https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68986
--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> --- (In reply to Jakub Jelinek from comment #9) > I need additional -march=x86-64 to trigger this. With that it started with > r228231. Note that is with #c4 testcase.