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 | 19 +++++++++++++++----
1 file changed, 15 insertions(+), 4 deletions(-)
diff --git a/config/x86/meson.build b/config/x86/meson.build
index 8087b9ae91..265580a555 100644
--- a/config/x86/meson.build
+++ b/config/x86/meson.build
@@ -14,16 +14,27 @@ if is_linux or cc.get_id() == 'gcc'
endif
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_avx512_flags = ['-mavx512f', '-mavx512vl', '-mavx512dq', '-mavx512bw']
+cc_has_avx512 = false
+target_has_avx512 = false
+if binutils_ok and cc.has_multi_arguments(cc_avx512_flags)
+ # check if compiler is working with _mm512_extracti64x4_epi64
+ # Ref: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82887
code = '''#include <immintrin.h>
void test(__m512i zmm){
__m256i ymm = _mm512_extracti64x4_epi64(zmm, 0);}'''
- result = cc.compiles(code, args : '-mavx512f', name : 'AVX512 checking')
+ result = cc.compiles(code, args : cc_avx512_flags, name : 'AVX512
checking')
if result == false
machine_args += '-mno-avx512f'
warning('Broken _mm512_extracti64x4_epi64, disabling AVX512 support')
+ else
+ cc_has_avx512 = true
+ 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
