Add X32 port into V8

src/macro-assembler.h

 // Copyright 2012 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
@@ skipping 54 matching lines @@
 #include "ia32/assembler-ia32.h"
 #include "ia32/assembler-ia32-inl.h"
 #include "code.h"  // must be after assembler_*.h
 #include "ia32/macro-assembler-ia32.h"
 #elif V8_TARGET_ARCH_X64
 #include "assembler.h"
 #include "x64/assembler-x64.h"
 #include "x64/assembler-x64-inl.h"
 #include "code.h"  // must be after assembler_*.h
 #include "x64/macro-assembler-x64.h"
+#elif V8_TARGET_ARCH_X32
+#include "assembler.h"
+#include "x32/assembler-x32.h"
+#include "x32/assembler-x32-inl.h"
+#include "code.h"  // must be after assembler_*.h
+#include "x32/macro-assembler-x32.h"
 #elif V8_TARGET_ARCH_ARM
 #include "arm/constants-arm.h"
 #include "assembler.h"
 #include "arm/assembler-arm.h"
 #include "arm/assembler-arm-inl.h"
 #include "code.h"  // must be after assembler_*.h
 #include "arm/macro-assembler-arm.h"
 #elif V8_TARGET_ARCH_MIPS
 #include "mips/constants-mips.h"
 #include "assembler.h"
@@ skipping 112 matching lines @@
           isolate);
     }
     return ExternalReference::new_space_allocation_limit_address(isolate);
   }
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_MACRO_ASSEMBLER_H_