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| author | Michael Niedermayer <michaelni@gmx.at> | 2003-01-05 19:53:07 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2003-01-05 19:53:07 +0000 |
| commit | 3643bd9c312355cc463fa5892d125cdb95e7d42c (patch) | |
| tree | 3af799c76d416df4ecc5fe3776eb0ad68495b7e8 | |
| parent | e9effafdf929571275dfd9efd30af7806bec1704 (diff) | |
| download | ffmpeg-3643bd9c312355cc463fa5892d125cdb95e7d42c.tar.gz | |
slowdown / gcc 2.95.* bug workaround (this should be reversed as soon as gcc 2.95.* support is droped)
Originally committed as revision 1397 to svn://svn.ffmpeg.org/ffmpeg/trunk
| -rw-r--r-- | libavcodec/i386/dsputil_mmx.c | 43 |
1 files changed, 34 insertions, 9 deletions
diff --git a/libavcodec/i386/dsputil_mmx.c b/libavcodec/i386/dsputil_mmx.c index b6795c035c..86dd543e39 100644 --- a/libavcodec/i386/dsputil_mmx.c +++ b/libavcodec/i386/dsputil_mmx.c @@ -677,6 +677,9 @@ void OPNAME ## mpeg4_qpel16_h_lowpass_mmx2(uint8_t *dst, uint8_t *src, int dstSt uint64_t temp;\ \ asm volatile(\ + "pushl %0 \n\t"\ + "pushl %1 \n\t"\ + "pushl %2 \n\t"\ "pxor %%mm7, %%mm7 \n\t"\ "1: \n\t"\ "movq (%0), %%mm0 \n\t" /* ABCDEFGH */\ @@ -787,8 +790,11 @@ void OPNAME ## mpeg4_qpel16_h_lowpass_mmx2(uint8_t *dst, uint8_t *src, int dstSt "addl %4, %1 \n\t"\ "decl %2 \n\t"\ " jnz 1b \n\t"\ - : "+r"(src), "+r"(dst), "+g"(h)\ - : "r"(srcStride), "r"(dstStride), "m"(ff_pw_20), "m"(ff_pw_3), "m"(temp), "m"(ROUNDER)\ + "popl %2 \n\t"\ + "popl %1 \n\t"\ + "popl %0 \n\t"\ + :: "r"(src), "r"(dst), "r"(h),\ + "r"(srcStride), "r"(dstStride), "m"(ff_pw_20), "m"(ff_pw_3), "m"(temp), "m"(ROUNDER)\ );\ }\ \ @@ -871,8 +877,12 @@ void OPNAME ## mpeg4_qpel16_v_lowpass_mmx(uint8_t *dst, uint8_t *src, int dstStr count=4;\ \ /*FIXME reorder for speed */\ +/*FIXME remove push/pop gcc 2.95 bug workaround here and in the other 3 lowpass filters */\ asm volatile(\ /*"pxor %%mm7, %%mm7 \n\t"*/\ + "pushl %0 \n\t"\ + "pushl %1 \n\t"\ + "pushl %2 \n\t"\ "1: \n\t"\ "movq (%0), %%mm0 \n\t"\ "movq 8(%0), %%mm1 \n\t"\ @@ -908,15 +918,21 @@ void OPNAME ## mpeg4_qpel16_v_lowpass_mmx(uint8_t *dst, uint8_t *src, int dstStr "addl %8, %1 \n\t"\ "decl %2 \n\t"\ " jnz 1b \n\t"\ - \ - : "+r"(temp_ptr), "+r"(dst), "+g"(count)\ - : "r"(dstStride), "r"(2*dstStride), "m"(ff_pw_20), "m"(ff_pw_3), "m"(ROUNDER), "g"(4-14*dstStride)\ + "popl %2 \n\t"\ + "popl %1 \n\t"\ + "popl %0 \n\t"\ + \ + :: "r"(temp_ptr), "r"(dst), "r"(count),\ + "r"(dstStride), "r"(2*dstStride), "m"(ff_pw_20), "m"(ff_pw_3), "m"(ROUNDER), "g"(4-14*dstStride)\ );\ }\ void OPNAME ## mpeg4_qpel8_h_lowpass_mmx2(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h){\ uint64_t temp;\ \ asm volatile(\ + "pushl %0 \n\t"\ + "pushl %1 \n\t"\ + "pushl %2 \n\t"\ "pxor %%mm7, %%mm7 \n\t"\ "1: \n\t"\ "movq (%0), %%mm0 \n\t" /* ABCDEFGH */\ @@ -973,8 +989,11 @@ void OPNAME ## mpeg4_qpel8_h_lowpass_mmx2(uint8_t *dst, uint8_t *src, int dstStr "addl %4, %1 \n\t"\ "decl %2 \n\t"\ " jnz 1b \n\t"\ - : "+r"(src), "+r"(dst), "+g"(h)\ - : "r"(srcStride), "r"(dstStride), "m"(ff_pw_20), "m"(ff_pw_3), "m"(temp), "m"(ROUNDER)\ + "popl %2 \n\t"\ + "popl %1 \n\t"\ + "popl %0 \n\t"\ + :: "r"(src), "r"(dst), "r"(h),\ + "r"(srcStride), "r"(dstStride), "m"(ff_pw_20), "m"(ff_pw_3), "m"(temp), "m"(ROUNDER)\ );\ }\ \ @@ -1036,6 +1055,9 @@ void OPNAME ## mpeg4_qpel8_v_lowpass_mmx(uint8_t *dst, uint8_t *src, int dstStri \ /*FIXME reorder for speed */\ asm volatile(\ + "pushl %0 \n\t"\ + "pushl %1 \n\t"\ + "pushl %2 \n\t"\ /*"pxor %%mm7, %%mm7 \n\t"*/\ "1: \n\t"\ "movq (%0), %%mm0 \n\t"\ @@ -1060,9 +1082,12 @@ void OPNAME ## mpeg4_qpel8_v_lowpass_mmx(uint8_t *dst, uint8_t *src, int dstStri "addl %8, %1 \n\t"\ "decl %2 \n\t"\ " jnz 1b \n\t"\ + "popl %2 \n\t"\ + "popl %1 \n\t"\ + "popl %0 \n\t"\ \ - : "+r"(temp_ptr), "+r"(dst), "+g"(count)\ - : "r"(dstStride), "r"(2*dstStride), "m"(ff_pw_20), "m"(ff_pw_3), "m"(ROUNDER), "g"(4-6*dstStride)\ + :: "r"(temp_ptr), "r"(dst), "r"(count),\ + "r"(dstStride), "r"(2*dstStride), "m"(ff_pw_20), "m"(ff_pw_3), "m"(ROUNDER), "g"(4-6*dstStride)\ );\ } |