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Side by Side Diff: src/interpreter/bytecode-register-allocator.h

Issue 1721723002: [interpreter] Clean super property handling. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Rebase. Created 4 years, 10 months ago
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1 // Copyright 2015 the V8 project authors. All rights reserved. 1 // Copyright 2015 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_INTERPRETER_BYTECODE_REGISTER_ALLOCATOR_H_ 5 #ifndef V8_INTERPRETER_BYTECODE_REGISTER_ALLOCATOR_H_
6 #define V8_INTERPRETER_BYTECODE_REGISTER_ALLOCATOR_H_ 6 #define V8_INTERPRETER_BYTECODE_REGISTER_ALLOCATOR_H_
7 7
8 #include "src/interpreter/bytecodes.h" 8 #include "src/interpreter/bytecodes.h"
9 #include "src/zone-containers.h" 9 #include "src/zone-containers.h"
10 10
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74 ~BytecodeRegisterAllocator(); 74 ~BytecodeRegisterAllocator();
75 Register NewRegister(); 75 Register NewRegister();
76 76
77 // Ensure |count| consecutive allocations are available. 77 // Ensure |count| consecutive allocations are available.
78 void PrepareForConsecutiveAllocations(size_t count); 78 void PrepareForConsecutiveAllocations(size_t count);
79 79
80 // Get the next consecutive allocation after calling 80 // Get the next consecutive allocation after calling
81 // PrepareForConsecutiveAllocations. 81 // PrepareForConsecutiveAllocations.
82 Register NextConsecutiveRegister(); 82 Register NextConsecutiveRegister();
83 83
84 // Prepare consecutive register allocations and initialize an array
85 // of registers with the allocations.
86 void PrepareAndInitializeConsecutiveAllocations(Register* registers,
87 size_t count);
88
89 // Returns true if |reg| is allocated in this allocator. 84 // Returns true if |reg| is allocated in this allocator.
90 bool RegisterIsAllocatedInThisScope(Register reg) const; 85 bool RegisterIsAllocatedInThisScope(Register reg) const;
91 86
92 // Returns true if unused consecutive allocations remain. 87 // Returns true if unused consecutive allocations remain.
93 bool HasConsecutiveAllocations() const { return next_consecutive_count_ > 0; } 88 bool HasConsecutiveAllocations() const { return next_consecutive_count_ > 0; }
94 89
95 private: 90 private:
96 TemporaryRegisterAllocator* base_allocator() const { return base_allocator_; } 91 TemporaryRegisterAllocator* base_allocator() const { return base_allocator_; }
97 92
98 TemporaryRegisterAllocator* base_allocator_; 93 TemporaryRegisterAllocator* base_allocator_;
99 ZoneVector<int> allocated_; 94 ZoneVector<int> allocated_;
100 int next_consecutive_register_; 95 int next_consecutive_register_;
101 int next_consecutive_count_; 96 int next_consecutive_count_;
102 97
103 DISALLOW_COPY_AND_ASSIGN(BytecodeRegisterAllocator); 98 DISALLOW_COPY_AND_ASSIGN(BytecodeRegisterAllocator);
104 }; 99 };
105 100
106 } // namespace interpreter 101 } // namespace interpreter
107 } // namespace internal 102 } // namespace internal
108 } // namespace v8 103 } // namespace v8
109 104
110 105
111 #endif // V8_INTERPRETER_BYTECODE_REGISTER_ALLOCATOR_H_ 106 #endif // V8_INTERPRETER_BYTECODE_REGISTER_ALLOCATOR_H_
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