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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 #include "src/interpreter/bytecode-register.h" | 5 #include "src/interpreter/bytecode-register.h" |
6 | 6 |
7 #include "src/frames.h" | |
8 | |
9 namespace v8 { | 7 namespace v8 { |
10 namespace internal { | 8 namespace internal { |
11 namespace interpreter { | 9 namespace interpreter { |
12 | 10 |
13 static const int kLastParamRegisterIndex = | 11 static const int kLastParamRegisterIndex = |
14 (InterpreterFrameConstants::kRegisterFileFromFp - | 12 (InterpreterFrameConstants::kRegisterFileFromFp - |
15 InterpreterFrameConstants::kLastParamFromFp) / | 13 InterpreterFrameConstants::kLastParamFromFp) / |
16 kPointerSize; | 14 kPointerSize; |
17 static const int kFunctionClosureRegisterIndex = | 15 static const int kFunctionClosureRegisterIndex = |
18 (InterpreterFrameConstants::kRegisterFileFromFp - | 16 (InterpreterFrameConstants::kRegisterFileFromFp - |
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32 kPointerSize; | 30 kPointerSize; |
33 static const int kBytecodeOffsetRegisterIndex = | 31 static const int kBytecodeOffsetRegisterIndex = |
34 (InterpreterFrameConstants::kRegisterFileFromFp - | 32 (InterpreterFrameConstants::kRegisterFileFromFp - |
35 InterpreterFrameConstants::kBytecodeOffsetFromFp) / | 33 InterpreterFrameConstants::kBytecodeOffsetFromFp) / |
36 kPointerSize; | 34 kPointerSize; |
37 static const int kCallerPCOffsetRegisterIndex = | 35 static const int kCallerPCOffsetRegisterIndex = |
38 (InterpreterFrameConstants::kRegisterFileFromFp - | 36 (InterpreterFrameConstants::kRegisterFileFromFp - |
39 InterpreterFrameConstants::kCallerPCOffsetFromFp) / | 37 InterpreterFrameConstants::kCallerPCOffsetFromFp) / |
40 kPointerSize; | 38 kPointerSize; |
41 | 39 |
42 STATIC_CONST_MEMBER_DEFINITION const int Register::kInvalidIndex = kMaxInt; | |
43 STATIC_CONST_MEMBER_DEFINITION const int Register::kRegisterFileStartOffset = | |
44 InterpreterFrameConstants::kRegisterFileFromFp / kPointerSize; | |
45 | |
46 Register Register::FromParameterIndex(int index, int parameter_count) { | 40 Register Register::FromParameterIndex(int index, int parameter_count) { |
47 DCHECK_GE(index, 0); | 41 DCHECK_GE(index, 0); |
48 DCHECK_LT(index, parameter_count); | 42 DCHECK_LT(index, parameter_count); |
49 int register_index = kLastParamRegisterIndex - parameter_count + index + 1; | 43 int register_index = kLastParamRegisterIndex - parameter_count + index + 1; |
50 DCHECK_LT(register_index, 0); | 44 DCHECK_LT(register_index, 0); |
51 return Register(register_index); | 45 return Register(register_index); |
52 } | 46 } |
53 | 47 |
54 int Register::ToParameterIndex(int parameter_count) const { | 48 int Register::ToParameterIndex(int parameter_count) const { |
55 DCHECK(is_parameter()); | 49 DCHECK(is_parameter()); |
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146 } else { | 140 } else { |
147 std::ostringstream s; | 141 std::ostringstream s; |
148 s << "r" << index(); | 142 s << "r" << index(); |
149 return s.str(); | 143 return s.str(); |
150 } | 144 } |
151 } | 145 } |
152 | 146 |
153 } // namespace interpreter | 147 } // namespace interpreter |
154 } // namespace internal | 148 } // namespace internal |
155 } // namespace v8 | 149 } // namespace v8 |
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