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| author | Joseph Myers <joseph@codesourcery.com> | 2015-10-28 13:29:03 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2015-10-28 13:29:03 +0000 |
| commit | c871b9b096e107fe6220e18102f5fb8070b49819 (patch) | |
| tree | 19328f2044291fec53c6f0ab3d5d8f0f5ffb1386 /sysdeps/i386/configure.ac | |
| parent | 56583289b18a9680e06f6b8b26d05b51e4c39a42 (diff) | |
| download | glibc-c871b9b096e107fe6220e18102f5fb8070b49819.tar.gz glibc-c871b9b096e107fe6220e18102f5fb8070b49819.tar.xz glibc-c871b9b096e107fe6220e18102f5fb8070b49819.zip | |
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].
Diffstat (limited to 'sysdeps/i386/configure.ac')
| -rw-r--r-- | sysdeps/i386/configure.ac | 9 |
1 files changed, 0 insertions, 9 deletions
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 |