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fix compilation of 3dnowext instinsincs, both on ia32 and AMD64.

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3dnow intrinsincs are for now only compiled if 3dnowext support is available. (I should add smth that
checks for plain 3dnow later)

Originally committed as revision 5386 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Guillaume Poirier
2006-05-16 14:24:45 +00:00
parent b997b34fa7
commit c2f69579bb
2 changed files with 13 additions and 2 deletions
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8
configure vendored
View File

@@ -1114,13 +1114,19 @@ fi
cat > $TMPC << EOF
#include <mm3dnow.h>
int main(void) {
__m64 b1;
b1 = _m_pswapd(b1);
_m_femms();
return 0;
}
EOF
mm3dnow=no
if $cc -m3dnow -o $TMPO $TMPC 2> /dev/null ; then
march=athlon
if test "$cpu" = "x86_64"; then
march=k8
fi
if $cc -march=$march -o $TMPO $TMPC 2> /dev/null ; then
mm3dnow=yes
fi

7
libavcodec/Makefile
View File

@@ -350,7 +350,12 @@ depend: CFLAGS+= -msse
endif
ifdef TARGET_BUILTIN_3DNOW
i386/fft_3dn.o: CFLAGS+= -m3dnow
i386/fft_3dn2.o: CFLAGS+= -m3dnow
ifeq ($(TARGET_ARCH_X86),yes)
i386/fft_3dn2.o: CFLAGS+= -march=athlon
endif
ifeq ($(TARGET_ARCH_X86_64),yes)
i386/fft_3dn2.o: CFLAGS+= -march=k8
endif
endif
endif