https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107590
--- Comment #13 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Oh yes there could be a bug here when the byte (lbarx/stbcx.) and half-word (lharx/sthcx.) instruction support was added (which was for Power8; r0-123873-g4b02c96265fb52). But that was 9 years ago. Is powerpc-darwin really coming back in style or something?