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simplify simd extension checking
Originally committed as revision 9351 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Måns Rullgård
parent
7d2bf29c88
commit
9eeed841ca
79
configure
vendored
79
configure
vendored
@ -637,6 +637,7 @@ ARCH_EXT_LIST='
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iwmmxt
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mmi
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mmx
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ssse3
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'
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HAVE_LIST="
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@ -673,7 +674,6 @@ HAVE_LIST="
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sdl
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sdl_video_size
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soundcard_h
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ssse3
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sys_poll_h
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sys_soundcard_h
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threads
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@ -691,6 +691,15 @@ CMDLINE_SELECT="
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# code dependency declarations
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# architecture extensions
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altivec_deps="powerpc"
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armv5te_deps="armv4l"
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armv6_deps="armv4l"
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iwmmxt_deps="armv4l"
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mmi_deps="mips"
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mmx_deps="x86"
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ssse3_deps="x86"
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# decoders / encoders
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dxa_decoder_deps="zlib"
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flashsv_decoder_deps="zlib"
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@ -806,16 +815,10 @@ asmalign_pot="unknown"
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arch=`uname -m`
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cpu="generic"
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powerpc_perf="no"
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mmx="default"
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cmov="no"
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fast_cmov="no"
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fast_unaligned="no"
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armv5te="default"
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armv6="default"
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iwmmxt="default"
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altivec="default"
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dcbzl="no"
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mmi="default"
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bigendian="no"
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# OS
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@ -1090,6 +1093,10 @@ case "$arch" in
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;;
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esac
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enable $arch
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enabled_any x86_32 x86_64 && enable x86
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enabled sparc64 && enable sparc
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# OS specific
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osextralibs="-lm"
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case $targetos in
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@ -1302,14 +1309,8 @@ if disabled gpl ; then
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die_gpl_disabled "The software scaler" swscaler
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fi
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# compute MMX state
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if test $mmx = "default"; then
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if test $arch = "x86_32" -o $arch = "x86_64"; then
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mmx="yes"
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else
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mmx="no"
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fi
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fi
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enable $ARCH_EXT_LIST
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check_deps $ARCH_EXT_LIST
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test -z "$need_memalign" && need_memalign="$mmx"
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@ -1329,15 +1330,6 @@ enabled needmdynamicnopic && add_cflags -mdynamic-no-pic
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disabled optimize || add_cflags -fomit-frame-pointer
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# Can only do AltiVec on PowerPC
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if test $altivec = "default"; then
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if test $arch = "powerpc"; then
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altivec="yes"
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else
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altivec="no"
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fi
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fi
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# Add processor-specific flags
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POWERPCMODE="32bits"
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if test $cpu != "generic"; then
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@ -1447,7 +1439,7 @@ if test "$?" != 0; then
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die "C compiler test failed."
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fi
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if test $arch = "x86_32" -o $arch = "x86_64"; then
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if enabled x86; then
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# check whether EBP is available on x86
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# As 'i' is stored on the stack, this program will crash
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# if the base pointer is used to access it because the
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@ -1468,7 +1460,7 @@ int main(){
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EOF
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# check whether binutils is new enough to compile SSSE3
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check_cc <<EOF && enable ssse3
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enabled ssse3 && check_cc <<EOF || disable ssse3
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int main(){
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asm volatile ("pabsw %xmm0, %xmm0");
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}
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@ -1491,20 +1483,16 @@ fi
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# check for SIMD availability
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# AltiVec flags: The FSF version of GCC differs from the Apple version
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if test $arch = "powerpc"; then
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if enabled altivec; then
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if enabled altivec; then
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if test -n "`$cc -v 2>&1 | grep version | grep Apple`"; then
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add_cflags "-faltivec"
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else
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add_cflags "-maltivec -mabi=altivec"
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fi
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fi
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fi
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check_header altivec.h
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# check if our compiler supports Motorola AltiVec C API
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if enabled altivec; then
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if enabled altivec_h; then
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inc_altivec_h="#include <altivec.h>"
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else
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@ -1521,41 +1509,24 @@ EOF
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fi
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# check armv5te instructions support
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if test $armv5te = "default" -a $arch = "armv4l"; then
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armv5te=no
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check_cc <<EOF && armv5te=yes
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enabled armv5te && check_cc <<EOF || disable armv5te
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int main(void) {
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__asm__ __volatile__ ("qadd r0, r0, r0");
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}
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EOF
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fi
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if test $armv6 = "default" -a $arch = "armv4l"; then
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check_cc <<EOF && armv6=yes || armv6=no
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enabled armv6 && check_cc <<EOF || disable armv6
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int main(void) {
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__asm__ __volatile__ ("sadd16 r0, r0, r0");
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}
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EOF
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fi
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# check iwmmxt support
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if test $iwmmxt = "default" -a $arch = "armv4l"; then
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iwmmxt=no
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check_cc <<EOF && iwmmxt=yes
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enabled iwmmxt && check_cc <<EOF || disable iwmmxt
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int main(void) {
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__asm__ __volatile__ ("wunpckelub wr6, wr4");
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}
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EOF
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fi
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# mmi only available on mips
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if test $mmi = "default"; then
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if test $arch = "mips"; then
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mmi="yes"
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else
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mmi="no"
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fi
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fi
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# check if our compiler supports mmi
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enabled mmi && check_cc <<EOF || mmi="no"
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@ -1965,12 +1936,6 @@ echo "SLIBPREF=$SLIBPREF" >> config.mak
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echo "SLIBSUF=\${BUILDSUF}$SLIBSUF" >> config.mak
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echo "EXESUF=\${BUILDSUF}$EXESUF" >> config.mak
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enable $arch
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# special cases
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enabled_any x86_32 x86_64 && enable x86
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enabled sparc64 && enable sparc
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case "$arch" in
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powerpc)
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if test "$POWERPCMODE" = "64bits"; then
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