Hello Sergey, On 06 Oct 14:20, Shalnov, Sergey wrote: > Jakub, > I completely agree with you. I fixed the patch. > Currently, TARGET_PREFER256 will work on architectures with 512VL. It will > not work otherwise. > > I will try to find better solution for this. I think I need to look into > register classes to configure > available registers for 512F and 512VL in case of TARGET_PREFER_AVX256. Probably I am missing the point, but IMHO think register classes are loosely connected to preferred modes of operations.
> I would propose to merge this patch as temporal solution. Why not to implement generic solution right now? I don't think're in hurry here to push temporal solution unless we have some reasoning. I see only few mentions of TARGET_PREFER_AVX256 in i386.[c|md] and nothing looks suspicious to me. > > Sergey -- Thanks, K
