diff --git a/config.h.in b/config.h.in
index 5fd4897..b21ead1 100644
--- a/config.h.in
+++ b/config.h.in
@@ -88,9 +88,6 @@
/* Define if assembler supports Intel MPX. */
#undef HAVE_MPX_SUPPORT
-/* Define if gcc supports AVX2. */
-#undef HAVE_AVX2_SUPPORT
-
/* Define if the compiler\'s exception support is based on libunwind. */
#undef HAVE_CC_WITH_LIBUNWIND
diff --git a/sysdeps/i386/configure b/sysdeps/i386/configure
index 0abafe3..78e3973 100644
--- a/sysdeps/i386/configure
+++ b/sysdeps/i386/configure
@@ -141,32 +141,6 @@ if test $libc_cv_asm_mpx == yes; then
fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for AVX2 support" >&5
-$as_echo_n "checking for AVX2 support... " >&6; }
-if ${libc_cv_cc_avx2+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if { ac_try='${CC-cc} -mavx2 -xc /dev/null -S -o /dev/null'
- { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; }; }; then :
- libc_cv_cc_avx2=yes
-else
- libc_cv_cc_avx2=no
-fi
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_avx2" >&5
-$as_echo "$libc_cv_cc_avx2" >&6; }
-if test $libc_cv_cc_avx2 = yes; then
- $as_echo "#define HAVE_AVX2_SUPPORT 1" >>confdefs.h
-
-fi
-config_vars="$config_vars
-config-cflags-avx2 = $libc_cv_cc_avx2"
-
$as_echo "#define USE_REGPARMS 1" >>confdefs.h
diff --git a/sysdeps/i386/configure.ac b/sysdeps/i386/configure.ac
index 21b1c8f..0b1981f 100644
--- a/sysdeps/i386/configure.ac
+++ b/sysdeps/i386/configure.ac
@@ -57,15 +57,6 @@ if test $libc_cv_asm_mpx == yes; then
AC_DEFINE(HAVE_MPX_SUPPORT)
fi
-dnl Check if -mavx2 works.
-AC_CACHE_CHECK(for AVX2 support, libc_cv_cc_avx2, [dnl
-LIBC_TRY_CC_OPTION([-mavx2], [libc_cv_cc_avx2=yes], [libc_cv_cc_avx2=no])
-])
-if test $libc_cv_cc_avx2 = yes; then
- AC_DEFINE(HAVE_AVX2_SUPPORT)
-fi
-LIBC_CONFIG_VAR([config-cflags-avx2], [$libc_cv_cc_avx2])
-
AC_DEFINE(USE_REGPARMS)
dnl It is always possible to access static and hidden symbols in an
diff --git a/sysdeps/x86_64/configure b/sysdeps/x86_64/configure
index 8d4d8b8..15058e2 100644
--- a/sysdeps/x86_64/configure
+++ b/sysdeps/x86_64/configure
@@ -124,32 +124,6 @@ if test $libc_cv_asm_mpx == yes; then
fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for AVX2 support" >&5
-$as_echo_n "checking for AVX2 support... " >&6; }
-if ${libc_cv_cc_avx2+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if { ac_try='${CC-cc} -mavx2 -xc /dev/null -S -o /dev/null'
- { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; }; }; then :
- libc_cv_cc_avx2=yes
-else
- libc_cv_cc_avx2=no
-fi
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_avx2" >&5
-$as_echo "$libc_cv_cc_avx2" >&6; }
-if test $libc_cv_cc_avx2 = yes; then
- $as_echo "#define HAVE_AVX2_SUPPORT 1" >>confdefs.h
-
-fi
-config_vars="$config_vars
-config-cflags-avx2 = $libc_cv_cc_avx2"
-
if test x"$build_mathvec" = xnotset; then
build_mathvec=yes
fi
diff --git a/sysdeps/x86_64/configure.ac b/sysdeps/x86_64/configure.ac
index 14b9580..e2fe3da 100644
--- a/sysdeps/x86_64/configure.ac
+++ b/sysdeps/x86_64/configure.ac
@@ -45,15 +45,6 @@ if test $libc_cv_asm_mpx == yes; then
AC_DEFINE(HAVE_MPX_SUPPORT)
fi
-dnl Check if -mavx2 works.
