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| author | Loren Merritt <lorenm@u.washington.edu> | 2006-03-04 19:56:01 +0000 |
|---|---|---|
| committer | Loren Merritt <lorenm@u.washington.edu> | 2006-03-04 19:56:01 +0000 |
| commit | 7a5b2fa812ce33e729638318e410438f8f12c341 (patch) | |
| tree | 5933839132af67ea084503c936cb8b027920c979 /libavcodec/i386/h264dsp_mmx.c | |
| parent | 14b005d009f0b779dbf22121cc759880d9e05281 (diff) | |
| download | ffmpeg-7a5b2fa812ce33e729638318e410438f8f12c341.tar.gz | |
remove some useless instructions
Originally committed as revision 5109 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/i386/h264dsp_mmx.c')
| -rw-r--r-- | libavcodec/i386/h264dsp_mmx.c | 22 |
1 files changed, 4 insertions, 18 deletions
diff --git a/libavcodec/i386/h264dsp_mmx.c b/libavcodec/i386/h264dsp_mmx.c index 6db26dd678..f46a8965f4 100644 --- a/libavcodec/i386/h264dsp_mmx.c +++ b/libavcodec/i386/h264dsp_mmx.c @@ -109,12 +109,9 @@ void ff_h264_idct_dc_add_mmx2(uint8_t *dst, int16_t *block, int stride) int dc = (block[0] + 32) >> 6; asm volatile( "movd %0, %%mm0 \n\t" - "pxor %%mm7, %%mm7 \n\t" "pshufw $0, %%mm0, %%mm0 \n\t" "pxor %%mm1, %%mm1 \n\t" "psubw %%mm0, %%mm1 \n\t" - "pmaxsw %%mm7, %%mm0 \n\t" - "pmaxsw %%mm7, %%mm1 \n\t" "packuswb %%mm0, %%mm0 \n\t" "packuswb %%mm1, %%mm1 \n\t" ::"r"(dc) @@ -149,12 +146,9 @@ void ff_h264_idct8_dc_add_mmx2(uint8_t *dst, int16_t *block, int stride) int y; asm volatile( "movd %0, %%mm0 \n\t" - "pxor %%mm7, %%mm7 \n\t" "pshufw $0, %%mm0, %%mm0 \n\t" "pxor %%mm1, %%mm1 \n\t" "psubw %%mm0, %%mm1 \n\t" - "pmaxsw %%mm7, %%mm0 \n\t" - "pmaxsw %%mm7, %%mm1 \n\t" "packuswb %%mm0, %%mm0 \n\t" "packuswb %%mm1, %%mm1 \n\t" ::"r"(dc) @@ -972,7 +966,6 @@ static void OPNAME ## h264_qpel16_hv_lowpass_ ## MMX(uint8_t *dst, int16_t *tmp, static void OPNAME ## pixels4_l2_shift5_ ## MMX(uint8_t *dst, int16_t *src16, uint8_t *src8, int dstStride, int src8Stride, int h)\ {\ asm volatile(\ - "pxor %%mm7, %%mm7 \n\t"\ "movq %5, %%mm6 \n\t"\ "movq (%1), %%mm0 \n\t"\ "movq 24(%1), %%mm1 \n\t"\ @@ -980,10 +973,8 @@ static void OPNAME ## pixels4_l2_shift5_ ## MMX(uint8_t *dst, int16_t *src16, ui "paddw %%mm6, %%mm1 \n\t"\ "psraw $5, %%mm0 \n\t"\ "psraw $5, %%mm1 \n\t"\ - "pmaxsw %%mm7, %%mm0 \n\t"\ - "pmaxsw %%mm7, %%mm1 \n\t"\ - "packuswb %%mm7, %%mm0 \n\t"\ - "packuswb %%mm7, %%mm1 \n\t"\ + "packuswb %%mm0, %%mm0 \n\t"\ + "packuswb %%mm1, %%mm1 \n\t"\ PAVGB" (%0), %%mm0 \n\t"\ PAVGB" (%0,%3), %%mm1 \n\t"\ OP(%%mm0, (%2), %%mm4, d)\ @@ -996,10 +987,8 @@ static void OPNAME ## pixels4_l2_shift5_ ## MMX(uint8_t *dst, int16_t *src16, ui "paddw %%mm6, %%mm1 \n\t"\ "psraw $5, %%mm0 \n\t"\ "psraw $5, %%mm1 \n\t"\ - "pmaxsw %%mm7, %%mm0 \n\t"\ - "pmaxsw %%mm7, %%mm1 \n\t"\ - "packuswb %%mm7, %%mm0 \n\t"\ - "packuswb %%mm7, %%mm1 \n\t"\ + "packuswb %%mm0, %%mm0 \n\t"\ + "packuswb %%mm1, %%mm1 \n\t"\ PAVGB" (%0), %%mm0 \n\t"\ PAVGB" (%0,%3), %%mm1 \n\t"\ OP(%%mm0, (%2), %%mm4, d)\ @@ -1011,7 +1000,6 @@ static void OPNAME ## pixels4_l2_shift5_ ## MMX(uint8_t *dst, int16_t *src16, ui static void OPNAME ## pixels8_l2_shift5_ ## MMX(uint8_t *dst, int16_t *src16, uint8_t *src8, int dstStride, int src8Stride, int h)\ {\ asm volatile(\ - "pxor %%mm7, %%mm7 \n\t"\ "movq %0, %%mm6 \n\t"\ ::"m"(ff_pw_16)\ );\ @@ -1023,8 +1011,6 @@ static void OPNAME ## pixels8_l2_shift5_ ## MMX(uint8_t *dst, int16_t *src16, ui "paddw %%mm6, %%mm1 \n\t"\ "psraw $5, %%mm0 \n\t"\ "psraw $5, %%mm1 \n\t"\ - "pmaxsw %%mm7, %%mm0 \n\t"\ - "pmaxsw %%mm7, %%mm1 \n\t"\ "packuswb %%mm1, %%mm0 \n\t"\ PAVGB" (%0), %%mm0 \n\t"\ OP(%%mm0, (%2), %%mm5, q)\ |