The realbitscast.mod is currently failing on x86_64 and aarch64
Darwin since they do not have a 96b floating type. Disable the
type for all Darwin arches.
gcc/testsuite/ChangeLog:
* gm2/iso/pass/realbitscast.mod: Disable REAL96 on Darwin.
#elif defined(__ppc__)
# undef HAVE_REAL96
#elif defined(__ia64)
-# undef HAVE_REAL69
-#elif defined(__APPLE__) && defined(__i386__)
# undef HAVE_REAL96
#elif defined(__APPLE__)
-# define HAVE_REAL96
+(* No 96 bit floating type on Apple platforms *)
+# undef HAVE_REAL96
#endif