diff options
Diffstat (limited to 'configure')
| -rwxr-xr-x | configure | 21 |
1 files changed, 21 insertions, 0 deletions
@@ -280,6 +280,7 @@ libusb="" usb_redir="" opengl="" opengl_dmabuf="no" +avx2_opt="no" zlib="yes" lzo="" snappy="" @@ -1773,6 +1774,21 @@ EOF fi ########################################## +# avx2 optimization requirement check + +cat > $TMPC << EOF +static void bar(void) {} +static void *bar_ifunc(void) {return (void*) bar;} +static void foo(void) __attribute__((ifunc("bar_ifunc"))); +int main(void) { foo(); return 0; } +EOF +if compile_prog "-mavx2" "" ; then + if readelf --syms $TMPE |grep "IFUNC.*foo" >/dev/null 2>&1; then + avx2_opt="yes" + fi +fi + +######################################### # zlib check if test "$zlib" != "no" ; then @@ -4790,6 +4806,7 @@ echo "bzip2 support $bzip2" echo "NUMA host support $numa" echo "tcmalloc support $tcmalloc" echo "jemalloc support $jemalloc" +echo "avx2 optimization $avx2_opt" if test "$sdl_too_old" = "yes"; then echo "-> Your SDL version is too old - please upgrade to have SDL support" @@ -5178,6 +5195,10 @@ if test "$opengl" = "yes" ; then fi fi +if test "$avx2_opt" = "yes" ; then + echo "CONFIG_AVX2_OPT=y" >> $config_host_mak +fi + if test "$lzo" = "yes" ; then echo "CONFIG_LZO=y" >> $config_host_mak fi |