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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_AST_GRAPH_BUILDER_H_ | 5 #ifndef V8_COMPILER_AST_GRAPH_BUILDER_H_ |
| 6 #define V8_COMPILER_AST_GRAPH_BUILDER_H_ | 6 #define V8_COMPILER_AST_GRAPH_BUILDER_H_ |
| 7 | 7 |
| 8 #include "src/ast/ast.h" | 8 #include "src/ast/ast.h" |
| 9 #include "src/compiler/compiler-source-position-table.h" | 9 #include "src/compiler/compiler-source-position-table.h" |
| 10 #include "src/compiler/js-graph.h" | 10 #include "src/compiler/js-graph.h" |
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| 87 | 87 |
| 88 // Stack of control scopes currently entered by the visitor. | 88 // Stack of control scopes currently entered by the visitor. |
| 89 ControlScope* execution_control_; | 89 ControlScope* execution_control_; |
| 90 | 90 |
| 91 // Stack of context objects pushed onto the chain by the visitor. | 91 // Stack of context objects pushed onto the chain by the visitor. |
| 92 ContextScope* execution_context_; | 92 ContextScope* execution_context_; |
| 93 | 93 |
| 94 // Nodes representing values in the activation record. | 94 // Nodes representing values in the activation record. |
| 95 SetOncePointer<Node> function_closure_; | 95 SetOncePointer<Node> function_closure_; |
| 96 SetOncePointer<Node> function_context_; | 96 SetOncePointer<Node> function_context_; |
| 97 SetOncePointer<Node> new_target_; | |
| 98 | 97 |
| 99 // Temporary storage for building node input lists. | 98 // Temporary storage for building node input lists. |
| 100 int input_buffer_size_; | 99 int input_buffer_size_; |
| 101 Node** input_buffer_; | 100 Node** input_buffer_; |
| 102 | 101 |
| 103 // Optimization to cache loaded feedback vector. | 102 // Optimization to cache loaded feedback vector. |
| 104 SetOncePointer<Node> feedback_vector_; | 103 SetOncePointer<Node> feedback_vector_; |
| 105 | 104 |
| 106 // Optimization to cache empty frame state. | 105 // Optimization to cache empty frame state. |
| 107 SetOncePointer<Node> empty_frame_state_; | 106 SetOncePointer<Node> empty_frame_state_; |
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| 154 // Create the main graph body by visiting the AST. | 153 // Create the main graph body by visiting the AST. |
| 155 void CreateGraphBody(bool stack_check); | 154 void CreateGraphBody(bool stack_check); |
| 156 | 155 |
| 157 // Get or create the node that represents the incoming function closure. | 156 // Get or create the node that represents the incoming function closure. |
| 158 Node* GetFunctionClosureForContext(); | 157 Node* GetFunctionClosureForContext(); |
| 159 Node* GetFunctionClosure(); | 158 Node* GetFunctionClosure(); |
| 160 | 159 |
| 161 // Get or create the node that represents the incoming function context. | 160 // Get or create the node that represents the incoming function context. |
| 162 Node* GetFunctionContext(); | 161 Node* GetFunctionContext(); |
| 163 | 162 |
| 164 // Get or create the node that represents the incoming new target value. | |
| 165 Node* GetNewTarget(); | |
| 166 | |
| 167 // Get or create the node that represents the empty frame state. | 163 // Get or create the node that represents the empty frame state. |
| 168 Node* GetEmptyFrameState(); | 164 Node* GetEmptyFrameState(); |
| 169 | 165 |
| 170 // Node creation helpers. | 166 // Node creation helpers. |
| 171 Node* NewNode(const Operator* op, bool incomplete = false) { | 167 Node* NewNode(const Operator* op, bool incomplete = false) { |
| 172 return MakeNode(op, 0, static_cast<Node**>(nullptr), incomplete); | 168 return MakeNode(op, 0, static_cast<Node**>(nullptr), incomplete); |
| 173 } | 169 } |
| 174 | 170 |
| 175 Node* NewNode(const Operator* op, Node* n1) { | 171 Node* NewNode(const Operator* op, Node* n1) { |
| 176 return MakeNode(op, 1, &n1, false); | 172 return MakeNode(op, 1, &n1, false); |
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| 262 | 258 |
| 263 // Builders to create local function, script and block contexts. | 259 // Builders to create local function, script and block contexts. |
| 264 Node* BuildLocalActivationContext(Node* context); | 260 Node* BuildLocalActivationContext(Node* context); |
| 265 Node* BuildLocalFunctionContext(Scope* scope); | 261 Node* BuildLocalFunctionContext(Scope* scope); |
| 266 Node* BuildLocalScriptContext(Scope* scope); | 262 Node* BuildLocalScriptContext(Scope* scope); |
| 267 Node* BuildLocalBlockContext(Scope* scope); | 263 Node* BuildLocalBlockContext(Scope* scope); |
| 268 | 264 |
| 269 // Builder to create an arguments object if it is used. | 265 // Builder to create an arguments object if it is used. |
| 270 Node* BuildArgumentsObject(Variable* arguments); | 266 Node* BuildArgumentsObject(Variable* arguments); |
| 271 | 267 |
| 272 // Builder to create an array of rest parameters if used. | |
| 273 Node* BuildRestArgumentsArray(Variable* rest); | |
| 274 | |
| 275 // Builder that assigns to the {.this_function} internal variable if needed. | |
| 276 Node* BuildThisFunctionVariable(Variable* this_function_var); | |
| 277 | |
| 278 // Builder that assigns to the {new.target} internal variable if needed. | |
| 279 Node* BuildNewTargetVariable(Variable* new_target_var); | |
| 280 | |
| 281 // Builders for variable load and assignment. | 268 // Builders for variable load and assignment. |
| 282 Node* BuildVariableAssignment(Variable* variable, Node* value, | 269 Node* BuildVariableAssignment(Variable* variable, Node* value, |
| 283 Token::Value op, const VectorSlotPair& slot, | 270 Token::Value op, const VectorSlotPair& slot, |
| 284 BailoutId bailout_id, | 271 BailoutId bailout_id, |
| 285 OutputFrameStateCombine framestate_combine = | 272 OutputFrameStateCombine framestate_combine = |
| 286 OutputFrameStateCombine::Ignore()); | 273 OutputFrameStateCombine::Ignore()); |
| 287 Node* BuildVariableDelete(Variable* variable, BailoutId bailout_id, | 274 Node* BuildVariableDelete(Variable* variable, BailoutId bailout_id, |
| 288 OutputFrameStateCombine framestate_combine); | 275 OutputFrameStateCombine framestate_combine); |
| 289 Node* BuildVariableLoad(Variable* variable, BailoutId bailout_id, | 276 Node* BuildVariableLoad(Variable* variable, BailoutId bailout_id, |
| 290 const VectorSlotPair& feedback, | 277 const VectorSlotPair& feedback, |
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| 612 private: | 599 private: |
| 613 SourcePositionTable* const source_positions_; | 600 SourcePositionTable* const source_positions_; |
| 614 SourcePosition const start_position_; | 601 SourcePosition const start_position_; |
| 615 }; | 602 }; |
| 616 | 603 |
| 617 } // namespace compiler | 604 } // namespace compiler |
| 618 } // namespace internal | 605 } // namespace internal |
| 619 } // namespace v8 | 606 } // namespace v8 |
| 620 | 607 |
| 621 #endif // V8_COMPILER_AST_GRAPH_BUILDER_H_ | 608 #endif // V8_COMPILER_AST_GRAPH_BUILDER_H_ |
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