diff options
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/x86_64/multiarch/init-arch.c | 3 | ||||
| -rw-r--r-- | sysdeps/x86_64/multiarch/init-arch.h | 9 |
2 files changed, 10 insertions, 2 deletions
diff --git a/sysdeps/x86_64/multiarch/init-arch.c b/sysdeps/x86_64/multiarch/init-arch.c index fb44dcfcf6..fed5ab8982 100644 --- a/sysdeps/x86_64/multiarch/init-arch.c +++ b/sysdeps/x86_64/multiarch/init-arch.c @@ -156,6 +156,9 @@ __init_cpu_features (void) /* Determine if AVX is usable. */ if (CPUID_AVX) __cpu_features.feature[index_AVX_Usable] |= bit_AVX_Usable; + /* Determine if FMA is usable. */ + if (CPUID_FMA) + __cpu_features.feature[index_FMA_Usable] |= bit_FMA_Usable; /* Determine if FMA4 is usable. */ if (CPUID_FMA4) __cpu_features.feature[index_FMA4_Usable] |= bit_FMA4_Usable; diff --git a/sysdeps/x86_64/multiarch/init-arch.h b/sysdeps/x86_64/multiarch/init-arch.h index 45e2651678..f33f1c81e5 100644 --- a/sysdeps/x86_64/multiarch/init-arch.h +++ b/sysdeps/x86_64/multiarch/init-arch.h @@ -22,7 +22,8 @@ #define bit_Fast_Unaligned_Load (1 << 4) #define bit_Prefer_PMINUB_for_stringop (1 << 5) #define bit_AVX_Usable (1 << 6) -#define bit_FMA4_Usable (1 << 7) +#define bit_FMA_Usable (1 << 7) +#define bit_FMA4_Usable (1 << 8) /* CPUID Feature flags. */ #define bit_SSE2 (1 << 26) @@ -56,6 +57,7 @@ # define index_Fast_Unaligned_Load FEATURE_INDEX_1*FEATURE_SIZE # define index_Prefer_PMINUB_for_stringop FEATURE_INDEX_1*FEATURE_SIZE # define index_AVX_Usable FEATURE_INDEX_1*FEATURE_SIZE +# define index_FMA_Usable FEATURE_INDEX_1*FEATURE_SIZE # define index_FMA4_Usable FEATURE_INDEX_1*FEATURE_SIZE #else /* __ASSEMBLER__ */ @@ -131,6 +133,8 @@ extern const struct cpu_features *__get_cpu_features (void) HAS_CPUID_FLAG (COMMON_CPUID_INDEX_1, ecx, bit_OSXSAVE) # define CPUID_AVX \ HAS_CPUID_FLAG (COMMON_CPUID_INDEX_1, ecx, bit_AVX) +# define CPUID_FMA \ + HAS_CPUID_FLAG (COMMON_CPUID_INDEX_1, ecx, bit_FMA) # define CPUID_FMA4 \ HAS_CPUID_FLAG (COMMON_CPUID_INDEX_80000001, ecx, bit_FMA4) @@ -140,7 +144,6 @@ extern const struct cpu_features *__get_cpu_features (void) # define HAS_SSSE3 HAS_CPU_FEATURE (COMMON_CPUID_INDEX_1, ecx, bit_SSSE3) # define HAS_SSE4_1 HAS_CPU_FEATURE (COMMON_CPUID_INDEX_1, ecx, bit_SSE4_1) # define HAS_SSE4_2 HAS_CPU_FEATURE (COMMON_CPUID_INDEX_1, ecx, bit_SSE4_2) -# define HAS_FMA HAS_CPU_FEATURE (COMMON_CPUID_INDEX_1, ecx, bit_FMA) # define index_Fast_Rep_String FEATURE_INDEX_1 # define index_Fast_Copy_Backward FEATURE_INDEX_1 @@ -148,6 +151,7 @@ extern const struct cpu_features *__get_cpu_features (void) # define index_Prefer_SSE_for_memop FEATURE_INDEX_1 # define index_Fast_Unaligned_Load FEATURE_INDEX_1 # define index_AVX_Usable FEATURE_INDEX_1 +# define index_FMA_Usable FEATURE_INDEX_1 # define index_FMA4_Usable FEATURE_INDEX_1 # define HAS_ARCH_FEATURE(name) \ @@ -159,6 +163,7 @@ extern const struct cpu_features *__get_cpu_features (void) # define HAS_PREFER_SSE_FOR_MEMOP HAS_ARCH_FEATURE (Prefer_SSE_for_memop) # define HAS_FAST_UNALIGNED_LOAD HAS_ARCH_FEATURE (Fast_Unaligned_Load) # define HAS_AVX HAS_ARCH_FEATURE (AVX_Usable) +# define HAS_FMA HAS_ARCH_FEATURE (FMA_Usable) # define HAS_FMA4 HAS_ARCH_FEATURE (FMA4_Usable) #endif /* __ASSEMBLER__ */ |