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diff --git a/V8Binding/v8/src/x64/cfg-x64.cc b/V8Binding/v8/src/x64/cfg-x64.cc
new file mode 100644
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+++ b/V8Binding/v8/src/x64/cfg-x64.cc
@@ -0,0 +1,323 @@
+// Copyright 2009 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.
+
+#include "v8.h"
+
+#include "cfg.h"
+#include "codegen-inl.h"
+#include "codegen-x64.h"
+#include "debug.h"
+#include "macro-assembler-x64.h"
+
+namespace v8 {
+namespace internal {
+
+#define __ ACCESS_MASM(masm)
+
+void InstructionBlock::Compile(MacroAssembler* masm) {
+  ASSERT(!is_marked());
+  is_marked_ = true;
+  {
+    Comment cmt(masm, "[ InstructionBlock");
+    for (int i = 0, len = instructions_.length(); i < len; i++) {
+      // If the location of the current instruction is a temp, then the
+      // instruction cannot be in tail position in the block.  Allocate the
+      // temp based on peeking ahead to the next instruction.
+      Instruction* instr = instructions_[i];
+      Location* loc = instr->location();
+      if (loc->is_temporary()) {
+        instructions_[i+1]->FastAllocate(TempLocation::cast(loc));
+      }
+      instructions_[i]->Compile(masm);
+    }
+  }
+  successor_->Compile(masm);
+}
+
+
+void EntryNode::Compile(MacroAssembler* masm) {
+  ASSERT(!is_marked());
+  is_marked_ = true;
+  Label deferred_enter, deferred_exit;
+  {
+    Comment cmnt(masm, "[ EntryNode");
+    __ push(rbp);
+    __ movq(rbp, rsp);
+    __ push(rsi);
+    __ push(rdi);
+    int count = CfgGlobals::current()->fun()->scope()->num_stack_slots();
+    if (count > 0) {
+      __ movq(kScratchRegister, Factory::undefined_value(),
+              RelocInfo::EMBEDDED_OBJECT);
+      for (int i = 0; i < count; i++) {
+        __ push(kScratchRegister);
+      }
+    }
+    if (FLAG_trace) {
+      __ CallRuntime(Runtime::kTraceEnter, 0);
+    }
+    if (FLAG_check_stack) {
+      ExternalReference stack_limit =
+          ExternalReference::address_of_stack_guard_limit();
+      __ movq(kScratchRegister, stack_limit);
+      __ cmpq(rsp, Operand(kScratchRegister, 0));
+      __ j(below, &deferred_enter);
+      __ bind(&deferred_exit);
+    }
+  }
+  successor_->Compile(masm);
+  if (FLAG_check_stack) {
+    Comment cmnt(masm, "[ Deferred Stack Check");
+    __ bind(&deferred_enter);
+    StackCheckStub stub;
+    __ CallStub(&stub);
+    __ jmp(&deferred_exit);
+  }
+}
+
+
+void ExitNode::Compile(MacroAssembler* masm) {
+  ASSERT(!is_marked());
+  is_marked_ = true;
+  Comment cmnt(masm, "[ ExitNode");
+  if (FLAG_trace) {
+    __ push(rax);
+    __ CallRuntime(Runtime::kTraceExit, 1);
+  }
+  __ RecordJSReturn();
+  __ movq(rsp, rbp);
+  __ pop(rbp);
+  int count = CfgGlobals::current()->fun()->scope()->num_parameters();
+  __ ret((count + 1) * kPointerSize);
+  // Add padding that will be overwritten by a debugger breakpoint.
+  // "movq rsp, rbp; pop rbp" has length 5.  "ret k" has length 2.
+  const int kPadding = Debug::kX64JSReturnSequenceLength - 5 - 2;
+  for (int i = 0; i < kPadding; ++i) {
+    __ int3();
+  }
+}
+
+
+void PropLoadInstr::Compile(MacroAssembler* masm) {
+  // The key should not be on the stack---if it is a compiler-generated
+  // temporary it is in the accumulator.
+  ASSERT(!key()->is_on_stack());
+
+  Comment cmnt(masm, "[ Load from Property");
+  // If the key is known at compile-time we may be able to use a load IC.
+  bool is_keyed_load = true;
+  if (key()->is_constant()) {
+    // Still use the keyed load IC if the key can be parsed as an integer so
+    // we will get into the case that handles [] on string objects.
+    Handle<Object> key_val = Constant::cast(key())->handle();
+    uint32_t ignored;
+    if (key_val->IsSymbol() &&
+        !String::cast(*key_val)->AsArrayIndex(&ignored)) {
+      is_keyed_load = false;
+    }
+  }
+
+  if (!object()->is_on_stack()) object()->Push(masm);
+  // A test rax instruction after the call indicates to the IC code that it
+  // was inlined.  Ensure there is not one after the call below.
+  if (is_keyed_load) {
+    key()->Push(masm);
+    Handle<Code> ic(Builtins::builtin(Builtins::KeyedLoadIC_Initialize));
+    __ Call(ic, RelocInfo::CODE_TARGET);
+    __ pop(rbx);  // Discard key.
