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diff --git a/src/interpreter/bytecode-array-accessor.h b/src/interpreter/bytecode-array-accessor.h
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+++ b/src/interpreter/bytecode-array-accessor.h
@@ -0,0 +1,76 @@
+// Copyright 2016 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_INTERPRETER_BYTECODE_ARRAY_ACCESSOR_H_
+#define V8_INTERPRETER_BYTECODE_ARRAY_ACCESSOR_H_
+
+#include "src/globals.h"
+#include "src/handles.h"
+#include "src/interpreter/bytecode-register.h"
+#include "src/interpreter/bytecodes.h"
+#include "src/objects.h"
+#include "src/runtime/runtime.h"
+
+namespace v8 {
+namespace internal {
+namespace interpreter {
+
+class V8_EXPORT_PRIVATE BytecodeArrayAccessor {
+ public:
+  BytecodeArrayAccessor(Handle<BytecodeArray> bytecode_array,
+                        int initial_offset);
+
+  void SetOffset(int offset);
+
+  Bytecode current_bytecode() const;
+  int current_bytecode_size() const;
+  int current_offset() const { return bytecode_offset_; }
+  OperandScale current_operand_scale() const { return operand_scale_; }
+  int current_prefix_offset() const { return prefix_offset_; }
+  const Handle<BytecodeArray>& bytecode_array() const {
+    return bytecode_array_;
+  }
+
+  uint32_t GetFlagOperand(int operand_index) const;
+  uint32_t GetUnsignedImmediateOperand(int operand_index) const;
+  int32_t GetImmediateOperand(int operand_index) const;
+  uint32_t GetIndexOperand(int operand_index) const;
+  uint32_t GetRegisterCountOperand(int operand_index) const;
+  Register GetRegisterOperand(int operand_index) const;
+  int GetRegisterOperandRange(int operand_index) const;
+  Runtime::FunctionId GetRuntimeIdOperand(int operand_index) const;
+  Runtime::FunctionId GetIntrinsicIdOperand(int operand_index) const;
+  Handle<Object> GetConstantForIndexOperand(int operand_index) const;
+
+  // Returns the absolute offset of the branch target at the current
+  // bytecode. It is an error to call this method if the bytecode is
+  // not for a jump or conditional jump.
+  int GetJumpTargetOffset() const;
+
+  bool OffsetWithinBytecode(int offset) const;
+
+  std::ostream& PrintTo(std::ostream& os) const;
+
+ private:
+  bool OffsetInBounds() const;
+
+  uint32_t GetUnsignedOperand(int operand_index,
+                              OperandType operand_type) const;
+  int32_t GetSignedOperand(int operand_index, OperandType operand_type) const;
+
+  void UpdateOperandScale();
+
+  Handle<BytecodeArray> bytecode_array_;
+  int bytecode_offset_;
+  OperandScale operand_scale_;
+  int prefix_offset_;
+
+  DISALLOW_COPY_AND_ASSIGN(BytecodeArrayAccessor);
+};
+
+}  // namespace interpreter
+}  // namespace internal
+}  // namespace v8
+
+#endif  // V8_INTERPRETER_BYTECODE_GRAPH_ACCESSOR_H_