool IgnoreObservedOutputRepresentation(Representation current_rep); |
3767 | 3770 |
3768 Representation observed_input_representation_[2]; | 3771 Representation observed_input_representation_[2]; |
3769 Representation observed_output_representation_; | 3772 Representation observed_output_representation_; |
3770 }; | 3773 }; |
3771 | 3774 |
3772 | 3775 |
3773 class HWrapReceiver V8_FINAL : public HTemplateInstruction<2> { | 3776 class HWrapReceiver V8_FINAL : public HTemplateInstruction<2> { |
3774 public: | 3777 public: |
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4095 | 4098 |
4096 protected: | 4099 protected: |
4097 virtual bool DataEquals(HValue* other) V8_OVERRIDE { return true; } | 4100 virtual bool DataEquals(HValue* other) V8_OVERRIDE { return true; } |
4098 | 4101 |
4099 private: | 4102 private: |
4100 HMathFloorOfDiv(HValue* context, HValue* left, HValue* right) | 4103 HMathFloorOfDiv(HValue* context, HValue* left, HValue* right) |
4101 : HBinaryOperation(context, left, right) { | 4104 : HBinaryOperation(context, left, right) { |
4102 set_representation(Representation::Integer32()); | 4105 set_representation(Representation::Integer32()); |
4103 SetFlag(kUseGVN); | 4106 SetFlag(kUseGVN); |
4104 SetFlag(kCanOverflow); | 4107 SetFlag(kCanOverflow); |
4105 if (!right->IsConstant()) { | 4108 SetFlag(kCanBeDivByZero); |
4106 SetFlag(kCanBeDivByZero); | |
4107 } | |
4108 SetFlag(kAllowUndefinedAsNaN); | 4109 SetFlag(kAllowUndefinedAsNaN); |
4109 } | 4110 } |
4110 | 4111 |
| 4112 virtual Range* InferRange(Zone* zone) V8_OVERRIDE; |
| 4113 |
4111 virtual bool IsDeletable() const V8_OVERRIDE { return true; } | 4114 virtual bool IsDeletable() const V8_OVERRIDE { return true; } |
4112 }; | 4115 }; |
4113 | 4116 |
4114 | 4117 |
4115 class HArithmeticBinaryOperation : public HBinaryOperation { | 4118 class HArithmeticBinaryOperation : public HBinaryOperation { |
4116 public: | 4119 public: |
4117 HArithmeticBinaryOperation(HValue* context, HValue* left, HValue* right) | 4120 HArithmeticBinaryOperation(HValue* context, HValue* left, HValue* right) |
4118 : HBinaryOperation(context, left, right, HType::TaggedNumber()) { | 4121 : HBinaryOperation(context, left, right, HType::TaggedNumber()) { |
4119 SetAllSideEffects(); | 4122 SetAllSideEffects(); |
4120 SetFlag(kFlexibleRepresentation); | 4123 SetFlag(kFlexibleRepresentation); |
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7516 virtual bool IsDeletable() const V8_OVERRIDE { return true; } | 7519 virtual bool IsDeletable() const V8_OVERRIDE { return true; } |
7517 }; | 7520 }; |
7518 | 7521 |
7519 | 7522 |
7520 #undef DECLARE_INSTRUCTION | 7523 #undef DECLARE_INSTRUCTION |
7521 #undef DECLARE_CONCRETE_INSTRUCTION | 7524 #undef DECLARE_CONCRETE_INSTRUCTION |
7522 | 7525 |
7523 } } // namespace v8::internal | 7526 } } // namespace v8::internal |
7524 | 7527 |
7525 #endif // V8_HYDROGEN_INSTRUCTIONS_H_ | 7528 #endif // V8_HYDROGEN_INSTRUCTIONS_H_ |
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