[x264-devel] [PATCH 1/6] ppc: Manually unroll the horizontal prediction loop

[Luca Barbato]

On 02/11/2016 20:17, Henrik Gramner wrote:
> On Tue, Nov 1, 2016 at 11:16 PM, Luca Barbato <lu_zero at gentoo.org> wrote:
>> Doubles the speedup from the function (from being slower to be over
>> twice as fast than C).
> 
> Out of curiosity; did you try anything in between "not unrolled" and
> "fully unrolled", like unrolling by 4 per iteration for example?

I didn't, shouldn't take much to play with it if you are more curious on
the results or you prefer a more compact function.

lu