https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102177
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |dje at gcc dot gnu.org --- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> --- E.g. aarch64 has comment like: /* Normally the succ memory model must be stronger than fail, but in the unlikely event of fail being ACQUIRE and succ being RELEASE we need to promote succ to ACQ_REL so that we don't lose the acquire semantics. */ which makes me think that maybe it needs some work when the stronger requirement isn't honored. What about powerpc?