https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99708
--- Comment #10 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Maybe we could do this instead:
--- a/gcc/config/rs6000/rs6000-c.cc
+++ b/gcc/config/rs6000/rs6000-c.cc
@@ -623,11 +623,13 @@ rs6000_cpu_cpp_builtins (cpp_reader *pfile)
if (TARGET_FRSQRTES)
builtin_define ("__RSQRTEF__");
if (TARGET_FLOAT128_TYPE)
+ {
builtin_define ("__FLOAT128_TYPE__");
+ if (ieee128_float_type_node)
+ builtin_define ("__SIZEOF_FLOAT128__=16");
+ }
if (ibm128_float_type_node)
builtin_define ("__SIZEOF_IBM128__=16");
- if (ieee128_float_type_node)
- builtin_define ("__SIZEOF_FLOAT128__=16");
#ifdef TARGET_LIBC_PROVIDES_HWCAP_IN_TCB
builtin_define ("__BUILTIN_CPU_SUPPORTS__");
#endif
It would be nice to add a test to the testsuite along the lines of:
/* { dg-do compile } */
#ifdef __SIZEOF_FLOAT128__
__float128 f;
#endif
