|  | // Copyright 2014 the V8 project authors. All rights reserved. | 
|  | // Use of this source code is governed by a BSD-style license that can be | 
|  | // found in the LICENSE file. | 
|  |  | 
|  | #ifndef V8_COMPILER_SELECT_LOWERING_H_ | 
|  | #define V8_COMPILER_SELECT_LOWERING_H_ | 
|  |  | 
|  | #include "src/compiler/graph-reducer.h" | 
|  |  | 
|  | namespace v8 { | 
|  | namespace internal { | 
|  | namespace compiler { | 
|  |  | 
|  | // Forward declarations. | 
|  | class JSGraphAssembler; | 
|  |  | 
|  | // Lowers Select nodes to diamonds. | 
|  | class SelectLowering final : public Reducer { | 
|  | public: | 
|  | SelectLowering(JSGraphAssembler* graph_assembler, Graph* graph); | 
|  | ~SelectLowering() override; | 
|  |  | 
|  | const char* reducer_name() const override { return "SelectLowering"; } | 
|  |  | 
|  | Reduction Reduce(Node* node) override; | 
|  |  | 
|  | private: | 
|  | Reduction LowerSelect(Node* node); | 
|  |  | 
|  | JSGraphAssembler* gasm() const { return graph_assembler_; } | 
|  | Node* start() const { return start_; } | 
|  |  | 
|  | JSGraphAssembler* graph_assembler_; | 
|  | Node* start_; | 
|  | }; | 
|  |  | 
|  | }  // namespace compiler | 
|  | }  // namespace internal | 
|  | }  // namespace v8 | 
|  |  | 
|  | #endif  // V8_COMPILER_SELECT_LOWERING_H_ |