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Remove configure tests for SSE4 support.

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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.
This commit is contained in:
Joseph Myers 2015-10-06 20:47:40 +00:00
parent 5c34f1b5bb
commit 3b7aa5bf59
12 changed files with 23 additions and 101 deletions
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19
ChangeLog
View File

@ -1,5 +1,24 @@
2015-10-06 Joseph Myers <joseph@codesourcery.com>
* 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.
* scripts/rpm2dynsym.sh: Remove file.
2015-10-06 Florian Weimer <fweimer@redhat.com>

3
config.h.in
View File

@ -76,9 +76,6 @@
/* Define if _rtld_local structure should be forced into .sdata section. */
#undef HAVE_SDATA_SECTION
/* Define if gcc supports SSE4. */
#undef HAVE_SSE4_SUPPORT
/* Define if gcc supports AVX. */
#undef HAVE_AVX_SUPPORT

26
sysdeps/i386/configure vendored
View File

@ -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 :

9
sysdeps/i386/configure.ac
View File

@ -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],

6
sysdeps/i386/i686/multiarch/Makefile
View File

@ -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 \

5
sysdeps/i386/i686/multiarch/strcspn.S
View File

@ -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

5
sysdeps/i386/i686/multiarch/strspn.S
View File

@ -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"

26
sysdeps/x86_64/configure vendored
View File

@ -43,32 +43,6 @@ 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 AVX support" >&5
$as_echo_n "checking for AVX support... " >&6; }
if ${libc_cv_cc_avx+:} false; then :

9
sysdeps/x86_64/configure.ac
View File

@ -5,15 +5,6 @@ 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 -mavx works.
AC_CACHE_CHECK(for AVX support, libc_cv_cc_avx, [dnl
LIBC_TRY_CC_OPTION([-mavx], [libc_cv_cc_avx=yes], [libc_cv_cc_avx=no])

7
sysdeps/x86_64/multiarch/Makefile
View File

@ -17,15 +17,12 @@ sysdep_routines += strncat-c stpncpy-c strncpy-c strcmp-ssse3 \
strcpy-sse2-unaligned strncpy-sse2-unaligned \
stpcpy-sse2-unaligned stpncpy-sse2-unaligned \
strcat-sse2-unaligned strncat-sse2-unaligned \
strchr-sse2-no-bsf memcmp-ssse3 strstr-sse2-unaligned
ifeq (yes,$(config-cflags-sse4))
sysdep_routines += strcspn-c strpbrk-c strspn-c varshift
strchr-sse2-no-bsf memcmp-ssse3 strstr-sse2-unaligned \
strcspn-c strpbrk-c strspn-c varshift
CFLAGS-varshift.c += -msse4
CFLAGS-strcspn-c.c += -msse4
CFLAGS-strpbrk-c.c += -msse4
CFLAGS-strspn-c.c += -msse4
endif
ifeq (yes,$(config-cflags-avx2))
sysdep_routines += memset-avx2

4
sysdeps/x86_64/multiarch/strcspn.S
View File

@ -19,9 +19,6 @@
<http://www.gnu.org/licenses/>. */
#include <config.h>
#ifdef HAVE_SSE4_SUPPORT
#include <sysdep.h>
#include <init-arch.h>
@ -64,7 +61,6 @@ END(STRCSPN)
# define END(name) \
cfi_endproc; .size STRCSPN_SSE2, .-STRCSPN_SSE2
#endif
#endif /* HAVE_SSE4_SUPPORT */
#ifdef USE_AS_STRPBRK
#include "../strpbrk.S"

5
sysdeps/x86_64/multiarch/strspn.S
View File

@ -19,9 +19,6 @@
<http://www.gnu.org/licenses/>. */
#include <config.h>
#ifdef HAVE_SSE4_SUPPORT
#include <sysdep.h>
#include <init-arch.h>
@ -50,6 +47,4 @@ END(strspn)
cfi_endproc; .size __strspn_sse2, .-__strspn_sse2
#endif
#endif /* HAVE_SSE4_SUPPORT */
#include "../strspn.S"