https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107590
--- Comment #17 from Sergey Fedorov <vital.had at gmail dot com> --- (In reply to Andrew Pinski from comment #13) > 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? Andrew, could you suggest a way to check if that was the issue? (I could perhaps revert the whole commit, but that may be excessive, perhaps a more precise change can be done?)