Hello! On 7/28/22 13:44, Richard Biener wrote:
there's been rumors and confusion about ALP raising the x86_64 architecture level to v3 which requires CPUs with AVX2 support and how this will affect openSUSE Factory. Sofar openSUSE Factory was supposed to be not affected but I think it makes sense to re-consider the current -v1 usage given what other distros are doing.
I assume the other distros are most likely Fedora, Ubuntu and Arch?
Thus I would propose raising the x86_64 architecture level to x86-64-v2 for openSUSE Factory. v2 requires CMPXCHG16B, [SL]AHF, POPCNT and SSE4_2 (and the predecessor SSE extensions) but not AVX, BMI or FMA.
I think it would be good to know which Intel and AMD CPUs were the first to introduce x86_64-v2, so that users know which CPUs will stop working with Tumbleweed. Adrian