+  } else {
+    key()->Get(masm, rcx);
+    Handle<Code> ic(Builtins::builtin(Builtins::LoadIC_Initialize));
+    __ Call(ic, RelocInfo::CODE_TARGET);
+  }
+  __ pop(rbx);  // Discard receiver.
+  location()->Set(masm, rax);
+}
+
+
+void BinaryOpInstr::Compile(MacroAssembler* masm) {
+  // The right-hand value should not be on the stack---if it is a
+  // compiler-generated temporary it is in the accumulator.
+  ASSERT(!right()->is_on_stack());
+
+  Comment cmnt(masm, "[ BinaryOpInstr");
+  // We can overwrite one of the operands if it is a temporary.
+  OverwriteMode mode = NO_OVERWRITE;
+  if (left()->is_temporary()) {
+    mode = OVERWRITE_LEFT;
+  } else if (right()->is_temporary()) {
+    mode = OVERWRITE_RIGHT;
+  }
+
+  // Push both operands and call the specialized stub.
+  if (!left()->is_on_stack()) left()->Push(masm);
+  right()->Push(masm);
+  GenericBinaryOpStub stub(op(), mode, SMI_CODE_IN_STUB);
+  __ CallStub(&stub);
+  location()->Set(masm, rax);
+}
+
+
+void ReturnInstr::Compile(MacroAssembler* masm) {
+  // The location should be 'Effect'.  As a side effect, move the value to
+  // the accumulator.
+  Comment cmnt(masm, "[ ReturnInstr");
+  value()->Get(masm, rax);
+}
+
+
+void Constant::Get(MacroAssembler* masm, Register reg) {
+  __ Move(reg, handle_);
+}
+
+
+void Constant::Push(MacroAssembler* masm) {
+  __ Push(handle_);
+}
+
+
+static Operand ToOperand(SlotLocation* loc) {
+  switch (loc->type()) {
+    case Slot::PARAMETER: {
+      int count = CfgGlobals::current()->fun()->scope()->num_parameters();
+      return Operand(rbp, (1 + count - loc->index()) * kPointerSize);
+    }
+    case Slot::LOCAL: {
+      const int kOffset = JavaScriptFrameConstants::kLocal0Offset;
+      return Operand(rbp, kOffset - loc->index() * kPointerSize);
+    }
+    default:
+      UNREACHABLE();
+      return Operand(rax, 0);
+  }
+}
+
+
+void Constant::MoveToSlot(MacroAssembler* masm, SlotLocation* loc) {
+  __ Move(ToOperand(loc), handle_);
+}
+
+
+void SlotLocation::Get(MacroAssembler* masm, Register reg) {
+  __ movq(reg, ToOperand(this));
+}
+
+
+void SlotLocation::Set(MacroAssembler* masm, Register reg) {
+  __ movq(ToOperand(this), reg);
+}
+
+
+void SlotLocation::Push(MacroAssembler* masm) {
+  __ push(ToOperand(this));
+}
+
+
+void SlotLocation::Move(MacroAssembler* masm, Value* value) {
+  // We dispatch to the value because in some cases (temp or constant) we
+  // can use special instruction sequences.
+  value->MoveToSlot(masm, this);
+}
+
+
+void SlotLocation::MoveToSlot(MacroAssembler* masm, SlotLocation* loc) {
+  __ movq(kScratchRegister, ToOperand(this));
+  __ movq(ToOperand(loc), kScratchRegister);
+}
+
+
+void TempLocation::Get(MacroAssembler* masm, Register reg) {
+  switch (where_) {
+    case ACCUMULATOR:
+      if (!reg.is(rax)) __ movq(reg, rax);
+      break;
+    case STACK:
+      __ pop(reg);
+      break;
+    case NOT_ALLOCATED:
+      UNREACHABLE();
+  }
+}
+
+
+void TempLocation::Set(MacroAssembler* masm, Register reg) {
+  switch (where_) {
+    case ACCUMULATOR:
+      if (!reg.is(rax)) __ movq(rax, reg);
+      break;
+    case STACK:
+      __ push(reg);
+      break;
+    case NOT_ALLOCATED:
+      UNREACHABLE();
+  }
+}
+
+
+void TempLocation::Push(MacroAssembler* masm) {
+  switch (where_) {
+    case ACCUMULATOR:
+      __ push(rax);
+      break;
+    case STACK:
+    case NOT_ALLOCATED:
+      UNREACHABLE();
+  }
+}
+
+
+void TempLocation::Move(MacroAssembler* masm, Value* value) {
+  switch (where_) {
+    case ACCUMULATOR:
+      value->Get(masm, rax);
+      break;
+    case STACK:
+      value->Push(masm);
+      break;
+    case NOT_ALLOCATED:
+      UNREACHABLE();
+  }
+}
+
+
+void TempLocation::MoveToSlot(MacroAssembler* masm, SlotLocation* loc) {
+  switch (where_) {
+    case ACCUMULATOR:
+      __ movq(ToOperand(loc), rax);
+      break;
+    case STACK:
+      __ pop(ToOperand(loc));
+      break;
+    case NOT_ALLOCATED:
+      UNREACHABLE();
+  }
+}
+
+
+#undef __
+
+} }  // namespace v8::internal