- ldver = run_command('ld', '-v').stdout().strip()
- if ldver.contains('2.30') and cc.has_argument('-mno-avx512f')
- machine_args += '-mno-avx512f'
- message('Binutils 2.30 detected, disabling AVX512 support as workaround for bug #97')
- endif
- if ldver.contains('2.31') and cc.has_argument('-mno-avx512f')
- machine_args += '-mno-avx512f'
- message('Binutils 2.31 detected, disabling AVX512 support as workaround for bug #249')
- endif
+ binutils_ok = run_command(binutils_avx512_check)
+ if binutils_ok.returncode() != 0 and cc.has_argument('-mno-avx512f')
+ machine_args += '-mno-avx512f'
+ warning('Binutils error with AVX512 assembly, disabling AVX512 support')
+ 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')
+ code = '''#include <immintrin.h>
+ void test(__m512i zmm){
+ __m256i ymm = _mm512_extracti64x4_epi64(zmm, 0);}'''
+ result = cc.compiles(code, args : '-mavx512f', name : 'AVX512 checking')
+ if result == false
+ machine_args += '-mno-avx512f'
+ warning('Broken _mm512_extracti64x4_epi64, disabling AVX512 support')
+ endif