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| author | Stefan Liebler <stli@linux.vnet.ibm.com> | 2015-08-26 10:26:23 +0200 |
|---|---|---|
| committer | Andreas Krebbel <krebbel@linux.vnet.ibm.com> | 2015-08-26 10:26:23 +0200 |
| commit | cf150d45a97c6bb8410d6d3acf6e1560e8fe96cc (patch) | |
| tree | 678f57e8e7da3268797cd6567617a27491e4d0fa /sysdeps/s390/multiarch/strchr.c | |
| parent | cee82e70ccb7b2f054cd781b0a603ae244523e72 (diff) | |
| download | glibc-cf150d45a97c6bb8410d6d3acf6e1560e8fe96cc.zip glibc-cf150d45a97c6bb8410d6d3acf6e1560e8fe96cc.tar.gz glibc-cf150d45a97c6bb8410d6d3acf6e1560e8fe96cc.tar.bz2 | |
S390: Optimize strchr and wcschr.
This patch provides optimized versions of strchr and wcschr with the z13
vector instructions.
ChangeLog:
* sysdeps/s390/multiarch/strchr-c.c: New File.
* sysdeps/s390/multiarch/strchr-vx.S: Likewise.
* sysdeps/s390/multiarch/strchr.c: Likewise.
* sysdeps/s390/multiarch/wcschr-c.c: Likewise.
* sysdeps/s390/multiarch/wcschr-vx.S: Likewise.
* sysdeps/s390/multiarch/wcschr.c: Likewise.
* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strchr and
wcschr functions.
* sysdeps/s390/multiarch/ifunc-impl-list.c
(__libc_ifunc_impl_list): Add ifunc test for strchr, wcschr.
* string/strchr.c (STRCHR): Define and use macro.
* benchtests/bench-wcschr.c: New File.
* benchtests/Makefile (wcsmbs-bench): Add wcschr.
Diffstat (limited to 'sysdeps/s390/multiarch/strchr.c')
| -rw-r--r-- | sysdeps/s390/multiarch/strchr.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/sysdeps/s390/multiarch/strchr.c b/sysdeps/s390/multiarch/strchr.c new file mode 100644 index 0000000..40419b9 --- /dev/null +++ b/sysdeps/s390/multiarch/strchr.c @@ -0,0 +1,28 @@ +/* Multiple versions of strchr. + 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 <string.h> +# include <ifunc-resolve.h> + +s390_vx_libc_ifunc2 (__strchr, strchr) +weak_alias (strchr, index) + +#else +# include <string/strchr.c> +#endif /* !(defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)) */ |