https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110260
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> --- (In reply to Alexander Monakov from comment #4) > Um, sched1 is not enabled on x86 so -fno-schedule-insns does nothing — you > probably meant -fno-schedule-insns2? Yes, of course - thanks for correcting me. > Another thing to try is -fstack-reuse=none, as indicated by comment #1.