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, JSHeapBroker* broker,
      28             :                         CommonOperatorBuilder* common,
      29             :                         MachineOperatorBuilder* machine, Zone* temp_zone);
      30     5722238 :   ~CommonOperatorReducer() final = default;
      31             : 
      32         177 :   const char* reducer_name() const override { return "CommonOperatorReducer"; }
      33             : 
      34             :   Reduction Reduce(Node* node) final;
      35             : 
      36             :  private:
      37             :   Reduction ReduceBranch(Node* node);
      38             :   Reduction ReduceDeoptimizeConditional(Node* node);
      39             :   Reduction ReduceMerge(Node* node);
      40             :   Reduction ReduceEffectPhi(Node* node);
      41             :   Reduction ReducePhi(Node* node);
      42             :   Reduction ReduceReturn(Node* node);
      43             :   Reduction ReduceSelect(Node* node);
      44             :   Reduction ReduceSwitch(Node* node);
      45             : 
      46             :   Reduction Change(Node* node, Operator const* op, Node* a);
      47             :   Reduction Change(Node* node, Operator const* op, Node* a, Node* b);
      48             : 
      49             :   Graph* graph() const { return graph_; }
      50             :   JSHeapBroker* broker() const { return broker_; }
      51             :   CommonOperatorBuilder* common() const { return common_; }
      52             :   MachineOperatorBuilder* machine() const { return machine_; }
      53             :   Node* dead() const { return dead_; }
      54             : 
      55             :   Graph* const graph_;
      56             :   JSHeapBroker* const broker_;
      57             :   CommonOperatorBuilder* const common_;
      58             :   MachineOperatorBuilder* const machine_;
      59             :   Node* const dead_;
      60             :   Zone* zone_;
      61             : };
      62             : 
      63             : }  // namespace compiler
      64             : }  // namespace internal
      65             : }  // namespace v8
      66             : 
      67             : #endif  // V8_COMPILER_COMMON_OPERATOR_REDUCER_H_