Create build structure for X64.

src/codegen.h

Index: src/codegen.h
diff --git a/src/codegen.h b/src/codegen.h
index 0f60463dee6c3ff8218c76ae938052ab39b0fb75..3d4599523257e7f4ca32f7163c13d9e0f15163cb 100644
--- a/src/codegen.h
+++ b/src/codegen.h
@@ -76,9 +76,15 @@
 enum OverwriteMode { NO_OVERWRITE, OVERWRITE_LEFT, OVERWRITE_RIGHT };
 
 
-#ifdef ARM
+#ifdef V8_ARCH_ARM

[Mads Ager (chromium), 2009/04/29 12:27:24]

You need to update the other build systems as well in order not to break builds.
 You need to make sure that V8_ARCH_ARM is defined instead of ARM.  You need to
do this in visual studio project, xcode project and the v8.gyp file.

[Lasse Reichstein, 2009/04/29 13:05:41]

Attempted done. No guarantees on the XCode project file. It's not made for hand
editing.

 #include "arm/codegen-arm.h"
-#else
+#endif
+
+#ifdef V8_ARCH_X64
+#include "x64/codegen-x64.h"
+#endif
+
+#ifdef V8_ARCH_IA32
 #include "ia32/codegen-ia32.h"
 #endif