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authorH.J. Lu <hjl.tools@gmail.com>2014-06-20 14:52:29 -0700
committerH.J. Lu <hjl.tools@gmail.com>2014-06-20 14:52:29 -0700
commitd92d8f8a42b5623e98a5f83775015a7907029884 (patch)
tree0cd169870b07044bd1a733af2419d67942f64cc1 /sysdeps/x86_64
parent257ce7127e2f64a6a959b146786cd43de0e42b5f (diff)
Add ifunc tests for x86_64 memset_chk and memset
This patch adds ifunc tests for x86_64 memset_chk and memset. It also defines HAS_AVX2 with AVX2_Usable since AVX2 may not be usable even if processor has AVX2. * sysdeps/x86_64/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list): Add tests for memset_chk and memset. * sysdeps/x86_64/multiarch/init-arch.h (HAS_AVX2): Defined with AVX2_Usable.
Diffstat (limited to 'sysdeps/x86_64')
-rw-r--r--sysdeps/x86_64/multiarch/ifunc-impl-list.c11
-rw-r--r--sysdeps/x86_64/multiarch/init-arch.h2
2 files changed, 12 insertions, 1 deletions
diff --git a/sysdeps/x86_64/multiarch/ifunc-impl-list.c b/sysdeps/x86_64/multiarch/ifunc-impl-list.c
index 6da9be1420..f1593c5ea1 100644
--- a/sysdeps/x86_64/multiarch/ifunc-impl-list.c
+++ b/sysdeps/x86_64/multiarch/ifunc-impl-list.c
@@ -61,6 +61,17 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
__memmove_ssse3)
IFUNC_IMPL_ADD (array, i, memmove, 1, __memmove_sse2))
+ /* Support sysdeps/x86_64/multiarch/memset_chk.S. */
+ IFUNC_IMPL (i, name, __memset_chk,
+ IFUNC_IMPL_ADD (array, i, __memset_chk, 1, __memset_chk_sse2)
+ IFUNC_IMPL_ADD (array, i, __memset_chk, HAS_AVX2,
+ __memset_chk_avx2))
+
+ /* Support sysdeps/x86_64/multiarch/memset.S. */
+ IFUNC_IMPL (i, name, memset,
+ IFUNC_IMPL_ADD (array, i, memset, 1, __memset_sse2)
+ IFUNC_IMPL_ADD (array, i, memset, HAS_AVX2, __memset_avx2))
+
/* Support sysdeps/x86_64/multiarch/stpncpy.S. */
IFUNC_IMPL (i, name, stpncpy,
IFUNC_IMPL_ADD (array, i, stpncpy, HAS_SSSE3,
diff --git a/sysdeps/x86_64/multiarch/init-arch.h b/sysdeps/x86_64/multiarch/init-arch.h
index e4d265da59..ef0abbd226 100644
--- a/sysdeps/x86_64/multiarch/init-arch.h
+++ b/sysdeps/x86_64/multiarch/init-arch.h
@@ -158,7 +158,6 @@ extern const struct cpu_features *__get_cpu_features (void)
# 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_RTM HAS_CPU_FEATURE (COMMON_CPUID_INDEX_7, ebx, bit_RTM)
-# define HAS_AVX2 HAS_CPU_FEATURE (COMMON_CPUID_INDEX_7, ebx, bit_AVX2)
# define index_Fast_Rep_String FEATURE_INDEX_1
# define index_Fast_Copy_Backward FEATURE_INDEX_1
@@ -179,6 +178,7 @@ extern const struct cpu_features *__get_cpu_features (void)
# define HAS_SLOW_BSF HAS_ARCH_FEATURE (Slow_BSF)
# define HAS_FAST_UNALIGNED_LOAD HAS_ARCH_FEATURE (Fast_Unaligned_Load)
# define HAS_AVX HAS_ARCH_FEATURE (AVX_Usable)
+# define HAS_AVX2 HAS_ARCH_FEATURE (AVX2_Usable)
# define HAS_FMA HAS_ARCH_FEATURE (FMA_Usable)
# define HAS_FMA4 HAS_ARCH_FEATURE (FMA4_Usable)