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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 /benchtests | |
| parent | fd484e057dd4d2813182df08584a4c48d6f1dd7a (diff) | |
| download | glibc-9472f35a0a6dbbda82ce103aaf0f5013f5d46e34.zip glibc-9472f35a0a6dbbda82ce103aaf0f5013f5d46e34.tar.gz glibc-9472f35a0a6dbbda82ce103aaf0f5013f5d46e34.tar.bz2 | |
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 'benchtests')
| -rw-r--r-- | benchtests/Makefile | 3 | ||||
| -rw-r--r-- | benchtests/bench-wcslen.c | 20 |
2 files changed, 22 insertions, 1 deletions
diff --git a/benchtests/Makefile b/benchtests/Makefile index 8e615e5..5d4afab 100644 --- a/benchtests/Makefile +++ b/benchtests/Makefile @@ -36,7 +36,8 @@ string-bench := bcopy bzero memccpy memchr memcmp memcpy memmem memmove \ strncasecmp strncat strncmp strncpy strnlen strpbrk strrchr \ strspn strstr strcpy_chk stpcpy_chk memrchr strsep strtok \ strcoll -string-bench-all := $(string-bench) +wcsmbs-bench := wcslen +string-bench-all := $(string-bench) ${wcsmbs-bench} # We have to generate locales LOCALES := en_US.UTF-8 tr_TR.UTF-8 cs_CZ.UTF-8 fa_IR.UTF-8 fr_FR.UTF-8 \ diff --git a/benchtests/bench-wcslen.c b/benchtests/bench-wcslen.c new file mode 100644 index 0000000..4e9d085 --- /dev/null +++ b/benchtests/bench-wcslen.c @@ -0,0 +1,20 @@ +/* Measure wcslen functions. + 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/>. */ + +#define WIDE 1 +#include "bench-strlen.c" |