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| author | Stefan Liebler <stli@linux.vnet.ibm.com> | 2015-08-26 10:26:22 +0200 |
|---|---|---|
| committer | Andreas Krebbel <krebbel@linux.vnet.ibm.com> | 2015-08-26 10:26:22 +0200 |
| commit | 63724a6db60f98e91da474d11d83a19aa10fc54e (patch) | |
| tree | 50fc60c0309d220ced0d3ed9d32d6b853c11080d /sysdeps/s390/s390-64 | |
| parent | e1fe91180e4e29549f35f8ecd705b0bb4f208606 (diff) | |
| download | glibc-63724a6db60f98e91da474d11d83a19aa10fc54e.tar.gz glibc-63724a6db60f98e91da474d11d83a19aa10fc54e.tar.xz glibc-63724a6db60f98e91da474d11d83a19aa10fc54e.zip | |
S390: Optimize strcmp and wcscmp.
This patch provides optimized versions of strcmp and wcscmp with the z13 vector instructions. The architecture specific string.h had a typo, which leads to ommiting the inline version in this file if __USE_STRING_INLINES is defined. Tested this inline version by tweaking test-strcmp.c. ChangeLog: * sysdeps/s390/multiarch/strcmp-vx.S: New File. * sysdeps/s390/multiarch/strcmp.c: Likewise. * sysdeps/s390/multiarch/wcscmp-c.c: Likewise. * sysdeps/s390/multiarch/wcscmp-vx.S: Likewise. * sysdeps/s390/multiarch/wcscmp.c: Likewise. * sysdeps/s390/s390-32/multiarch/strcmp.c: Likewise. * sysdeps/s390/s390-64/multiarch/strcmp.c: Likewise. * sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strcmp and wcscmp functions. * sysdeps/s390/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list): Add ifunc test for strcmp, wcscmp. * string/strcmp.c (STRCMP): Define and use macro. * benchtests/bench-wcscmp.c: New File. * benchtests/Makefile (wcsmbs-bench): Add wcscmp. * sysdeps/s390/bits/string.h: Fix typo: _HAVE_STRING_ARCH_strcmp instead of _HAVE_STRING_ARCH_memchr.
Diffstat (limited to 'sysdeps/s390/s390-64')
| -rw-r--r-- | sysdeps/s390/s390-64/multiarch/strcmp.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/sysdeps/s390/s390-64/multiarch/strcmp.c b/sysdeps/s390/s390-64/multiarch/strcmp.c new file mode 100644 index 0000000000..1598bbc59a --- /dev/null +++ b/sysdeps/s390/s390-64/multiarch/strcmp.c @@ -0,0 +1,21 @@ +/* Multiple versions of strcmp. + 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/>. */ + +/* This wrapper-file is needed, because otherwise file + sysdeps/s390/s390-[32|64]/strcmp.S will be used. */ +#include <sysdeps/s390/multiarch/strcmp.c> |