Christophe Gisquet 76c7277385 x86: sbrdsp: implement SSE2 hf_apply_noise ...

233 to 105 cycles on Arrandale and Win64.
Replacing the multiplication by s_m[m] by a pand and a pxor with
appropriate vectors is slower. Unrolling is a 15 cycles win.
A SSE version was 4 cycles slower.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

2013-04-19 13:19:45 +02:00

37 KiB

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