Rather than having each driver do its own checking for AVX-512 support, let's do it once in config/x86/meson.build and let all drivers re-use that result.
Signed-off-by: Bruce Richardson <bruce.richard...@intel.com> --- config/x86/meson.build | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/config/x86/meson.build b/config/x86/meson.build index 8087b9ae91..f973878371 100644 --- a/config/x86/meson.build +++ b/config/x86/meson.build @@ -16,7 +16,8 @@ endif # check if compiler is working with _mm512_extracti64x4_epi64 # Ref: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82887 -if cc.has_argument('-mavx512f') +cc_has_avx512 = false +if binutils_ok and cc.has_argument('-mavx512f') code = '''#include <immintrin.h> void test(__m512i zmm){ __m256i ymm = _mm512_extracti64x4_epi64(zmm, 0);}''' @@ -24,6 +25,15 @@ if cc.has_argument('-mavx512f') if result == false machine_args += '-mno-avx512f' warning('Broken _mm512_extracti64x4_epi64, disabling AVX512 support') + else + cc_avx512_flags = ['-mavx512f', '-mavx512vl', '-mavx512dq', '-mavx512bw'] + cc_has_avx512 = cc.has_multi_arguments(cc_avx512_flags) + target_has_avx512 = ( + cc.get_define('__AVX512F__', args: machine_args) != '' and + cc.get_define('__AVX512BW__', args: machine_args) != '' and + cc.get_define('__AVX512DQ__', args: machine_args) != '' and + cc.get_define('__AVX512VL__', args: machine_args) != '' + ) endif endif -- 2.43.0
