diff options
| 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/x86_64/multiarch/memset.S | |
| parent | 56583289b18a9680e06f6b8b26d05b51e4c39a42 (diff) | |
| download | glibc-c871b9b096e107fe6220e18102f5fb8070b49819.tar.gz | |
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/x86_64/multiarch/memset.S')
| -rw-r--r-- | sysdeps/x86_64/multiarch/memset.S | 28 |
1 files changed, 13 insertions, 15 deletions
diff --git a/sysdeps/x86_64/multiarch/memset.S b/sysdeps/x86_64/multiarch/memset.S index 16fefa7073..dbc00d25e3 100644 --- a/sysdeps/x86_64/multiarch/memset.S +++ b/sysdeps/x86_64/multiarch/memset.S @@ -17,13 +17,12 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ -#ifdef HAVE_AVX2_SUPPORT #include <sysdep.h> #include <shlib-compat.h> #include <init-arch.h> /* Define multiple versions only for the definition in lib. */ -# if IS_IN (libc) +#if IS_IN (libc) ENTRY(memset) .type memset, @gnu_indirect_function LOAD_RTLD_GLOBAL_RO_RDX @@ -33,27 +32,26 @@ ENTRY(memset) leaq __memset_avx2(%rip), %rax 2: ret END(memset) -# endif +#endif -# if IS_IN (libc) -# undef memset -# define memset __memset_sse2 +#if IS_IN (libc) +# undef memset +# define memset __memset_sse2 -# undef __memset_chk -# define __memset_chk __memset_chk_sse2 +# undef __memset_chk +# define __memset_chk __memset_chk_sse2 -# ifdef SHARED -# undef libc_hidden_builtin_def +# ifdef SHARED +# undef libc_hidden_builtin_def /* It doesn't make sense to send libc-internal memset calls through a PLT. The speedup we get from using GPR instruction is likely eaten away by the indirect call in the PLT. */ -# define libc_hidden_builtin_def(name) \ +# define libc_hidden_builtin_def(name) \ .globl __GI_memset; __GI_memset = __memset_sse2 -# endif - -# undef strong_alias -# define strong_alias(original, alias) # endif + +# undef strong_alias +# define strong_alias(original, alias) #endif #include "../memset.S" |