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Add x86 conditionnal mov (CMOV) "detection" (based on the cpu passed by --cpu=xx)

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Sets HAVE_CMOV define so we can protect relevant code with #ifdef HAVE_CMOV

Originally committed as revision 6742 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Guillaume Poirier 2006-10-20 07:27:12 +00:00
parent a616db285a
commit e7768fc512
1 changed files with 14 additions and 1 deletions
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15
configure vendored
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@ -346,6 +346,7 @@ arch=`uname -m`
cpu="generic"
powerpc_perf="no"
mmx="default"
cmov="no"
armv5te="default"
iwmmxt="default"
altivec="default"
@ -1100,8 +1101,15 @@ if test $cpu != "generic"; then
TUNECPU=ppc970
POWERPCMODE="64bits"
;;
i[3456]86|pentium|pentiumpro|pentium-mmx|pentium[234]|pentium-m|prescott|k6|k6-[23]|athlon|athlon-tbird|athlon-4|athlon-[mx]p|winchip-c6|winchip2|c3|nocona|athlon64|k8|opteron|athlon-fx)
# targets that do NOT support conditional mov (cmov)
i[345]86|pentium|pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
add_cflags "-march=$cpu"
cmov="no"
;;
# targets that do support conditional mov (cmov)
i686|pentiumpro|pentium[234]|pentium-m|prescott|athlon|athlon-tbird|athlon-4|athlon-[mx]p|nocona|athlon64|k8|opteron|athlon-fx)
add_cflags "-march=$cpu"
cmov=yes
;;
sparc64)
add_cflags "-mcpu=v9"
@ -1550,6 +1558,7 @@ echo "inttypes.h $inttypes"
echo "broken inttypes.h $emu_fast_int"
if test $arch = "x86" -o $arch = "x86_64"; then
echo "MMX enabled $mmx"
echo "CMOV enabled $cmov"
fi
if test $arch = "armv4l"; then
echo "ARMv5TE enabled $armv5te"
@ -1732,6 +1741,10 @@ if test "$mmx" = "yes" ; then
echo "#define HAVE_MMX 1" >> $TMPH
echo "#define __CPU__ 586" >> $TMPH
fi
if test "$cmov" = "yes" ; then
echo "TARGET_CMOV=yes" >> config.mak
echo "#define HAVE_CMOV 1" >> $TMPH
fi
if test "$armv5te" = "yes" ; then
echo "TARGET_ARMV5TE=yes" >> config.mak
echo "#define HAVE_ARMV5TE 1" >> $TMPH