https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76774
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Component|c |target --- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Older power does not have ll/sc that act on 1 or 2 bytes. So it has to emulate them by using the 4 byte one with and and ors.