https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111768
--- Comment #11 from Alexander Monakov <amonakov at gcc dot gnu.org> --- (In reply to Hongtao.liu from comment #10) > > 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). I think Arsen means initial Alder Lake batches, where AVX-512 wasn't yet fused off (but BIOS support was unofficial/experimental anyway).
