Add mips64 port.

src/mips64/cpu-mips64.cc

Index: src/mips64/cpu-mips64.cc
diff --git a/src/mips/cpu-mips.cc b/src/mips64/cpu-mips64.cc
similarity index 94%
copy from src/mips/cpu-mips.cc
copy to src/mips64/cpu-mips64.cc
index f2d50650b02e59407e4d44e43a45c6fed7fb005d..027d5a103e54b31a1bc001ffa87aba2842b6b6be 100644
--- a/src/mips/cpu-mips.cc
+++ b/src/mips64/cpu-mips64.cc
@@ -13,7 +13,7 @@
 
 #include "src/v8.h"
 
-#if V8_TARGET_ARCH_MIPS
+#if V8_TARGET_ARCH_MIPS64
 
 #include "src/assembler.h"
 #include "src/macro-assembler.h"
@@ -31,7 +31,7 @@ void CpuFeatures::FlushICache(void* start, size_t size) {
   }
 
 #if !defined (USE_SIMULATOR)
-#if defined(ANDROID)
+#if defined(ANDROID) && !defined(__LP64__)
   // Bionic cacheflush can typically run in userland, avoiding kernel call.
   char *end = reinterpret_cast<char *>(start) + size;
   cacheflush(
@@ -56,4 +56,4 @@ void CpuFeatures::FlushICache(void* start, size_t size) {
 
 } }  // namespace v8::internal
 
-#endif  // V8_TARGET_ARCH_MIPS
+#endif  // V8_TARGET_ARCH_MIPS64