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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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3706 return representation(); | 3706 return representation(); |
3707 } | 3707 } |
3708 | 3708 |
3709 void SetOperandPositions(Zone* zone, | 3709 void SetOperandPositions(Zone* zone, |
3710 HSourcePosition left_pos, | 3710 HSourcePosition left_pos, |
3711 HSourcePosition right_pos) { | 3711 HSourcePosition right_pos) { |
3712 set_operand_position(zone, 1, left_pos); | 3712 set_operand_position(zone, 1, left_pos); |
3713 set_operand_position(zone, 2, right_pos); | 3713 set_operand_position(zone, 2, right_pos); |
3714 } | 3714 } |
3715 | 3715 |
| 3716 bool RightIsPowerOf2() { |
| 3717 if (!right()->IsInteger32Constant()) return false; |
| 3718 int32_t value = right()->GetInteger32Constant(); |
| 3719 return value != 0 && (IsPowerOf2(value) || IsPowerOf2(-value)); |
| 3720 } |
| 3721 |
3716 DECLARE_ABSTRACT_INSTRUCTION(BinaryOperation) | 3722 DECLARE_ABSTRACT_INSTRUCTION(BinaryOperation) |
3717 | 3723 |
3718 private: | 3724 private: |
3719 bool IgnoreObservedOutputRepresentation(Representation current_rep); | 3725 bool IgnoreObservedOutputRepresentation(Representation current_rep); |
3720 | 3726 |
3721 Representation observed_input_representation_[2]; | 3727 Representation observed_input_representation_[2]; |
3722 Representation observed_output_representation_; | 3728 Representation observed_output_representation_; |
3723 }; | 3729 }; |
3724 | 3730 |
3725 | 3731 |
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4082 if (to.IsTagged() && | 4088 if (to.IsTagged() && |
4083 (left()->ToNumberCanBeObserved() || right()->ToNumberCanBeObserved())) { | 4089 (left()->ToNumberCanBeObserved() || right()->ToNumberCanBeObserved())) { |
4084 SetAllSideEffects(); | 4090 SetAllSideEffects(); |
4085 ClearFlag(kUseGVN); | 4091 ClearFlag(kUseGVN); |
4086 } else { | 4092 } else { |
4087 ClearAllSideEffects(); | 4093 ClearAllSideEffects(); |
4088 SetFlag(kUseGVN); | 4094 SetFlag(kUseGVN); |
4089 } | 4095 } |
4090 } | 4096 } |
4091 | 4097 |
4092 bool RightIsPowerOf2() { | |
4093 if (!right()->IsInteger32Constant()) return false; | |
4094 int32_t value = right()->GetInteger32Constant(); | |
4095 return value != 0 && (IsPowerOf2(value) || IsPowerOf2(-value)); | |
4096 } | |
4097 | |
4098 DECLARE_ABSTRACT_INSTRUCTION(ArithmeticBinaryOperation) | 4098 DECLARE_ABSTRACT_INSTRUCTION(ArithmeticBinaryOperation) |
4099 | 4099 |
4100 private: | 4100 private: |
4101 virtual bool IsDeletable() const V8_OVERRIDE { return true; } | 4101 virtual bool IsDeletable() const V8_OVERRIDE { return true; } |
4102 }; | 4102 }; |
4103 | 4103 |
4104 | 4104 |
4105 class HCompareGeneric V8_FINAL : public HBinaryOperation { | 4105 class HCompareGeneric V8_FINAL : public HBinaryOperation { |
4106 public: | 4106 public: |
4107 DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P3(HCompareGeneric, HValue*, | 4107 DECLARE_INSTRUCTION_WITH_CONTEXT_FACTORY_P3(HCompareGeneric, HValue*, |
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7485 virtual bool IsDeletable() const V8_OVERRIDE { return true; } | 7485 virtual bool IsDeletable() const V8_OVERRIDE { return true; } |
7486 }; | 7486 }; |
7487 | 7487 |
7488 | 7488 |
7489 #undef DECLARE_INSTRUCTION | 7489 #undef DECLARE_INSTRUCTION |
7490 #undef DECLARE_CONCRETE_INSTRUCTION | 7490 #undef DECLARE_CONCRETE_INSTRUCTION |
7491 | 7491 |
7492 } } // namespace v8::internal | 7492 } } // namespace v8::internal |
7493 | 7493 |
7494 #endif // V8_HYDROGEN_INSTRUCTIONS_H_ | 7494 #endif // V8_HYDROGEN_INSTRUCTIONS_H_ |
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