[Bug target/111768] X86: -march=native does not support alder lake big.little cache infor correctly

[crazylht at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111768

--- Comment #10 from Hongtao.liu <crazylht at gmail dot com> ---
> indeed (but I believe it did happen with Alder Lake already, by accident,
> with AVX512 on P-cores but not on E-cores).

AVX512 is physically fused off for Alderlake P-core, P-core and E-core share
the same ISA level(AVX2).