https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69454
--- Comment #10 from H.J. Lu <hjl.tools at gmail dot com> --- (In reply to Jakub Jelinek from comment #9) > convert_scalars_to_vector (i.e. the stv pass) is before that though, it is > inserted after combine, while ix86_finalize_stack_realign_flags is during > pro_and_epilogue pass after RA. Change ix86_finalize_stack_realign_flags to ix86_update_stack_boundary.