Christophe GISQUET f3e084909b mpegaudio: replace memcpy by SIMD code ...

By replacing memcpy with an unrolled loop using the alignment knowledge
it has, some speedup can be obtained.

Before (gcc 4.6.1): ~400 cycles
After: ~370 cycles

Overall, around 2% speed increase when decoding a 2400s mp3 to f32le.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

2012-02-15 20:11:54 -08:00

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