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| author | Loren Merritt <lorenm@u.washington.edu> | 2008-02-03 03:21:47 +0000 |
|---|---|---|
| committer | Loren Merritt <lorenm@u.washington.edu> | 2008-02-03 03:21:47 +0000 |
| commit | 51f0ac65df62c8da804f2e995c38ab9adaf32b9b (patch) | |
| tree | 1678c2ab9a71dcb7fcab8a7480f6b58b18c0a609 /libavcodec | |
| parent | dc29622385dc323f7bf48a9718c625aa6a84cf43 (diff) | |
| download | ffmpeg-51f0ac65df62c8da804f2e995c38ab9adaf32b9b.tar.gz | |
remove some movq in ff_h264_idct8_add_mmx. 225->217 cycles on core2.
Originally committed as revision 11825 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/i386/h264dsp_mmx.c | 52 |
1 files changed, 23 insertions, 29 deletions
diff --git a/libavcodec/i386/h264dsp_mmx.c b/libavcodec/i386/h264dsp_mmx.c index 1ecb0cbef1..8d96ba7f1f 100644 --- a/libavcodec/i386/h264dsp_mmx.c +++ b/libavcodec/i386/h264dsp_mmx.c @@ -94,44 +94,38 @@ static inline void h264_idct8_1d(int16_t *block) { asm volatile( "movq 112(%0), %%mm7 \n\t" - "movq 80(%0), %%mm5 \n\t" + "movq 80(%0), %%mm0 \n\t" "movq 48(%0), %%mm3 \n\t" - "movq 16(%0), %%mm1 \n\t" + "movq 16(%0), %%mm5 \n\t" - "movq %%mm7, %%mm4 \n\t" - "movq %%mm3, %%mm6 \n\t" - "movq %%mm5, %%mm0 \n\t" - "movq %%mm7, %%mm2 \n\t" + "movq %%mm0, %%mm4 \n\t" + "movq %%mm5, %%mm1 \n\t" "psraw $1, %%mm4 \n\t" - "psraw $1, %%mm6 \n\t" - "psubw %%mm7, %%mm0 \n\t" - "psubw %%mm6, %%mm2 \n\t" - "psubw %%mm4, %%mm0 \n\t" - "psubw %%mm3, %%mm2 \n\t" - "psubw %%mm3, %%mm0 \n\t" - "paddw %%mm1, %%mm2 \n\t" - - "movq %%mm5, %%mm4 \n\t" - "movq %%mm1, %%mm6 \n\t" - "psraw $1, %%mm4 \n\t" - "psraw $1, %%mm6 \n\t" - "paddw %%mm5, %%mm4 \n\t" - "paddw %%mm1, %%mm6 \n\t" + "psraw $1, %%mm1 \n\t" + "paddw %%mm0, %%mm4 \n\t" + "paddw %%mm5, %%mm1 \n\t" "paddw %%mm7, %%mm4 \n\t" - "paddw %%mm5, %%mm6 \n\t" - "psubw %%mm1, %%mm4 \n\t" - "paddw %%mm3, %%mm6 \n\t" + "paddw %%mm0, %%mm1 \n\t" + "psubw %%mm5, %%mm4 \n\t" + "paddw %%mm3, %%mm1 \n\t" + + "psubw %%mm3, %%mm5 \n\t" + "psubw %%mm3, %%mm0 \n\t" + "paddw %%mm7, %%mm5 \n\t" + "psubw %%mm7, %%mm0 \n\t" + "psraw $1, %%mm3 \n\t" + "psraw $1, %%mm7 \n\t" + "psubw %%mm3, %%mm5 \n\t" + "psubw %%mm7, %%mm0 \n\t" - "movq %%mm0, %%mm1 \n\t" "movq %%mm4, %%mm3 \n\t" - "movq %%mm2, %%mm5 \n\t" - "movq %%mm6, %%mm7 \n\t" - "psraw $2, %%mm6 \n\t" + "movq %%mm1, %%mm7 \n\t" + "psraw $2, %%mm1 \n\t" "psraw $2, %%mm3 \n\t" + "paddw %%mm5, %%mm3 \n\t" "psraw $2, %%mm5 \n\t" + "paddw %%mm0, %%mm1 \n\t" "psraw $2, %%mm0 \n\t" - "paddw %%mm6, %%mm1 \n\t" - "paddw %%mm2, %%mm3 \n\t" "psubw %%mm4, %%mm5 \n\t" "psubw %%mm0, %%mm7 \n\t" |