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Side by Side Diff: src/compiler/instruction.h

Issue 1846083005: Revert of [compiler] Add relocatable pointer constants for wasm memory references. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 4 years, 8 months ago
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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 <iosfwd> 9 #include <iosfwd>
10 #include <map> 10 #include <map>
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940 940
941 explicit Constant(int32_t v); 941 explicit Constant(int32_t v);
942 explicit Constant(int64_t v) : type_(kInt64), value_(v) {} 942 explicit Constant(int64_t v) : type_(kInt64), value_(v) {}
943 explicit Constant(float v) : type_(kFloat32), value_(bit_cast<int32_t>(v)) {} 943 explicit Constant(float v) : type_(kFloat32), value_(bit_cast<int32_t>(v)) {}
944 explicit Constant(double v) : type_(kFloat64), value_(bit_cast<int64_t>(v)) {} 944 explicit Constant(double v) : type_(kFloat64), value_(bit_cast<int64_t>(v)) {}
945 explicit Constant(ExternalReference ref) 945 explicit Constant(ExternalReference ref)
946 : type_(kExternalReference), value_(bit_cast<intptr_t>(ref)) {} 946 : type_(kExternalReference), value_(bit_cast<intptr_t>(ref)) {}
947 explicit Constant(Handle<HeapObject> obj) 947 explicit Constant(Handle<HeapObject> obj)
948 : type_(kHeapObject), value_(bit_cast<intptr_t>(obj)) {} 948 : type_(kHeapObject), value_(bit_cast<intptr_t>(obj)) {}
949 explicit Constant(RpoNumber rpo) : type_(kRpoNumber), value_(rpo.ToInt()) {} 949 explicit Constant(RpoNumber rpo) : type_(kRpoNumber), value_(rpo.ToInt()) {}
950 explicit Constant(RelocatablePtrConstantInfo info);
951 950
952 Type type() const { return type_; } 951 Type type() const { return type_; }
953 952
954 RelocInfo::Mode rmode() const { return rmode_; }
955
956 int32_t ToInt32() const { 953 int32_t ToInt32() const {
957 DCHECK(type() == kInt32 || type() == kInt64); 954 DCHECK(type() == kInt32 || type() == kInt64);
958 const int32_t value = static_cast<int32_t>(value_); 955 const int32_t value = static_cast<int32_t>(value_);
959 DCHECK_EQ(value_, static_cast<int64_t>(value)); 956 DCHECK_EQ(value_, static_cast<int64_t>(value));
960 return value; 957 return value;
961 } 958 }
962 959
963 int64_t ToInt64() const { 960 int64_t ToInt64() const {
964 if (type() == kInt32) return ToInt32(); 961 if (type() == kInt32) return ToInt32();
965 DCHECK_EQ(kInt64, type()); 962 DCHECK_EQ(kInt64, type());
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988 } 985 }
989 986
990 Handle<HeapObject> ToHeapObject() const { 987 Handle<HeapObject> ToHeapObject() const {
991 DCHECK_EQ(kHeapObject, type()); 988 DCHECK_EQ(kHeapObject, type());
992 return bit_cast<Handle<HeapObject> >(static_cast<intptr_t>(value_)); 989 return bit_cast<Handle<HeapObject> >(static_cast<intptr_t>(value_));
993 } 990 }
994 991
995 private: 992 private:
996 Type type_; 993 Type type_;
997 int64_t value_; 994 int64_t value_;
998 RelocInfo::Mode rmode_;
999 }; 995 };
1000 996
1001 997
1002 std::ostream& operator<<(std::ostream& os, const Constant& constant); 998 std::ostream& operator<<(std::ostream& os, const Constant& constant);
1003 999
1004 1000
1005 // Forward declarations. 1001 // Forward declarations.
1006 class FrameStateDescriptor; 1002 class FrameStateDescriptor;
1007 1003
1008 1004
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1409 1405
1410 1406
1411 std::ostream& operator<<(std::ostream& os, 1407 std::ostream& operator<<(std::ostream& os,
1412 const PrintableInstructionSequence& code); 1408 const PrintableInstructionSequence& code);
1413 1409
1414 } // namespace compiler 1410 } // namespace compiler
1415 } // namespace internal 1411 } // namespace internal
1416 } // namespace v8 1412 } // namespace v8
1417 1413
1418 #endif // V8_COMPILER_INSTRUCTION_H_ 1414 #endif // V8_COMPILER_INSTRUCTION_H_
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