diff options
Diffstat (limited to 'libgcc')
| -rw-r--r-- | libgcc/ChangeLog | 6 | ||||
| -rw-r--r-- | libgcc/config/i386/cpuinfo.c | 6 | ||||
| -rw-r--r-- | libgcc/config/i386/cpuinfo.h | 3 |
3 files changed, 13 insertions, 2 deletions
diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog index 30e4da4..c3c7a16 100644 --- a/libgcc/ChangeLog +++ b/libgcc/ChangeLog @@ -1,3 +1,9 @@ +2019-05-07 Hongtao Liu <hongtao.liu@intel.com> + + * config/i386/cpuinfo.c (get_available_features): Detect BF16. + * config/i386/cpuinfo.h (enum processor_features): Add + FEATURE_AVX512BF16. + 2019-04-23 Ramana Radhakrishnan <ramana.radhakrishnan@arm.com> Bernd Edlinger <bernd.edlinger@hotmail.de> Jakub Jelinek <jakub@redhat.com> diff --git a/libgcc/config/i386/cpuinfo.c b/libgcc/config/i386/cpuinfo.c index d6cb2de..5659ec8 100644 --- a/libgcc/config/i386/cpuinfo.c +++ b/libgcc/config/i386/cpuinfo.c @@ -336,7 +336,7 @@ get_available_features (unsigned int ecx, unsigned int edx, set_feature (FEATURE_FMA); } - /* Get Advanced Features at level 7 (eax = 7, ecx = 0). */ + /* Get Advanced Features at level 7 (eax = 7, ecx = 0/1). */ if (max_cpuid_level >= 7) { __cpuid_count (7, 0, eax, ebx, ecx, edx); @@ -385,6 +385,10 @@ get_available_features (unsigned int ecx, unsigned int edx, set_feature (FEATURE_AVX5124VNNIW); if (edx & bit_AVX5124FMAPS) set_feature (FEATURE_AVX5124FMAPS); + + __cpuid_count (7, 1, eax, ebx, ecx, edx); + if (eax & bit_AVX512BF16) + set_feature (FEATURE_AVX512BF16); } } diff --git a/libgcc/config/i386/cpuinfo.h b/libgcc/config/i386/cpuinfo.h index b4492eb..68ca466 100644 --- a/libgcc/config/i386/cpuinfo.h +++ b/libgcc/config/i386/cpuinfo.h @@ -119,7 +119,8 @@ enum processor_features FEATURE_GFNI, FEATURE_VPCLMULQDQ, FEATURE_AVX512VNNI, - FEATURE_AVX512BITALG + FEATURE_AVX512BITALG, + FEATURE_AVX512BF16 }; extern struct __processor_model |