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| author | Cheng Li <lic121@chinatelecom.cn> | 2022-09-16 09:56:18 +0000 |
|---|---|---|
| committer | Ilya Maximets <i.maximets@ovn.org> | 2022-09-27 01:17:56 +0200 |
| commit | 62dab6a5223de1880ef0bb7563a26ef0166080f7 (patch) | |
| tree | e18cf789098fe6665be0b69ccf512e29974c6859 /m4 | |
| parent | 57b72c552ee5711ef245912b48a7e01c8d309a7f (diff) | |
| download | openvswitch-62dab6a5223de1880ef0bb7563a26ef0166080f7.tar.gz | |
m4: Test avx512 for x86 only.
'as' command of arm version may don't support option '--64', this
patch is to move the avx512 test into x86 branch to avoid this.
Fixes: 352b6c7116cd ("dpif-lookup: add avx512 gather implementation.")
Tested-by: Harry van Haaren <harry.van.haaren@intel.com>
Signed-off-by: Cheng Li <lic121@chinatelecom.cn>
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/openvswitch.m4 | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/m4/openvswitch.m4 b/m4/openvswitch.m4 index b5be5842e..14d9249b8 100644 --- a/m4/openvswitch.m4 +++ b/m4/openvswitch.m4 @@ -494,8 +494,8 @@ AC_DEFUN([OVS_CHECK_BINUTILS_AVX512], mkdir -p build-aux OBJFILE=build-aux/binutils_avx512_check.o GATHER_PARAMS='0x8(,%ymm1,1),%ymm0{%k2}' - echo "vpgatherqq $GATHER_PARAMS" | as --64 -o $OBJFILE - if ($CC -dumpmachine | grep x86_64) >/dev/null 2>&1; then + echo "vpgatherqq $GATHER_PARAMS" | as --64 -o $OBJFILE - if (objdump -d --no-show-raw-insn $OBJFILE | grep -q $GATHER_PARAMS) >/dev/null 2>&1; then ovs_cv_binutils_avx512_good=yes else @@ -504,11 +504,11 @@ AC_DEFUN([OVS_CHECK_BINUTILS_AVX512], dnl and causing zmm usage with buggy binutils versions. CFLAGS="$CFLAGS -mno-avx512f" fi + rm $OBJFILE else dnl non x86_64 architectures don't have avx512, so not affected ovs_cv_binutils_avx512_good=no fi]) - rm $OBJFILE if test "$ovs_cv_binutils_avx512_good" = yes; then AC_DEFINE([HAVE_LD_AVX512_GOOD], [1], [Define to 1 if binutils correctly supports AVX512.]) |