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

src/compiler/binary-operator-reducer.h

Index: src/compiler/binary-operator-reducer.h
diff --git a/src/compiler/common-operator-reducer.h b/src/compiler/binary-operator-reducer.h
similarity index 68%
copy from src/compiler/common-operator-reducer.h
copy to src/compiler/binary-operator-reducer.h
index 8582d6b633f674575bf049d6f1569de17ccc6963..b8fe444343fe755f479feed7bacdad2ad59cbd99 100644
--- a/src/compiler/common-operator-reducer.h
+++ b/src/compiler/binary-operator-reducer.h
@@ -2,8 +2,8 @@
 // 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"
 
@@ -19,22 +19,17 @@ 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 ReduceFloat64Mul(Node* node);
 
   Reduction Change(Node* node, Operator const* op, Node* a);
   Reduction Change(Node* node, Operator const* op, Node* a, Node* b);
@@ -54,4 +49,4 @@ class CommonOperatorReducer final : public AdvancedReducer {
 }  // namespace internal
 }  // namespace v8
 
-#endif  // V8_COMPILER_COMMON_OPERATOR_REDUCER_H_
+#endif  // V8_COMPILER_BINARY_OPERATOR_REDUCER_H_