https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80416
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> --- or better asm volatile ("" : "=r" (q) : "0" (q));
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80416
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> --- or better asm volatile ("" : "=r" (q) : "0" (q));