https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71660
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org --- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Foir double-word compare and exchange you need double-word alignment, so I think the current alignment is correct.