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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_BYTECODE_GRAPH_BUILDER_H_ | 5 #ifndef V8_COMPILER_BYTECODE_GRAPH_BUILDER_H_ |
6 #define V8_COMPILER_BYTECODE_GRAPH_BUILDER_H_ | 6 #define V8_COMPILER_BYTECODE_GRAPH_BUILDER_H_ |
7 | 7 |
8 #include "src/compiler.h" | 8 #include "src/compiler.h" |
9 #include "src/compiler/bytecode-branch-analysis.h" | 9 #include "src/compiler/bytecode-branch-analysis.h" |
10 #include "src/compiler/js-graph.h" | 10 #include "src/compiler/js-graph.h" |
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256 class BytecodeGraphBuilder::Environment : public ZoneObject { | 256 class BytecodeGraphBuilder::Environment : public ZoneObject { |
257 public: | 257 public: |
258 Environment(BytecodeGraphBuilder* builder, int register_count, | 258 Environment(BytecodeGraphBuilder* builder, int register_count, |
259 int parameter_count, Node* control_dependency, Node* context); | 259 int parameter_count, Node* control_dependency, Node* context); |
260 | 260 |
261 int parameter_count() const { return parameter_count_; } | 261 int parameter_count() const { return parameter_count_; } |
262 int register_count() const { return register_count_; } | 262 int register_count() const { return register_count_; } |
263 | 263 |
264 void BindRegister(interpreter::Register the_register, Node* node); | 264 void BindRegister(interpreter::Register the_register, Node* node); |
265 Node* LookupRegister(interpreter::Register the_register) const; | 265 Node* LookupRegister(interpreter::Register the_register) const; |
| 266 void ExchangeRegisters(interpreter::Register r0, interpreter::Register r1); |
266 | 267 |
267 void BindAccumulator(Node* node, FrameStateBeforeAndAfter* states = nullptr); | 268 void BindAccumulator(Node* node, FrameStateBeforeAndAfter* states = nullptr); |
268 Node* LookupAccumulator() const; | 269 Node* LookupAccumulator() const; |
269 | 270 |
270 void RecordAfterState(Node* node, FrameStateBeforeAndAfter* states); | 271 void RecordAfterState(Node* node, FrameStateBeforeAndAfter* states); |
271 | 272 |
272 bool IsMarkedAsUnreachable() const; | 273 bool IsMarkedAsUnreachable() const; |
273 void MarkAsUnreachable(); | 274 void MarkAsUnreachable(); |
274 | 275 |
275 // Effect dependency tracked by this environment. | 276 // Effect dependency tracked by this environment. |
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329 Node* accumulator_state_values_; | 330 Node* accumulator_state_values_; |
330 int register_base_; | 331 int register_base_; |
331 int accumulator_base_; | 332 int accumulator_base_; |
332 }; | 333 }; |
333 | 334 |
334 } // namespace compiler | 335 } // namespace compiler |
335 } // namespace internal | 336 } // namespace internal |
336 } // namespace v8 | 337 } // namespace v8 |
337 | 338 |
338 #endif // V8_COMPILER_BYTECODE_GRAPH_BUILDER_H_ | 339 #endif // V8_COMPILER_BYTECODE_GRAPH_BUILDER_H_ |
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