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src/compiler/machine-operator-reducer.h

Index: src/compiler/machine-operator-reducer.h
diff --git a/src/compiler/machine-operator-reducer.h b/src/compiler/machine-operator-reducer.h
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+// 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_MACHINE_OPERATOR_REDUCER_H_
+#define V8_COMPILER_MACHINE_OPERATOR_REDUCER_H_
+
+#include "src/compiler/common-operator.h"
+#include "src/compiler/graph-reducer.h"
+#include "src/compiler/machine-operator.h"
+
+namespace v8 {
+namespace internal {
+namespace compiler {
+
+// Forward declarations.
+class CommonNodeCache;
+
+// Performs constant folding and strength reduction on nodes that have
+// machine operators.
+class MachineOperatorReducer : public Reducer {
+ public:
+  explicit MachineOperatorReducer(Graph* graph);
+
+  MachineOperatorReducer(Graph* graph, CommonNodeCache* cache);
+
+  virtual Reduction Reduce(Node* node);
+
+ private:
+  Graph* graph_;
+  CommonNodeCache* cache_;
+  CommonOperatorBuilder common_;
+  MachineOperatorBuilder machine_;
+
+  Node* Int32Constant(int32_t value);
+  Node* Float64Constant(volatile double value);
+
+  Reduction ReplaceBool(bool value) {
+    return ReplaceInt32(value ? 1 : 0);
+  }
+
+  Reduction ReplaceInt32(int32_t value) {
+    return Replace(Int32Constant(value));
+  }
+
+  Reduction ReplaceFloat64(volatile double value) {
+    return Replace(Float64Constant(value));
+  }
+};
+
+} } }  // namespace v8::internal::compiler
+
+#endif  // V8_COMPILER_MACHINE_OPERATOR_REDUCER_H_