https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118717
--- Comment #3 from Ted Rodgers <ted.d.rodgers at gmail dot com> --- -march=native expands to: -march=sapphirerapids -mabm -mno-sgx -mrtm -mshstk --param=l1-cache-line-size=64 --param=l1-cache-size=48 --param=l2-cache-size=76800