binary-operator-reducer: reduce mul+div(shift)

src/compiler/binary-operator-reducer.h

 // 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_COMMON_OPERATOR_REDUCER_H_
-#define V8_COMPILER_COMMON_OPERATOR_REDUCER_H_
+#ifndef V8_COMPILER_BINARY_OPERATOR_REDUCER_H_
+#define V8_COMPILER_BINARY_OPERATOR_REDUCER_H_
 
 #include "src/compiler/graph-reducer.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
 // Forward declarations.
 class CommonOperatorBuilder;
 class Graph;
 class MachineOperatorBuilder;
 class Operator;
 
 
 // Performs strength reduction on nodes that have common operators.
-class CommonOperatorReducer final : public AdvancedReducer {
+class BinaryOperatorReducer final : public AdvancedReducer {
  public:
-  CommonOperatorReducer(Editor* editor, Graph* graph,
+  BinaryOperatorReducer(Editor* editor, Graph* graph,
                         CommonOperatorBuilder* common,
                         MachineOperatorBuilder* machine);
-  ~CommonOperatorReducer() final {}
+  ~BinaryOperatorReducer() final {}
 
   Reduction Reduce(Node* node) final;
 
  private:
-  Reduction ReduceBranch(Node* node);
-  Reduction ReduceMerge(Node* node);
-  Reduction ReduceEffectPhi(Node* node);
-  Reduction ReducePhi(Node* node);
-  Reduction ReduceReturn(Node* node);
-  Reduction ReduceSelect(Node* node);
-  Reduction ReduceGuard(Node* node);
+  Reduction ReduceFloat52Mul(Node* node);
+  Reduction ReduceFloat52Div(Node* node);
 
   Reduction Change(Node* node, Operator const* op, Node* a);
-  Reduction Change(Node* node, Operator const* op, Node* a, Node* b);
 
   Graph* graph() const { return graph_; }
   CommonOperatorBuilder* common() const { return common_; }
   MachineOperatorBuilder* machine() const { return machine_; }
   Node* dead() const { return dead_; }
 
   Graph* const graph_;
   CommonOperatorBuilder* const common_;
   MachineOperatorBuilder* const machine_;
   Node* const dead_;
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
-#endif  // V8_COMPILER_COMMON_OPERATOR_REDUCER_H_
+#endif  // V8_COMPILER_BINARY_OPERATOR_REDUCER_H_