On 05/03/2012 03:39 PM, Justin Ruggles wrote:
> The SSE version is slower than the MMX version on Athlon64 and Sandy Bridge,
> but the 3-arg AVX version is faster on Sandy Bridge.
> ---
> Athlon64
>   C - 26322
> MMX -  7997
> SSE -  8662
> 
> Sandy Bridge
>   C - 13011
> MMX -  4262
> SSE -  4680
> AVX -  3960
> 
> Note that although the new code is simpler, using it as SSE is not any
> faster than the existing SSE version. The AVX version is only faster
> because of the 3-arg ops in SBUTTERFLYPS2.
> 
>  libavresample/x86/audio_convert.asm    |   40 
> ++++++++++++++++----------------
>  libavresample/x86/audio_convert_init.c |    6 ++--
>  libavutil/x86/x86util.asm              |    6 ++++
>  3 files changed, 29 insertions(+), 23 deletions(-)

ping.

-Justin

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