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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef V8_COMPILER_INSTRUCTION_H_ | 5 #ifndef V8_COMPILER_INSTRUCTION_H_ |
6 #define V8_COMPILER_INSTRUCTION_H_ | 6 #define V8_COMPILER_INSTRUCTION_H_ |
7 | 7 |
8 #include <deque> | 8 #include <deque> |
9 #include <map> | 9 #include <map> |
10 #include <set> | 10 #include <set> |
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647 DCHECK(!source_position_.IsInvalid()); | 647 DCHECK(!source_position_.IsInvalid()); |
648 DCHECK(!source_position_.IsUnknown()); | 648 DCHECK(!source_position_.IsUnknown()); |
649 } | 649 } |
650 | 650 |
651 SourcePosition source_position_; | 651 SourcePosition source_position_; |
652 }; | 652 }; |
653 | 653 |
654 | 654 |
655 class Constant FINAL { | 655 class Constant FINAL { |
656 public: | 656 public: |
657 enum Type { kInt32, kInt64, kFloat64, kExternalReference, kHeapObject }; | 657 enum Type { |
| 658 kInt32, |
| 659 kInt64, |
| 660 kFloat32, |
| 661 kFloat64, |
| 662 kExternalReference, |
| 663 kHeapObject |
| 664 }; |
658 | 665 |
659 explicit Constant(int32_t v) : type_(kInt32), value_(v) {} | 666 explicit Constant(int32_t v) : type_(kInt32), value_(v) {} |
660 explicit Constant(int64_t v) : type_(kInt64), value_(v) {} | 667 explicit Constant(int64_t v) : type_(kInt64), value_(v) {} |
| 668 explicit Constant(float v) : type_(kFloat32), value_(bit_cast<int32_t>(v)) {} |
661 explicit Constant(double v) : type_(kFloat64), value_(bit_cast<int64_t>(v)) {} | 669 explicit Constant(double v) : type_(kFloat64), value_(bit_cast<int64_t>(v)) {} |
662 explicit Constant(ExternalReference ref) | 670 explicit Constant(ExternalReference ref) |
663 : type_(kExternalReference), value_(bit_cast<intptr_t>(ref)) {} | 671 : type_(kExternalReference), value_(bit_cast<intptr_t>(ref)) {} |
664 explicit Constant(Handle<HeapObject> obj) | 672 explicit Constant(Handle<HeapObject> obj) |
665 : type_(kHeapObject), value_(bit_cast<intptr_t>(obj)) {} | 673 : type_(kHeapObject), value_(bit_cast<intptr_t>(obj)) {} |
666 | 674 |
667 Type type() const { return type_; } | 675 Type type() const { return type_; } |
668 | 676 |
669 int32_t ToInt32() const { | 677 int32_t ToInt32() const { |
670 DCHECK_EQ(kInt32, type()); | 678 DCHECK_EQ(kInt32, type()); |
671 return static_cast<int32_t>(value_); | 679 return static_cast<int32_t>(value_); |
672 } | 680 } |
673 | 681 |
674 int64_t ToInt64() const { | 682 int64_t ToInt64() const { |
675 if (type() == kInt32) return ToInt32(); | 683 if (type() == kInt32) return ToInt32(); |
676 DCHECK_EQ(kInt64, type()); | 684 DCHECK_EQ(kInt64, type()); |
677 return value_; | 685 return value_; |
678 } | 686 } |
679 | 687 |
| 688 float ToFloat32() const { |
| 689 DCHECK_EQ(kFloat32, type()); |
| 690 return bit_cast<float>(static_cast<int32_t>(value_)); |
| 691 } |
| 692 |
680 double ToFloat64() const { | 693 double ToFloat64() const { |
681 if (type() == kInt32) return ToInt32(); | 694 if (type() == kInt32) return ToInt32(); |
682 DCHECK_EQ(kFloat64, type()); | 695 DCHECK_EQ(kFloat64, type()); |
683 return bit_cast<double>(value_); | 696 return bit_cast<double>(value_); |
684 } | 697 } |
685 | 698 |
686 ExternalReference ToExternalReference() const { | 699 ExternalReference ToExternalReference() const { |
687 DCHECK_EQ(kExternalReference, type()); | 700 DCHECK_EQ(kExternalReference, type()); |
688 return bit_cast<ExternalReference>(static_cast<intptr_t>(value_)); | 701 return bit_cast<ExternalReference>(static_cast<intptr_t>(value_)); |
689 } | 702 } |
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931 DeoptimizationVector deoptimization_entries_; | 944 DeoptimizationVector deoptimization_entries_; |
932 }; | 945 }; |
933 | 946 |
934 OStream& operator<<(OStream& os, const InstructionSequence& code); | 947 OStream& operator<<(OStream& os, const InstructionSequence& code); |
935 | 948 |
936 } // namespace compiler | 949 } // namespace compiler |
937 } // namespace internal | 950 } // namespace internal |
938 } // namespace v8 | 951 } // namespace v8 |
939 | 952 |
940 #endif // V8_COMPILER_INSTRUCTION_H_ | 953 #endif // V8_COMPILER_INSTRUCTION_H_ |
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