From 3b7aa5bf59c59adccc1c883840db59926bbfc6de Mon Sep 17 00:00:00 2001 From: Joseph Myers Date: Tue, 6 Oct 2015 20:47:40 +0000 Subject: 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. --- sysdeps/x86_64/configure.ac | 9 --------- 1 file changed, 9 deletions(-) (limited to 'sysdeps/x86_64/configure.ac') 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 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]) -- cgit v1.2.3