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| author | Joseph Myers <joseph@codesourcery.com> | 2015-10-06 20:47:40 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2015-10-06 20:47:40 +0000 |
| commit | 3b7aa5bf59c59adccc1c883840db59926bbfc6de (patch) | |
| tree | 90114cc9fefa5c39990841197d427dfabe85baef /sysdeps/x86_64/configure.ac | |
| parent | 5c34f1b5bb3df60c09dcfbbee3dc89c7657ff279 (diff) | |
| download | glibc-3b7aa5bf59c59adccc1c883840db59926bbfc6de.tar.gz glibc-3b7aa5bf59c59adccc1c883840db59926bbfc6de.tar.xz glibc-3b7aa5bf59c59adccc1c883840db59926bbfc6de.zip | |
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/x86_64/configure.ac')
| -rw-r--r-- | sysdeps/x86_64/configure.ac | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/sysdeps/x86_64/configure.ac b/sysdeps/x86_64/configure.ac index e7208c9b30..68824f7efe 100644 --- a/sysdeps/x86_64/configure.ac +++ b/sysdeps/x86_64/configure.ac @@ -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]) |