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diff --git a/deps/v8/src/codegen.h b/deps/v8/src/codegen.h
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+// Copyright 2006-2008 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef V8_CODEGEN_H_
+#define V8_CODEGEN_H_
+
+#include "ast.h"
+#include "code-stubs.h"
+#include "runtime.h"
+
+// Include the declaration of the architecture defined class CodeGenerator.
+// The contract  to the shared code is that the the CodeGenerator is a subclass
+// of Visitor and that the following methods are available publicly:
+//   MakeCode
+//   SetFunctionInfo
+//   masm
+//   frame
+//   has_valid_frame
+//   SetFrame
+//   DeleteFrame
+//   allocator
+//   AddDeferred
+//   in_spilled_code
+//   set_in_spilled_code
+//
+// These methods are either used privately by the shared code or implemented as
+// shared code:
+//   CodeGenerator
+//   ~CodeGenerator
+//   ProcessDeferred
+//   ClearDeferred
+//   GenCode
+//   BuildBoilerplate
+//   ComputeCallInitialize
+//   ComputeCallInitializeInLoop
+//   ProcessDeclarations
+//   DeclareGlobals
+//   CheckForInlineRuntimeCall
+//   GenerateFastCaseSwitchStatement
+//   GenerateFastCaseSwitchCases
+//   TryGenerateFastCaseSwitchStatement
+//   GenerateFastCaseSwitchJumpTable
+//   FastCaseSwitchMinCaseCount
+//   FastCaseSwitchMaxOverheadFactor
+//   CodeForFunctionPosition
+//   CodeForReturnPosition
+//   CodeForStatementPosition
+//   CodeForSourcePosition
+
+#ifdef ARM
+#include "codegen-arm.h"
+#else
+#include "codegen-ia32.h"
+#endif
+
+namespace v8 { namespace internal {
+
+
+// Use lazy compilation; defaults to true.
+// NOTE: Do not remove non-lazy compilation until we can properly
+//       install extensions with lazy compilation enabled. At the
+//       moment, this doesn't work for the extensions in Google3,
+//       and we can only run the tests with --nolazy.
+
+
+// Deferred code objects are small pieces of code that are compiled
+// out of line. They are used to defer the compilation of uncommon
+// paths thereby avoiding expensive jumps around uncommon code parts.
+class DeferredCode: public ZoneObject {
+ public:
+  explicit DeferredCode(CodeGenerator* generator);
+  virtual ~DeferredCode() { }
+
+  virtual void Generate() = 0;
+
+  // Unuse the entry and exit targets, deallocating all virtual frames
+  // held by them.  It will be impossible to emit a (correct) jump
+  // into or out of the deferred code after clearing.
+  void Clear() {
+    enter_.Unuse();
+    exit_.Unuse();
+  }
+
+  MacroAssembler* masm() const { return masm_; }
+  CodeGenerator* generator() const { return generator_; }
+
+  JumpTarget* enter() { return &enter_; }
+  void BindExit() { exit_.Bind(0); }
+  void BindExit(Result* result) { exit_.Bind(result, 1); }
+  void BindExit(Result* result0, Result* result1, Result* result2) {
+    exit_.Bind(result0, result1, result2, 3);
+  }
+
+  int statement_position() const { return statement_position_; }
+  int position() const { return position_; }
+
+#ifdef DEBUG
+  void set_comment(const char* comment) { comment_ = comment; }
+  const char* comment() const { return comment_; }
+#else
+  inline void set_comment(const char* comment) { }
+  const char* comment() const { return ""; }
+#endif
+
+ protected:
+  CodeGenerator* const generator_;
+  MacroAssembler* const masm_;
+  JumpTarget enter_;
+  JumpTarget exit_;
+
+ private:
+  int statement_position_;
+  int position_;
+#ifdef DEBUG
+  const char* comment_;
+#endif
+  DISALLOW_COPY_AND_ASSIGN(DeferredCode);
+};
+
+
+// RuntimeStub models code stubs calling entry points in the Runtime class.
+class RuntimeStub : public CodeStub {
+ public:
+  explicit RuntimeStub(Runtime::FunctionId id, int num_arguments)
+      : id_(id), num_arguments_(num_arguments) { }
+
+  void Generate(MacroAssembler* masm);
+
+  // Disassembler support.  It is useful to be able to print the name
+  // of the runtime function called through this stub.
