Add mips64 port.

src/lithium-codegen.cc

 // Copyright 2013 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.
 
 #include "src/v8.h"
 
 #include "src/lithium-codegen.h"
 
 #if V8_TARGET_ARCH_IA32
 #include "src/ia32/lithium-ia32.h"  // NOLINT
 #include "src/ia32/lithium-codegen-ia32.h"  // NOLINT
 #elif V8_TARGET_ARCH_X64
 #include "src/x64/lithium-x64.h"  // NOLINT
 #include "src/x64/lithium-codegen-x64.h"  // NOLINT
 #elif V8_TARGET_ARCH_ARM
 #include "src/arm/lithium-arm.h"  // NOLINT
 #include "src/arm/lithium-codegen-arm.h"  // NOLINT
 #elif V8_TARGET_ARCH_ARM64
 #include "src/arm64/lithium-arm64.h"  // NOLINT
 #include "src/arm64/lithium-codegen-arm64.h"  // NOLINT
 #elif V8_TARGET_ARCH_MIPS
 #include "src/mips/lithium-mips.h"  // NOLINT
 #include "src/mips/lithium-codegen-mips.h"  // NOLINT
+#elif V8_TARGET_ARCH_MIPS64
+#include "src/mips64/lithium-mips64.h"  // NOLINT
+#include "src/mips64/lithium-codegen-mips64.h"  // NOLINT
 #elif V8_TARGET_ARCH_X87
 #include "src/x87/lithium-x87.h"  // NOLINT
 #include "src/x87/lithium-codegen-x87.h"  // NOLINT
 #else
 #error Unsupported target architecture.
 #endif
 
 namespace v8 {
 namespace internal {
 
@@ skipping 190 matching lines @@
   chunk_->AddDeprecationDependency(map);
 }
 
 
 void LCodeGenBase::AddStabilityDependency(Handle<Map> map) {
   if (!map->is_stable()) return Abort(kMapBecameUnstable);
   chunk_->AddStabilityDependency(map);
 }
 
 } }  // namespace v8::internal