[FFmpeg-devel] [PATCH]: Align branch target for fft_sse.c, fft_3dn.c and fft_3dn2.c

[Loren Merritt]

On Sat, 26 May 2007, Zuxy Meng wrote:

> This patch aligns the loop entry on 16-byte aligned address, as
> recommended by Intel's and AMD's manuals. But I don't see any
> noticeable improvements on my Dothan. Anyone to test it on other CPUs?

Core2:
256-point fft got 11% faster.
2048-point fft got 2% slower.
Total time to decode vorbis is unchanged.

--Loren Merritt