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 3 // found in the LICENSE file. 4 5 #ifndef V8_COMPILER_SELECT_LOWERING_H_ 6 #define V8_COMPILER_SELECT_LOWERING_H_ 7 8 #include "src/compiler/graph-reducer.h" 9 10 namespace v8 { 11 namespace internal { 12 namespace compiler { 13 14 // Forward declarations. 15 class JSGraphAssembler; 16 17 // Lowers Select nodes to diamonds. 18 class SelectLowering final : public Reducer { 19 public: 20 SelectLowering(JSGraphAssembler* graph_assembler, Graph* graph); 21 ~SelectLowering() override; 22 reducer_name()23 const char* reducer_name() const override { return "SelectLowering"; } 24 25 Reduction Reduce(Node* node) override; 26 27 private: 28 Reduction LowerSelect(Node* node); 29 gasm()30 JSGraphAssembler* gasm() const { return graph_assembler_; } start()31 Node* start() const { return start_; } 32 33 JSGraphAssembler* graph_assembler_; 34 Node* start_; 35 }; 36 37 } // namespace compiler 38 } // namespace internal 39 } // namespace v8 40 41 #endif // V8_COMPILER_SELECT_LOWERING_H_ 42