https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100347
Iru Cai <mytbk920423 at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mytbk920423 at gmail dot com --- Comment #6 from Iru Cai <mytbk920423 at gmail dot com> --- I've checked host_detect_local_cpu() in gcc/config/i386/driver-i386.c. GCC detects x86 host CPU micro architecture by cpuid instruction instead of the APIs provided by the OS.