https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109484
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- but you clobber 'temp' early and fail to indicate that so GCC allocates the same register as part of the "+m" output.
rguenth at gcc dot gnu.org via Gcc-bugs Wed, 12 Apr 2023 03:51:50 -0700
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109484
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- but you clobber 'temp' early and fail to indicate that so GCC allocates the same register as part of the "+m" output.