Line data    Source code

       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/base/compiler-specific.h"
       9             : #include "src/compiler/graph-reducer.h"
      10             : #include "src/globals.h"
      11             : 
      12             : namespace v8 {
      13             : namespace internal {
      14             : namespace compiler {
      15             : 
      16             : // Forward declarations.
      17             : class CommonOperatorBuilder;
      18             : class Graph;
      19             : class MachineOperatorBuilder;
      20             : class Operator;
      21             : 
      22             : 
      23             : // Performs strength reduction on nodes that have common operators.
      24             : class V8_EXPORT_PRIVATE CommonOperatorReducer final
      25             :     : public NON_EXPORTED_BASE(AdvancedReducer) {
      26             :  public:
      27             :   CommonOperatorReducer(Editor* editor, Graph* graph,
      28             :                         CommonOperatorBuilder* common,
      29             :                         MachineOperatorBuilder* machine);
      30     2446128 :   ~CommonOperatorReducer() final {}
      31             : 
      32             :   Reduction Reduce(Node* node) final;
      33             : 
      34             :  private:
      35             :   Reduction ReduceBranch(Node* node);
      36             :   Reduction ReduceDeoptimizeConditional(Node* node);
      37             :   Reduction ReduceMerge(Node* node);
      38             :   Reduction ReduceEffectPhi(Node* node);
      39             :   Reduction ReducePhi(Node* node);
      40             :   Reduction ReduceReturn(Node* node);
      41             :   Reduction ReduceSelect(Node* node);
      42             : 
      43             :   Reduction Change(Node* node, Operator const* op, Node* a);
      44             :   Reduction Change(Node* node, Operator const* op, Node* a, Node* b);
      45             : 
      46             :   Graph* graph() const { return graph_; }
      47             :   CommonOperatorBuilder* common() const { return common_; }
      48             :   MachineOperatorBuilder* machine() const { return machine_; }
      49             :   Node* dead() const { return dead_; }
      50             : 
      51             :   Graph* const graph_;
      52             :   CommonOperatorBuilder* const common_;
      53             :   MachineOperatorBuilder* const machine_;
      54             :   Node* const dead_;
      55             : };
      56             : 
      57             : }  // namespace compiler
      58             : }  // namespace internal
      59             : }  // namespace v8
      60             : 
      61             : #endif  // V8_COMPILER_COMMON_OPERATOR_REDUCER_H_