https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107304
--- Comment #5 from Hongtao.liu <crazylht at gmail dot com> --- (In reply to H.J. Lu from comment #4) > Since the default is -march=tigerlake, it enables AVX512 in the middle end. > When "arch=alderlake" disables AVX512, we fails to expand AVX512 to > non-AVX512 > ISAs. It means that target_clones can't be more restrictive than the > default. We > should provide better diagnostics. Is there any place checking ISA difference for target_clones?