-AC_CACHE_CHECK(for AVX2 support, libc_cv_cc_avx2, [dnl
-LIBC_TRY_CC_OPTION([-mavx2], [libc_cv_cc_avx2=yes], [libc_cv_cc_avx2=no])
-])
-if test $libc_cv_cc_avx2 = yes; then
- AC_DEFINE(HAVE_AVX2_SUPPORT)
-fi
-LIBC_CONFIG_VAR([config-cflags-avx2], [$libc_cv_cc_avx2])
-
if test x"$build_mathvec" = xnotset; then
build_mathvec=yes
fi
diff --git a/sysdeps/x86_64/multiarch/Makefile b/sysdeps/x86_64/multiarch/Makefile
index 396b0b3..bb811c2 100644
--- a/sysdeps/x86_64/multiarch/Makefile
+++ b/sysdeps/x86_64/multiarch/Makefile
@@ -18,15 +18,11 @@ sysdep_routines += strncat-c stpncpy-c strncpy-c strcmp-ssse3 \
stpcpy-sse2-unaligned stpncpy-sse2-unaligned \
strcat-sse2-unaligned strncat-sse2-unaligned \
strchr-sse2-no-bsf memcmp-ssse3 strstr-sse2-unaligned \
- strcspn-c strpbrk-c strspn-c varshift
+ strcspn-c strpbrk-c strspn-c varshift memset-avx2
CFLAGS-varshift.c += -msse4
CFLAGS-strcspn-c.c += -msse4
CFLAGS-strpbrk-c.c += -msse4
CFLAGS-strspn-c.c += -msse4
-
-ifeq (yes,$(config-cflags-avx2))
-sysdep_routines += memset-avx2
-endif
endif
ifeq ($(subdir),wcsmbs)
diff --git a/sysdeps/x86_64/multiarch/ifunc-impl-list.c b/sysdeps/x86_64/multiarch/ifunc-impl-list.c
index e5c517e..5c0c219 100644
--- a/sysdeps/x86_64/multiarch/ifunc-impl-list.c
+++ b/sysdeps/x86_64/multiarch/ifunc-impl-list.c
@@ -70,7 +70,6 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
__memmove_ssse3)
IFUNC_IMPL_ADD (array, i, memmove, 1, __memmove_sse2))
-#ifdef HAVE_AVX2_SUPPORT
/* Support sysdeps/x86_64/multiarch/memset_chk.S. */
IFUNC_IMPL (i, name, __memset_chk,
IFUNC_IMPL_ADD (array, i, __memset_chk, 1,
@@ -85,7 +84,6 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
IFUNC_IMPL_ADD (array, i, memset,
HAS_ARCH_FEATURE (AVX2_Usable),
__memset_avx2))
-#endif
/* Support sysdeps/x86_64/multiarch/stpncpy.S. */
IFUNC_IMPL (i, name, stpncpy,
diff --git a/sysdeps/x86_64/multiarch/memset.S b/sysdeps/x86_64/multiarch/memset.S
index 16fefa7..dbc00d2 100644
--- a/sysdeps/x86_64/multiarch/memset.S
+++ b/sysdeps/x86_64/multiarch/memset.S
@@ -17,13 +17,12 @@
License along with the GNU C Library; if not, see
. */
-#ifdef HAVE_AVX2_SUPPORT
#include
#include
#include
/* Define multiple versions only for the definition in lib. */
-# if IS_IN (libc)
+#if IS_IN (libc)
ENTRY(memset)
.type memset, @gnu_indirect_function
LOAD_RTLD_GLOBAL_RO_RDX
@@ -33,27 +32,26 @@ ENTRY(memset)
leaq __memset_avx2(%rip), %rax
2: ret
END(memset)
-# endif
+#endif
-# if IS_IN (libc)
-# undef memset
-# define memset __memset_sse2
+#if IS_IN (libc)
+# undef memset
+# define memset __memset_sse2
-# undef __memset_chk
-# define __memset_chk __memset_chk_sse2
+# undef __memset_chk
+# define __memset_chk __memset_chk_sse2
-# ifdef SHARED
-# undef libc_hidden_builtin_def
+# ifdef SHARED
+# undef libc_hidden_builtin_def
/* It doesn't make sense to send libc-internal memset calls through a PLT.
The speedup we get from using GPR instruction is likely eaten away
by the indirect call in the PLT. */
-# define libc_hidden_builtin_def(name) \
+# define libc_hidden_builtin_def(name) \
.globl __GI_memset; __GI_memset = __memset_sse2
-# endif
-
-# undef strong_alias
-# define strong_alias(original, alias)
# endif
+
+# undef strong_alias
+# define strong_alias(original, alias)
#endif
#include "../memset.S"
diff --git a/sysdeps/x86_64/multiarch/memset_chk.S b/sysdeps/x86_64/multiarch/memset_chk.S
index ef8c64f..e2abb15 100644
--- a/sysdeps/x86_64/multiarch/memset_chk.S
+++ b/sysdeps/x86_64/multiarch/memset_chk.S
@@ -22,7 +22,7 @@
/* Define multiple versions only for the definition in lib. */
#if IS_IN (libc)
-# if defined SHARED && defined HAVE_AVX2_SUPPORT
+# ifdef SHARED
ENTRY(__memset_chk)
.type __memset_chk, @gnu_indirect_function
LOAD_RTLD_GLOBAL_RO_RDX