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diff --git a/deps/v8/src/compiler/escape-analysis-reducer.h b/deps/v8/src/compiler/escape-analysis-reducer.h
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+++ b/deps/v8/src/compiler/escape-analysis-reducer.h
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+// Copyright 2015 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_ESCAPE_ANALYSIS_REDUCER_H_
+#define V8_COMPILER_ESCAPE_ANALYSIS_REDUCER_H_
+
+#include "src/bit-vector.h"
+#include "src/compiler/escape-analysis.h"
+#include "src/compiler/graph-reducer.h"
+
+
+namespace v8 {
+namespace internal {
+
+// Forward declarations.
+class Counters;
+
+
+namespace compiler {
+
+// Forward declarations.
+class JSGraph;
+
+
+class EscapeAnalysisReducer final : public AdvancedReducer {
+ public:
+  EscapeAnalysisReducer(Editor* editor, JSGraph* jsgraph,
+                        EscapeAnalysis* escape_analysis, Zone* zone);
+
+  Reduction Reduce(Node* node) final;
+
+ private:
+  Reduction ReduceLoad(Node* node);
+  Reduction ReduceStore(Node* node);
+  Reduction ReduceAllocate(Node* node);
+  Reduction ReduceFinishRegion(Node* node);
+  Reduction ReduceReferenceEqual(Node* node);
+  Reduction ReduceObjectIsSmi(Node* node);
+  Reduction ReduceFrameStateUses(Node* node);
+  Node* ReduceFrameState(Node* node, Node* effect, bool multiple_users);
+  Node* ReduceStateValueInputs(Node* node, Node* effect, bool multiple_users);
+  Node* ReduceStateValueInput(Node* node, int node_index, Node* effect,
+                              bool multiple_users);
+
+  JSGraph* jsgraph() const { return jsgraph_; }
+  EscapeAnalysis* escape_analysis() const { return escape_analysis_; }
+  Zone* zone() const { return zone_; }
+  Counters* counters() const;
+
+  JSGraph* const jsgraph_;
+  EscapeAnalysis* escape_analysis_;
+  Zone* const zone_;
+  BitVector visited_;
+
+  DISALLOW_COPY_AND_ASSIGN(EscapeAnalysisReducer);
+};
+
+}  // namespace compiler
+}  // namespace internal
+}  // namespace v8
+
+#endif  // V8_COMPILER_ESCAPE_ANALYSIS_REDUCER_H_