+  static const char* GetNameFromMinorKey(int minor_key) {
+    return Runtime::FunctionForId(IdField::decode(minor_key))->stub_name;
+  }
+
+ private:
+  Runtime::FunctionId id_;
+  int num_arguments_;
+
+  class ArgumentField: public BitField<int,  0, 16> {};
+  class IdField: public BitField<Runtime::FunctionId, 16, kMinorBits - 16> {};
+
+  Major MajorKey() { return Runtime; }
+  int MinorKey() {
+    return IdField::encode(id_) | ArgumentField::encode(num_arguments_);
+  }
+
+  const char* GetName();
+
+#ifdef DEBUG
+  void Print() {
+    PrintF("RuntimeStub (id %s)\n", Runtime::FunctionForId(id_)->name);
+  }
+#endif
+};
+
+
+class StackCheckStub : public CodeStub {
+ public:
+  StackCheckStub() { }
+
+  void Generate(MacroAssembler* masm);
+
+ private:
+
+  const char* GetName() { return "StackCheckStub"; }
+
+  Major MajorKey() { return StackCheck; }
+  int MinorKey() { return 0; }
+};
+
+
+class UnarySubStub : public CodeStub {
+ public:
+  UnarySubStub() { }
+
+ private:
+  Major MajorKey() { return UnarySub; }
+  int MinorKey() { return 0; }
+  void Generate(MacroAssembler* masm);
+
+  const char* GetName() { return "UnarySubStub"; }
+};
+
+
+class CEntryStub : public CodeStub {
+ public:
+  CEntryStub() { }
+
+  void Generate(MacroAssembler* masm) { GenerateBody(masm, false); }
+
+ protected:
+  void GenerateBody(MacroAssembler* masm, bool is_debug_break);
+  void GenerateCore(MacroAssembler* masm,
+                    Label* throw_normal_exception,
+                    Label* throw_out_of_memory_exception,
+                    StackFrame::Type frame_type,
+                    bool do_gc,
+                    bool always_allocate_scope);
+  void GenerateThrowTOS(MacroAssembler* masm);
+  void GenerateThrowOutOfMemory(MacroAssembler* masm);
+
+ private:
+  Major MajorKey() { return CEntry; }
+  int MinorKey() { return 0; }
+
+  const char* GetName() { return "CEntryStub"; }
+};
+
+
+class CEntryDebugBreakStub : public CEntryStub {
+ public:
+  CEntryDebugBreakStub() { }
+
+  void Generate(MacroAssembler* masm) { GenerateBody(masm, true); }
+
+ private:
+  int MinorKey() { return 1; }
+
+  const char* GetName() { return "CEntryDebugBreakStub"; }
+};
+
+
+class JSEntryStub : public CodeStub {
+ public:
+  JSEntryStub() { }
+
+  void Generate(MacroAssembler* masm) { GenerateBody(masm, false); }
+
+ protected:
+  void GenerateBody(MacroAssembler* masm, bool is_construct);
+
+ private:
+  Major MajorKey() { return JSEntry; }
+  int MinorKey() { return 0; }
+
+  const char* GetName() { return "JSEntryStub"; }
+};
+
+
+class JSConstructEntryStub : public JSEntryStub {
+ public:
+  JSConstructEntryStub() { }
+
+  void Generate(MacroAssembler* masm) { GenerateBody(masm, true); }
+
+ private:
+  int MinorKey() { return 1; }
+
+  const char* GetName() { return "JSConstructEntryStub"; }
+};
+
+
+class ArgumentsAccessStub: public CodeStub {
+ public:
+  enum Type {
+    READ_LENGTH,
+    READ_ELEMENT,
+    NEW_OBJECT
+  };
+
+  explicit ArgumentsAccessStub(Type type) : type_(type) { }
+
+ private:
+  Type type_;
+
+  Major MajorKey() { return ArgumentsAccess; }
+  int MinorKey() { return type_; }
+
+  void Generate(MacroAssembler* masm);
+  void GenerateReadLength(MacroAssembler* masm);
+  void GenerateReadElement(MacroAssembler* masm);
+  void GenerateNewObject(MacroAssembler* masm);
+
+  const char* GetName() { return "ArgumentsAccessStub"; }
+
+#ifdef DEBUG
+  void Print() {
+    PrintF("ArgumentsAccessStub (type %d)\n", type_);
+  }
+#endif
+};
+
+
+}  // namespace internal
+}  // namespace v8
+
+#endif  // V8_CODEGEN_H_