[FFmpeg-devel] YMM registers with AMD

Ronald S. Bultje rsbultje at gmail.com
Sun Feb 9 03:55:03 CET 2014


Hi,

On Sat, Feb 8, 2014 at 9:13 PM, James Almer <jamrial at gmail.com> wrote:

> [..]

but it may be a good idea introducing an AV_CPU_FLAG_AVXSLOW flag to disable
> the avx version of functions using YMM registers if there's also one using
> XMM
> and is confirmed to be faster on these CPUs.
>

If this is indeed true, then that sounds like an appropriate idea.

Ronald


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