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_COMMON_OPERATOR_REDUCER_H_ 6 #define V8_COMPILER_COMMON_OPERATOR_REDUCER_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 CommonOperatorBuilder; 16 class Graph; 17 class MachineOperatorBuilder; 18 class Operator; 19 20 21 // Performs strength reduction on nodes that have common operators. 22 class CommonOperatorReducer final : public AdvancedReducer { 23 public: 24 CommonOperatorReducer(Editor* editor, Graph* graph, 25 CommonOperatorBuilder* common, 26 MachineOperatorBuilder* machine); ~CommonOperatorReducer()27 ~CommonOperatorReducer() final {} 28 29 Reduction Reduce(Node* node) final; 30 31 private: 32 Reduction ReduceBranch(Node* node); 33 Reduction ReduceMerge(Node* node); 34 Reduction ReduceEffectPhi(Node* node); 35 Reduction ReducePhi(Node* node); 36 Reduction ReduceReturn(Node* node); 37 Reduction ReduceSelect(Node* node); 38 Reduction ReduceGuard(Node* node); 39 40 Reduction Change(Node* node, Operator const* op, Node* a); 41 Reduction Change(Node* node, Operator const* op, Node* a, Node* b); 42 graph()43 Graph* graph() const { return graph_; } common()44 CommonOperatorBuilder* common() const { return common_; } machine()45 MachineOperatorBuilder* machine() const { return machine_; } dead()46 Node* dead() const { return dead_; } 47 48 Graph* const graph_; 49 CommonOperatorBuilder* const common_; 50 MachineOperatorBuilder* const machine_; 51 Node* const dead_; 52 }; 53 54 } // namespace compiler 55 } // namespace internal 56 } // namespace v8 57 58 #endif // V8_COMPILER_COMMON_OPERATOR_REDUCER_H_ 59