Add mips64 port.

src/hydrogen-instructions.cc

 // Copyright 2012 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/double.h"
 #include "src/factory.h"
 #include "src/hydrogen-infer-representation.h"
 #include "src/property-details-inl.h"
 
 #if V8_TARGET_ARCH_IA32
 #include "src/ia32/lithium-ia32.h"  // NOLINT
 #elif V8_TARGET_ARCH_X64
 #include "src/x64/lithium-x64.h"  // NOLINT
 #elif V8_TARGET_ARCH_ARM64
 #include "src/arm64/lithium-arm64.h"  // NOLINT
 #elif V8_TARGET_ARCH_ARM
 #include "src/arm/lithium-arm.h"  // NOLINT
 #elif V8_TARGET_ARCH_MIPS
 #include "src/mips/lithium-mips.h"  // NOLINT
+#elif V8_TARGET_ARCH_MIPS64
+#include "src/mips64/lithium-mips64.h"  // NOLINT
 #elif V8_TARGET_ARCH_X87
 #include "src/x87/lithium-x87.h"  // NOLINT
 #else
 #error Unsupported target architecture.
 #endif
 
 #include "src/base/safe_math.h"
 
 namespace v8 {
 namespace internal {
@@ skipping 4735 matching lines @@
       break;
     case HObjectAccess::kExternalMemory:
       os << "[external-memory]";
       break;
   }
 
   return os << "@" << access.offset();
 }
 
 } }  // namespace v8::internal