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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 | |
| parent | 56583289b18a9680e06f6b8b26d05b51e4c39a42 (diff) | |
| download | glibc-c871b9b096e107fe6220e18102f5fb8070b49819.tar glibc-c871b9b096e107fe6220e18102f5fb8070b49819.tar.gz glibc-c871b9b096e107fe6220e18102f5fb8070b49819.tar.bz2 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')
| -rw-r--r-- | sysdeps/i386/configure | 26 | ||||
| -rw-r--r-- | sysdeps/i386/configure.ac | 9 |
2 files changed, 0 insertions, 35 deletions
diff --git a/sysdeps/i386/configure b/sysdeps/i386/configure index 1fc13aba6b..9ae13d6d69 100644 --- a/sysdeps/i386/configure +++ b/sysdeps/i386/configure @@ -119,32 +119,6 @@ if test $libc_cv_asm_mpx == yes; then fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for AVX2 support" >&5 -$as_echo_n "checking for AVX2 support... " >&6; } -if ${libc_cv_cc_avx2+:} false; then : - $as_echo_n "(cached) " >&6 -else - if { ac_try='${CC-cc} -mavx2 -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_avx2=yes -else - libc_cv_cc_avx2=no -fi - -fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_avx2" >&5 -$as_echo "$libc_cv_cc_avx2" >&6; } -if test $libc_cv_cc_avx2 = yes; then - $as_echo "#define HAVE_AVX2_SUPPORT 1" >>confdefs.h - -fi -config_vars="$config_vars -config-cflags-avx2 = $libc_cv_cc_avx2" - $as_echo "#define USE_REGPARMS 1" >>confdefs.h 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 |