[Ffmpeg-devel] [PATCH] Avoid generating MMX2 code for fft_3dn2.c

[Zuxy Meng]

2006/5/18, Reimar D?ffinger <Reimar.Doeffinger at stud.uni-karlsruhe.de>:
> Hi,
> On Thu, May 18, 2006 at 08:38:55PM +0800, Zuxy Meng wrote:
> > --- ffmpeg/libavcodec/Makefile        2006-05-18 01:39:28.000000000 +0800
> > +++ ffmpeg.new/libavcodec/Makefile    2006-05-18 20:09:10.000000000 +0800
> > @@ -351,7 +351,7 @@
> >  ifdef TARGET_BUILTIN_3DNOW
> >  i386/fft_3dn.o: CFLAGS+= -m3dnow
> >  ifeq ($(TARGET_ARCH_X86),yes)
> > -i386/fft_3dn2.o: CFLAGS+= -march=athlon
> > +i386/fft_3dn2.o: CFLAGS+= -march=athlon -mno-sse
>
> Huh? I really think the original athlons did not support sse, no
> -march=athlon can't include -msse, can it??
>

-mno-sse to exclude mmx2 code, like prefetcht1:-)

-- 
Zuxy
Beauty is truth,
While truth is beauty.
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