https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117675
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- - [(match_operand:DI 1 "arm_sync_memory_operand" "Q")] + [(match_operand:DI 1 "memory_operand" "m")] Oh I have seen this before ...