https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118222
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Last reconfirmed| |2024-12-27
Status|UNCONFIRMED |WAITING
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
GCC has an IPA RA.
So if is_ENOTSUP is local to that file, GCC will see if edx is not clobbered by
that function, GCC can assume it can be used across the call.
I am suspecting you are seeing that effect.
You can turn that off with -fno-ipa-ra . See
https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/Optimize-Options.html#index-fipa-ra
also.
Also can you attach the preprocessed source for copy.o and the exact command
line that is used to compile it? as directed on https://gcc.gnu.org/bugs/ .
