https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99708
--- Comment #16 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
So what about:
--- gcc/config/rs6000/rs6000-c.cc.jj 2022-02-17 10:24:16.756113275 +0100
+++ gcc/config/rs6000/rs6000-c.cc 2022-03-03 19:06:25.771981905 +0100
@@ -584,6 +584,10 @@ rs6000_target_modify_macros (bool define
rs6000_define_or_undefine_macro (true, "__float128=__ieee128");
else
rs6000_define_or_undefine_macro (false, "__float128");
+ if (ibm128_float_type_node != ieee128_float_type_node && define_p)
+ rs6000_define_or_undefine_macro (true, "__SIZEOF_FLOAT128__=16");
+ else
+ rs6000_define_or_undefine_macro (false, "__SIZEOF_FLOAT128__");
}
/* OPTION_MASK_FLOAT128_HARDWARE can be turned on if -mcpu=power9 is used or
via the target attribute/pragma. */
@@ -623,11 +627,9 @@ rs6000_cpu_cpp_builtins (cpp_reader *pfi
if (TARGET_FRSQRTES)
builtin_define ("__RSQRTEF__");
if (TARGET_FLOAT128_TYPE)
- builtin_define ("__FLOAT128_TYPE__");
- if (ibm128_float_type_node)
+ builtin_define ("__FLOAT128_TYPE__");
+ if (ibm128_float_type_node != ieee128_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
?
