Re: [PATCH/RFC] SIMD optimizations for SBC encoder analysis filter

Siarhei Siamashka
2009-01-09T16:50:54Z

On Tuesday 06 January 2009 04:49:06 ext Marcel Holtmann wrote:
> > The attached patch contains what I would consider to be a final variant.
> > MMX support is now complete. It works for both x86 and amd64, has runtime
> > autodetection of MMX availability, supports 4 and 8 subbands cases. I
> > also ensured that only original MMX instructions are used (and no SSE or
> > other later additions), so the code should work fine even on the old
> > Pentium1 MMX. New MMX optimized functions produce bit identical results
> > when compared with bluez-4.25 release.
> >
> > With this patch applied, new filtering functions are noticeably faster
> > than than the old ones on x86 (so now they are both faster and have
> > better quality). Assembly optimizations for the other platforms can be
> > easily added too.
>
> can you re-base your patch against the latest tree and re-send the
> patch.

Yes, I will submit an updated SIMD optimizations patchset in a few days.

Best regards,
Siarhei Siamashka