From c871b9b096e107fe6220e18102f5fb8070b49819 Mon Sep 17 00:00:00 2001 From: Joseph Myers Date: Wed, 28 Oct 2015 13:29:03 +0000 Subject: Remove -mavx2 configure tests. There are configure tests for the -mavx2 compiler option. AVX2 support was added in GCC 4.7, so these tests are now obsolete; this patch removes them. Tested for x86_64 and x86 (testsuite, and that installed stripped shared libraries are unchanged by the patch). * sysdeps/i386/configure.ac (libc_cv_cc_avx2): Remove configure test. * sysdeps/i386/configure: Regenerated. * sysdeps/x86_64/configure.ac (libc_cv_cc_avx2): Remove configure test. * sysdeps/x86_64/configure: Regenerated. * config.h.in (HAVE_AVX2_SUPPORT): Remove #undef. * sysdeps/x86_64/multiarch/Makefile (sysdep_routines): Add memset-avx2 unconditionally instead of conditionally on [$(config-cflags-avx2) = yes]. * sysdeps/x86_64/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list) [HAVE_AVX2_SUPPORT]: Make code unconditional. * sysdeps/x86_64/multiarch/memset.S [HAVE_AVX2_SUPPORT]: Likewise. * sysdeps/x86_64/multiarch/memset_chk.S [IS_IN (libc) && SHARED && HAVE_AVX2_SUPPORT]: Change conditional to [IS_IN (libc) && SHARED]. --- sysdeps/i386/configure.ac | 9 --------- 1 file changed, 9 deletions(-) (limited to 'sysdeps/i386/configure.ac') diff --git a/sysdeps/i386/configure.ac b/sysdeps/i386/configure.ac index 7f2e4ccd01..609f147089 100644 --- a/sysdeps/i386/configure.ac +++ b/sysdeps/i386/configure.ac @@ -49,15 +49,6 @@ 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 -- cgit 1.4.1