https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77964
--- Comment #3 from Markus Trippelsdorf <trippels at gcc dot gnu.org> --- (In reply to Jakub Jelinek from comment #2) > Can you bisect? Suspect changes might be the shrink wrapping changes from > last night - r241063 and r241059-r241061. It is much older issue. Even gcc from 20160928 fails. And bisecting is annoying, because unfortunately the failure only happens on bare metal (booting under qemu is fine). So I have to reboot all the time. I will try to bisect by looking at the assembly output.