https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87171
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org --- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> --- "The goldmont builds run fine" doesn't mean anything, you need to use the __builtin_ia32_{*xsave*,*xrstor*,x[sg]etbv} builtins, otherwise it makes no difference. And the driver doesn't parse /proc/cpuinfo, but uses cpuid instruction. What does x86info --all print for you?