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| author | Stefan Liebler <stli@linux.vnet.ibm.com> | 2015-08-26 10:26:20 +0200 |
|---|---|---|
| committer | Andreas Krebbel <krebbel@linux.vnet.ibm.com> | 2015-08-26 10:26:20 +0200 |
| commit | 9472f35a0a6dbbda82ce103aaf0f5013f5d46e34 (patch) | |
| tree | f987642b36af4e740bbd7e80e218f526af5a230d /sysdeps/s390/multiarch/wcslen.c | |
| parent | fd484e057dd4d2813182df08584a4c48d6f1dd7a (diff) | |
| download | glibc-9472f35a0a6dbbda82ce103aaf0f5013f5d46e34.tar.gz glibc-9472f35a0a6dbbda82ce103aaf0f5013f5d46e34.tar.xz glibc-9472f35a0a6dbbda82ce103aaf0f5013f5d46e34.zip | |
S390: Optimize strlen and wcslen.
This patch provides optimized versions of strlen and wcslen with the z13 vector instructions. The helper macro IFUNC_VX_IMPL is introduced and is used to register all __<func>_c() and __<func>_vx() functions within __libc_ifunc_impl_list() to the ifunc test framework. ChangeLog: * sysdeps/s390/multiarch/Makefile: New File. * sysdeps/s390/multiarch/strlen-c.c: Likewise. * sysdeps/s390/multiarch/strlen-vx.S: Likewise. * sysdeps/s390/multiarch/strlen.c: Likewise. * sysdeps/s390/multiarch/wcslen-c.c: Likewise. * sysdeps/s390/multiarch/wcslen-vx.S: Likewise. * sysdeps/s390/multiarch/wcslen.c: Likewise. * string/strlen.c (STRLEN): Define and use macro. * sysdeps/s390/multiarch/ifunc-impl-list.c (IFUNC_VX_IMPL): New macro function. (__libc_ifunc_impl_list): Add ifunc test for strlen, wcslen. * benchtests/Makefile (wcsmbs-bench): New variable. (string-bench-all): Added wcsmbs-bench. * benchtests/bench-wcslen.c: New File.
Diffstat (limited to 'sysdeps/s390/multiarch/wcslen.c')
| -rw-r--r-- | sysdeps/s390/multiarch/wcslen.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/sysdeps/s390/multiarch/wcslen.c b/sysdeps/s390/multiarch/wcslen.c new file mode 100644 index 0000000000..750bd6b991 --- /dev/null +++ b/sysdeps/s390/multiarch/wcslen.c @@ -0,0 +1,28 @@ +/* Multiple versions of wcslen. + Copyright (C) 2015 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#if defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) +# include <wchar.h> +# include <ifunc-resolve.h> + +s390_vx_libc_ifunc (__wcslen) +weak_alias (__wcslen, wcslen) + +#else +# include <wcsmbs/wcslen.c> +#endif /* !(defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)) */ |