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authorJoseph Myers <joseph@codesourcery.com>2015-10-06 20:47:40 +0000
committerJoseph Myers <joseph@codesourcery.com>2015-10-06 20:47:40 +0000
commit3b7aa5bf59c59adccc1c883840db59926bbfc6de (patch)
tree90114cc9fefa5c39990841197d427dfabe85baef /sysdeps/i386
parent5c34f1b5bb3df60c09dcfbbee3dc89c7657ff279 (diff)
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Remove configure tests for SSE4 support.
GCC added support for -msse4 in version 4.3. Thus the configure tests for it are obsolete, and this patch removes them. Tested for x86_64 and x86 (testsuite, and that installed stripped shared libraries are unchanged by this patch). * sysdeps/i386/configure.ac (libc_cv_cc_sse4): Remove configure test. * sysdeps/i386/configure: Regenerated. * sysdeps/i386/i686/multiarch/Makefile [$(config-cflags-sse4) = yes]: Make code unconditional. * sysdeps/i386/i686/multiarch/strcspn.S [HAVE_SSE4_SUPPORT]: Likewise. * sysdeps/i386/i686/multiarch/strspn.S [HAVE_SSE4_SUPPORT]: Likewise. * sysdeps/x86_64/configure.ac (libc_cv_cc_sse4): Remove configure test. * sysdeps/x86_64/configure: Regenerated. * sysdeps/x86_64/multiarch/Makefile [$(config-cflags-sse4) = yes]: Make code unconditional. * sysdeps/x86_64/multiarch/strcspn.S [HAVE_SSE4_SUPPORT]: Likewise. * sysdeps/x86_64/multiarch/strspn.S [HAVE_SSE4_SUPPORT]: Likewise. * config.h.in (HAVE_SSE4_SUPPORT): Remove #undef.
Diffstat (limited to 'sysdeps/i386')
-rw-r--r--sysdeps/i386/configure26
-rw-r--r--sysdeps/i386/configure.ac9
-rw-r--r--sysdeps/i386/i686/multiarch/Makefile6
-rw-r--r--sysdeps/i386/i686/multiarch/strcspn.S5
-rw-r--r--sysdeps/i386/i686/multiarch/strspn.S5
5 files changed, 2 insertions, 49 deletions
diff --git a/sysdeps/i386/configure b/sysdeps/i386/configure
index ab66c08160..8a7837ec46 100644
--- a/sysdeps/i386/configure
+++ b/sysdeps/i386/configure
@@ -92,32 +92,6 @@ fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for SSE4 support" >&5
-$as_echo_n "checking for SSE4 support... " >&6; }
-if ${libc_cv_cc_sse4+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- if { ac_try='${CC-cc} -msse4 -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_sse4=yes
-else
- libc_cv_cc_sse4=no
-fi
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_sse4" >&5
-$as_echo "$libc_cv_cc_sse4" >&6; }
-if test $libc_cv_cc_sse4 = yes; then
- $as_echo "#define HAVE_SSE4_SUPPORT 1" >>confdefs.h
-
-fi
-config_vars="$config_vars
-config-cflags-sse4 = $libc_cv_cc_sse4"
-
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for assembler -mtune=i686 support" >&5
$as_echo_n "checking for assembler -mtune=i686 support... " >&6; }
if ${libc_cv_as_i686+:} false; then :
diff --git a/sysdeps/i386/configure.ac b/sysdeps/i386/configure.ac
index a3f3067fb7..e7af05600f 100644
--- a/sysdeps/i386/configure.ac
+++ b/sysdeps/i386/configure.ac
@@ -34,15 +34,6 @@ AC_CHECK_HEADER([cpuid.h], ,
[AC_MSG_ERROR([gcc must provide the <cpuid.h> header])],
[/* No default includes. */])
-dnl Check if -msse4 works.
-AC_CACHE_CHECK(for SSE4 support, libc_cv_cc_sse4, [dnl
-LIBC_TRY_CC_OPTION([-msse4], [libc_cv_cc_sse4=yes], [libc_cv_cc_sse4=no])
-])
-if test $libc_cv_cc_sse4 = yes; then
- AC_DEFINE(HAVE_SSE4_SUPPORT)
-fi
-LIBC_CONFIG_VAR([config-cflags-sse4], [$libc_cv_cc_sse4])
-
dnl Check if -Wa,-mtune=i686 works.
AC_CACHE_CHECK(for assembler -mtune=i686 support, libc_cv_as_i686, [dnl
LIBC_TRY_CC_OPTION([-Wa,-mtune=i686],
diff --git a/sysdeps/i386/i686/multiarch/Makefile b/sysdeps/i386/i686/multiarch/Makefile
index 31bfd39bae..7ccd9c7b79 100644
--- a/sysdeps/i386/i686/multiarch/Makefile
+++ b/sysdeps/i386/i686/multiarch/Makefile
@@ -24,15 +24,13 @@ sysdep_routines += bzero-sse2 memset-sse2 memcpy-ssse3 mempcpy-ssse3 \
strncase_l-c strncase-c strncase_l-ssse3 \
strcasecmp_l-sse4 strncase_l-sse4 \
bcopy-sse2-unaligned memcpy-sse2-unaligned \
- mempcpy-sse2-unaligned memmove-sse2-unaligned
-ifeq (yes,$(config-cflags-sse4))
-sysdep_routines += strcspn-c strpbrk-c strspn-c
+ mempcpy-sse2-unaligned memmove-sse2-unaligned \
+ strcspn-c strpbrk-c strspn-c
CFLAGS-varshift.c += -msse4
CFLAGS-strcspn-c.c += -msse4
CFLAGS-strpbrk-c.c += -msse4
CFLAGS-strspn-c.c += -msse4
endif
-endif
ifeq ($(subdir),wcsmbs)
sysdep_routines += wcscmp-sse2 wcscmp-c wcslen-sse2 wcslen-c \
diff --git a/sysdeps/i386/i686/multiarch/strcspn.S b/sysdeps/i386/i686/multiarch/strcspn.S
index b669b9797a..985c66c6aa 100644
--- a/sysdeps/i386/i686/multiarch/strcspn.S
+++ b/sysdeps/i386/i686/multiarch/strcspn.S
@@ -19,9 +19,6 @@
<http://www.gnu.org/licenses/>. */
#include <config.h>
-
-#ifdef HAVE_SSE4_SUPPORT
-
#include <sysdep.h>
#include <init-arch.h>
@@ -71,8 +68,6 @@ END(STRCSPN)
.globl __GI_STRCSPN; __GI_STRCSPN = STRCSPN_IA32
#endif
-#endif /* HAVE_SSE4_SUPPORT */
-
#ifdef USE_AS_STRPBRK
#include "../../strpbrk.S"
#else
diff --git a/sysdeps/i386/i686/multiarch/strspn.S b/sysdeps/i386/i686/multiarch/strspn.S
index 4ba87be45b..5e48ea1350 100644
--- a/sysdeps/i386/i686/multiarch/strspn.S
+++ b/sysdeps/i386/i686/multiarch/strspn.S
@@ -19,9 +19,6 @@
<http://www.gnu.org/licenses/>. */
#include <config.h>
-
-#ifdef HAVE_SSE4_SUPPORT
-
#include <sysdep.h>
#include <init-arch.h>
@@ -56,6 +53,4 @@ __strspn_ia32: cfi_startproc; \
.globl __GI_strspn; __GI_strspn = __strspn_ia32
#endif
-#endif /* HAVE_SSE4_SUPPORT */
-
#include "../../strspn.S"