Add mips64 port.

src/lithium.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/lithium.h"
 #include "src/scopes.h"
 #include "src/serialize.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_MIPS
 #include "src/mips/lithium-mips.h"  // NOLINT
 #include "src/mips/lithium-codegen-mips.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_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 "Unknown architecture."
 #endif
 
 namespace v8 {
 namespace internal {
 
@@ skipping 578 matching lines @@
 
 
 LPhase::~LPhase() {
   if (ShouldProduceTraceOutput()) {
     isolate()->GetHTracer()->TraceLithium(name(), chunk_);
   }
 }
 
 
 } }  // namespace v8::internal