diff --git a/configure b/configure index eb49bb6680..1a8268303b 100755 --- a/configure +++ b/configure @@ -1421,6 +1421,11 @@ for opt do ;; --enable-avx2) avx2_opt="yes" ;; + --disable-avx512f) avx512f_opt="no" + ;; + --enable-avx512f) avx512f_opt="yes" + ;; + --enable-glusterfs) glusterfs="yes" ;; --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane) @@ -1857,6 +1862,7 @@ disabled with --disable-FEATURE, default is enabled if available: tcmalloc tcmalloc support jemalloc jemalloc support avx2 AVX2 optimization support + avx512f AVX512F optimization support replication replication support opengl opengl support virglrenderer virgl rendering support @@ -5574,6 +5580,36 @@ EOF fi fi +########################################## +# avx512f optimization requirement check +# +# There is no point enabling this if cpuid.h is not usable, +# since we won't be able to select the new routines. +# by default, it is turned off. +# if user explicitly want to enable it, check environment + +if test "$cpuid_h" = "yes" && test "$avx512f_opt" = "yes"; then + cat > $TMPC << EOF +#pragma GCC push_options +#pragma GCC target("avx512f") +#include +#include +static int bar(void *a) { + __m512i x = *(__m512i *)a; + return _mm512_test_epi64_mask(x, x); +} +int main(int argc, char *argv[]) +{ + return bar(argv[0]); +} +EOF + if ! compile_object "" ; then + avx512f_opt="no" + fi +else + avx512f_opt="no" +fi + ######################################## # check if __[u]int128_t is usable. @@ -6717,6 +6753,7 @@ echo "libxml2 $libxml2" echo "tcmalloc support $tcmalloc" echo "jemalloc support $jemalloc" echo "avx2 optimization $avx2_opt" +echo "avx512f optimization $avx512f_opt" echo "replication support $replication" echo "VxHS block device $vxhs" echo "bochs support $bochs" @@ -7268,6 +7305,10 @@ if test "$avx2_opt" = "yes" ; then echo "CONFIG_AVX2_OPT=y" >> $config_host_mak fi +if test "$avx512f_opt" = "yes" ; then + echo "CONFIG_AVX512F_OPT=y" >> $config_host_mak +fi + if test "$lzo" = "yes" ; then echo "CONFIG_LZO=y" >> $config_host_mak fi