https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119174
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Andrew Pinski from comment #1) > It seems interesting to have a mem inside a mem for the call instruction. > Also maybe the post_inc is what it is getting confused here . Maybe that is correct here. the constraints support a mem there.