[x265] [PATCH 1 of 2] improve count_nonzero by SSSE3

[chen]

At 2014-06-28 01:02:27,"Derek Buitenhuis" <derek.buitenhuis at gmail.com> wrote:
>On 6/27/2014 4:05 PM, chen wrote:
>> I can't understand what's your means. could you tell me more?
>> 
>> I use some SSSE3 instruction and process 16 pixels every loop.
>
>I meant keep both sse2 and ssse3 variants. Not sure if x86inc.asm macros
>help with this or not.
>
I use ssse3 instruction PSHUFB to replace 3 SSE2 instructions, the x86inc macro can't handle it.
After patch, this function is faster ~20% and codeCoeffNxN ~7% speedup, so I don't worry about old CPU's performance.

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