about summary refs log tree commit diff
path: root/sysdeps/x86_64/multiarch
diff options
context:
space:
mode:
authorH.J. Lu <hjl.tools@gmail.com>2012-10-02 05:05:17 -0700
committerH.J. Lu <hjl.tools@gmail.com>2012-10-02 05:05:17 -0700
commit0569936773c861c791f10bba5e2f4cac5fbb4e78 (patch)
treefa6478e2fd9f2b8bf1310b23a1c6518db6299f65 /sysdeps/x86_64/multiarch
parent40d4a87bb557e5667e8ad72351bbd4bce5e2c0bc (diff)
downloadglibc-0569936773c861c791f10bba5e2f4cac5fbb4e78.tar.gz
glibc-0569936773c861c791f10bba5e2f4cac5fbb4e78.tar.xz
glibc-0569936773c861c791f10bba5e2f4cac5fbb4e78.zip
Define HAS_FMA with bit_FMA_Usable
Diffstat (limited to 'sysdeps/x86_64/multiarch')
-rw-r--r--sysdeps/x86_64/multiarch/init-arch.c3
-rw-r--r--sysdeps/x86_64/multiarch/init-arch.h9
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__ */