https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66599
ktkachov at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |ktkachov at gcc dot gnu.org --- Comment #1 from ktkachov at gcc dot gnu.org --- Look at: https://gcc.gnu.org/onlinedocs/gcc/Machine-Constraints.html#Machine-Constraints The one you want, I think, is the "Q" constraint