https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90811
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Created attachment 46479 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46479&action=edit gcc10-pr90811-overalign.patch Perhaps during estimate_stack_frame_size we should make sure not to adjust DECL_ALIGN of local variables like this?