[Pixman] [ssse3]Optimization for fetch_scanline_x8r8g8b8

[Ma, Ling]

Although the code appended "or" operation, but after many tuning work,
I don't see any regression compared with original gcc memcpy assembly code.

Thanks
Ling

> -----Original Message-----
> From: Ma, Ling
> Sent: Thursday, September 09, 2010 1:55 PM
> To: 'sandmann at daimi.au.dk'; Xu, Samuel
> Cc: Siarhei Siamashka; pixman at lists.freedesktop.org; Liu, Xinyun
> Subject: RE: [Pixman] [ssse3]Optimization for fetch_scanline_x8r8g8b8
> 
> Hi Soren
> > I am also interested in the answer to the question of whether this
> > code was generated by passing intrinsics through the Intel compiler.
> 
> I'm original author for this code, the code is based on our original memcpy
> function which has been pushed into glibc.
> 
> Thanks
> Ling