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| author | Loren Merritt <lorenm@u.washington.edu> | 2008-02-06 04:44:21 +0000 |
|---|---|---|
| committer | Loren Merritt <lorenm@u.washington.edu> | 2008-02-06 04:44:21 +0000 |
| commit | 20d565be6d52c38495eeaa8904c02315421629b3 (patch) | |
| tree | 7fcc56ad09801e6e42c0aa2626c369025b3b2ca0 /libavcodec/i386 | |
| parent | 7080ec2937076596d37d9eba7f137412fcc0e4b9 (diff) | |
| download | ffmpeg-20d565be6d52c38495eeaa8904c02315421629b3.tar.gz | |
put loop counter in a register if possible. makes some of the qpel functions 3% faster.
Originally committed as revision 11876 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/i386')
| -rw-r--r-- | libavcodec/i386/dsputil_mmx.c | 4 | ||||
| -rw-r--r-- | libavcodec/i386/h264dsp_mmx.c | 8 |
2 files changed, 6 insertions, 6 deletions
diff --git a/libavcodec/i386/dsputil_mmx.c b/libavcodec/i386/dsputil_mmx.c index 611ee37108..55343181de 100644 --- a/libavcodec/i386/dsputil_mmx.c +++ b/libavcodec/i386/dsputil_mmx.c @@ -2061,7 +2061,7 @@ static void OPNAME ## mpeg4_qpel16_h_lowpass_mmx2(uint8_t *dst, uint8_t *src, in "add %4, %1 \n\t"\ "decl %2 \n\t"\ " jnz 1b \n\t"\ - : "+a"(src), "+c"(dst), "+m"(h)\ + : "+a"(src), "+c"(dst), "+g"(h)\ : "d"((long)srcStride), "S"((long)dstStride), /*"m"(ff_pw_20), "m"(ff_pw_3),*/ "m"(temp), "m"(ROUNDER)\ : "memory"\ );\ @@ -2174,7 +2174,7 @@ static void OPNAME ## mpeg4_qpel8_h_lowpass_mmx2(uint8_t *dst, uint8_t *src, int "add %4, %1 \n\t"\ "decl %2 \n\t"\ " jnz 1b \n\t"\ - : "+a"(src), "+c"(dst), "+m"(h)\ + : "+a"(src), "+c"(dst), "+g"(h)\ : "S"((long)srcStride), "D"((long)dstStride), /*"m"(ff_pw_20), "m"(ff_pw_3),*/ "m"(temp), "m"(ROUNDER)\ : "memory"\ );\ diff --git a/libavcodec/i386/h264dsp_mmx.c b/libavcodec/i386/h264dsp_mmx.c index 4dc57321a3..340d9fab5f 100644 --- a/libavcodec/i386/h264dsp_mmx.c +++ b/libavcodec/i386/h264dsp_mmx.c @@ -796,7 +796,7 @@ static av_noinline void OPNAME ## h264_qpel4_h_lowpass_ ## MMX(uint8_t *dst, uin "add %4, %1 \n\t"\ "decl %2 \n\t"\ " jnz 1b \n\t"\ - : "+a"(src), "+c"(dst), "+m"(h)\ + : "+a"(src), "+c"(dst), "+g"(h)\ : "d"((long)srcStride), "S"((long)dstStride), "m"(ff_pw_5), "m"(ff_pw_16)\ : "memory"\ );\ @@ -930,7 +930,7 @@ static av_noinline void OPNAME ## h264_qpel4_hv_lowpass_ ## MMX(uint8_t *dst, in "add %3, %1 \n\t"\ "decl %2 \n\t"\ " jnz 1b \n\t"\ - : "+a"(tmp), "+c"(dst), "+m"(h)\ + : "+a"(tmp), "+c"(dst), "+g"(h)\ : "S"((long)dstStride)\ : "memory"\ );\ @@ -987,7 +987,7 @@ static av_noinline void OPNAME ## h264_qpel8_h_lowpass_ ## MMX(uint8_t *dst, uin "add %4, %1 \n\t"\ "decl %2 \n\t"\ " jnz 1b \n\t"\ - : "+a"(src), "+c"(dst), "+m"(h)\ + : "+a"(src), "+c"(dst), "+g"(h)\ : "d"((long)srcStride), "S"((long)dstStride), "m"(ff_pw_5), "m"(ff_pw_16)\ : "memory"\ );\ @@ -1201,7 +1201,7 @@ static av_noinline void OPNAME ## h264_qpel8or16_hv_lowpass_ ## MMX(uint8_t *dst "add %3, %1 \n\t"\ "decl %2 \n\t"\ " jnz 1b \n\t"\ - : "+a"(tmp), "+c"(dst), "+m"(h)\ + : "+a"(tmp), "+c"(dst), "+g"(h)\ : "S"((long)dstStride)\ : "memory"\ );\ |