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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_COMPILER_FRAME_STATES_H_ | 5 #ifndef V8_COMPILER_FRAME_STATES_H_ |
| 6 #define V8_COMPILER_FRAME_STATES_H_ | 6 #define V8_COMPILER_FRAME_STATES_H_ |
| 7 | 7 |
| 8 #include "src/handles.h" | 8 #include "src/handles.h" |
| 9 #include "src/utils.h" | 9 #include "src/utils.h" |
| 10 | 10 |
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| 69 OutputFrameStateCombine(Kind kind, size_t parameter) | 69 OutputFrameStateCombine(Kind kind, size_t parameter) |
| 70 : kind_(kind), parameter_(parameter) {} | 70 : kind_(kind), parameter_(parameter) {} |
| 71 | 71 |
| 72 Kind const kind_; | 72 Kind const kind_; |
| 73 size_t const parameter_; | 73 size_t const parameter_; |
| 74 }; | 74 }; |
| 75 | 75 |
| 76 | 76 |
| 77 // The type of stack frame that a FrameState node represents. | 77 // The type of stack frame that a FrameState node represents. |
| 78 enum class FrameStateType { | 78 enum class FrameStateType { |
| 79 kJavaScriptFunction, // Represents an unoptimized JavaScriptFrame. | 79 kJavaScriptFunction, // Represents an unoptimized JavaScriptFrame. |
| 80 kArgumentsAdaptor, // Represents an ArgumentsAdaptorFrame. | 80 kInterpretedFunction, // Represents an InterpretedFrame. |
| 81 kConstructStub // Represents a ConstructStubFrame. | 81 kArgumentsAdaptor, // Represents an ArgumentsAdaptorFrame. |
| 82 kConstructStub // Represents a ConstructStubFrame. |
| 82 }; | 83 }; |
| 83 | 84 |
| 84 | 85 |
| 85 enum ContextCallingMode { | 86 enum ContextCallingMode { |
| 86 CALL_MAINTAINS_NATIVE_CONTEXT, | 87 CALL_MAINTAINS_NATIVE_CONTEXT, |
| 87 CALL_CHANGES_NATIVE_CONTEXT | 88 CALL_CHANGES_NATIVE_CONTEXT |
| 88 }; | 89 }; |
| 89 | 90 |
| 90 | 91 |
| 91 class FrameStateFunctionInfo { | 92 class FrameStateFunctionInfo { |
| 92 public: | 93 public: |
| 93 FrameStateFunctionInfo(FrameStateType type, int parameter_count, | 94 FrameStateFunctionInfo(FrameStateType type, int parameter_count, |
| 94 int local_count, | 95 int local_count, |
| 95 Handle<SharedFunctionInfo> shared_info, | 96 Handle<SharedFunctionInfo> shared_info, |
| 96 ContextCallingMode context_calling_mode) | 97 ContextCallingMode context_calling_mode) |
| 97 : type_(type), | 98 : type_(type), |
| 98 parameter_count_(parameter_count), | 99 parameter_count_(parameter_count), |
| 99 local_count_(local_count), | 100 local_count_(local_count), |
| 100 shared_info_(shared_info), | 101 shared_info_(shared_info), |
| 101 context_calling_mode_(context_calling_mode) {} | 102 context_calling_mode_(context_calling_mode) {} |
| 102 | 103 |
| 103 int local_count() const { return local_count_; } | 104 int local_count() const { return local_count_; } |
| 104 int parameter_count() const { return parameter_count_; } | 105 int parameter_count() const { return parameter_count_; } |
| 105 Handle<SharedFunctionInfo> shared_info() const { return shared_info_; } | 106 Handle<SharedFunctionInfo> shared_info() const { return shared_info_; } |
| 106 FrameStateType type() const { return type_; } | 107 FrameStateType type() const { return type_; } |
| 107 ContextCallingMode context_calling_mode() const { | 108 ContextCallingMode context_calling_mode() const { |
| 108 return context_calling_mode_; | 109 return context_calling_mode_; |
| 109 } | 110 } |
| 110 | 111 |
| 112 static bool IsJSFunctionType(FrameStateType type) { |
| 113 return type == FrameStateType::kJavaScriptFunction || |
| 114 type == FrameStateType::kInterpretedFunction; |
| 115 } |
| 116 |
| 111 private: | 117 private: |
| 112 FrameStateType const type_; | 118 FrameStateType const type_; |
| 113 int const parameter_count_; | 119 int const parameter_count_; |
| 114 int const local_count_; | 120 int const local_count_; |
| 115 Handle<SharedFunctionInfo> const shared_info_; | 121 Handle<SharedFunctionInfo> const shared_info_; |
| 116 ContextCallingMode context_calling_mode_; | 122 ContextCallingMode context_calling_mode_; |
| 117 }; | 123 }; |
| 118 | 124 |
| 119 | 125 |
| 120 class FrameStateInfo final { | 126 class FrameStateInfo final { |
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| 162 static const int kFrameStateContextInput = 3; | 168 static const int kFrameStateContextInput = 3; |
| 163 static const int kFrameStateFunctionInput = 4; | 169 static const int kFrameStateFunctionInput = 4; |
| 164 static const int kFrameStateOuterStateInput = 5; | 170 static const int kFrameStateOuterStateInput = 5; |
| 165 static const int kFrameStateInputCount = kFrameStateOuterStateInput + 1; | 171 static const int kFrameStateInputCount = kFrameStateOuterStateInput + 1; |
| 166 | 172 |
| 167 } // namespace compiler | 173 } // namespace compiler |
| 168 } // namespace internal | 174 } // namespace internal |
| 169 } // namespace v8 | 175 } // namespace v8 |
| 170 | 176 |
| 171 #endif // V8_COMPILER_FRAME_STATES_H_ | 177 #endif // V8_COMPILER_FRAME_STATES_H_ |
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