[FFmpeg-devel] [PATCH v2 1/5] libavfilter/x86/vf_gblur: add ff_postscale_slice_avx512()

[Paul B Mahol]

On Mon, Aug 16, 2021 at 1:49 PM James Almer <jamrial at gmail.com> wrote:

> On 8/16/2021 6:27 AM, Wu, Jianhua wrote:
> >>
> >> Yes, but we don't want to use AVX512 on hardware that downclocks
> heavily.
> >>
> >
> > It's okay. Should I updated the configure file to let the IceLake-AVX512
> to be the minimum baseline or add a new macro name AVX512ICL?
>
> Update the test in configure to look for an instruction available on Ice
> Lake (like VL), then update the check in cpu.c to make sure AVX2 is only
> enabled if AVX2-related flags Ice Lake and newer CPUs have in common are
> signaled.
>

I think you are confused. AVX2 is doing fine.

>
> >
> > Jianhua
> >
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