https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82641
--- Comment #8 from Tamar Christina <tnfchris at gcc dot gnu.org> --- > It would be great if `+crc` can work if it's not ambiguous. Requiring > `arch=armv8-a+crc` works for me too, and it'll just require more preprocessor > checks..... Yes I'm adding `+crc` and `arch=...`.