[x265] asm: update count_nonzero, add testbench

[Steve Borho]

On Thu, Feb 20, 2014 at 9:27 PM, Satoshi Nakagawa <nakagawa424 at oki.com> wrote:
>
>>>+    pshufd      m1, m1, 0
>>>+    packssdw    m1, m1
>> packssdw is expendsive instruction, pshuflw+punpcklqdq is better.
>
> revised, thanks.
>
>
> # HG changeset patch
> # User Satoshi Nakagawa <nakagawa424 at oki.com>
> # Date 1392953002 -32400
> #      Fri Feb 21 12:23:22 2014 +0900
> # Node ID e4a80e46bd80e7d516dc881da7f38737c0071ccf
> # Parent  894bde574bc1678471e0c23ceb381a806768ea95
> asm: update count_nonzero, add testbench

Thanks, queued behind some bug fixes; should be pushed later tonight

-- 
Steve Borho