Do not define CRT_HAS_128BIT for MIPS64

[petarj]

Summary

Do not define it for MIPS64 until its backend supports it.
See the bug report [1] for more information.

[1] http://llvm.org/bugs/show_bug.cgi?id=20098

[joerg]

With the change, LGTM.

lib/builtins/int_types.h

59 ↗

(On Diff #17388)

Add a comment with the bug reference here please (i.e. MIPS64 issue: PR 20098).

[joerg]

lib/builtins/int_types.h

59 ↗

(On Diff #17388)

I think this should also be restricted to clang, GCC works fine, doesn't it?

[petarj]

lib/builtins/int_types.h

59 ↗

(On Diff #17388)

Done.
Yes, it's clang only. I have just updated the patch.

compiler-rt/trunk/lib/builtins/int_types.h

#if _YUGA_LITTLE_ENDIAN
         su_int high;
 #else
         su_int high;
         su_int low;
 #endif /* _YUGA_LITTLE_ENDIAN */
     }s;
 } udwords;
 
-#if __LP64__
+/* MIPS64 issue: PR 20098 */
+#if defined(__LP64__) && !(defined(__mips__) && defined(__clang__))
 #define CRT_HAS_128BIT
 #endif
 
 #ifdef CRT_HAS_128BIT
 typedef int      ti_int __attribute__ ((mode (TI)));
 typedef unsigned tu_int __attribute__ ((mode (TI)));
 
 typedef union