[FFmpeg-devel] looking for comparison of intrinsics vs hand written asm

Måns Rullgård mans
Fri Oct 30 17:15:49 CET 2009


Attila Kinali <attila at kinali.ch> writes:

> Moin,
>
> I had discussion with some prof about code optimization
> and it came to a point where we disagreed on how big
> the difference between intrinsics and hand written asm
> is. I was quite sure that i've seen somewhere such a comparison,
> done by someone with a clue (ie both intrinsics and asm had
> a good quality), but cannot find anything anymore.
>
> Hence, i'd like to ask if someone has such a comparison.
> If possible also against intrinsics compiled with icc.

I challenge anyone to get close to the performance of our NEON asm
using intrinsics.

-- 
M?ns Rullg?rd
mans at mansr.com



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