https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107590
--- Comment #16 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). Any update on this by the way? It could be that we keep getting obscure failures due to this issue being unfixed.
