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| author | Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com> | 2017-04-13 11:29:20 +0530 |
|---|---|---|
| committer | Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com> | 2017-04-13 11:29:20 +0530 |
| commit | 249dcdb71b79e4c488a46c9027e0014c0bc27044 (patch) | |
| tree | a14c36ab652bb3d0bf47cac89205b57ae99793c9 /sysdeps/powerpc/powerpc64/multiarch/strncat-power8.c | |
| parent | 158d5fa0e1906e7810bdc6ecb7bf598dcc3cd17d (diff) | |
| download | glibc-249dcdb71b79e4c488a46c9027e0014c0bc27044.tar glibc-249dcdb71b79e4c488a46c9027e0014c0bc27044.tar.gz glibc-249dcdb71b79e4c488a46c9027e0014c0bc27044.tar.bz2 glibc-249dcdb71b79e4c488a46c9027e0014c0bc27044.zip | |
powerpc: Optimized strncat for POWER8
With new optimized strnlen for POWER8 [1], this patch adds
strncat for power8 to make use of optimized strlen and strnlen.
This is faster than POWER7 current implementation for larger strings.
Tested on powerpc64 and powerpc64le.
[1] https://sourceware.org/ml/libc-alpha/2017-03/msg00491.html
* sysdeps/powerpc/powerpc64/multiarch/Makefile (sysdep_routines): Add
strncat-power8.
* sysdeps/powerpc/powerpc64/multiarch/strncat.c (strncat): Add
__strncat_power8 to ifunc list.
* sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c
(strncat): Add __strncat_power8 to list of strncat functions.
* sysdeps/powerpc/powerpc64/multiarch/strncat-power8.c: New file.
Diffstat (limited to 'sysdeps/powerpc/powerpc64/multiarch/strncat-power8.c')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/multiarch/strncat-power8.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strncat-power8.c b/sysdeps/powerpc/powerpc64/multiarch/strncat-power8.c new file mode 100644 index 0000000000..1ec1259b95 --- /dev/null +++ b/sysdeps/powerpc/powerpc64/multiarch/strncat-power8.c @@ -0,0 +1,31 @@ +/* Copyright (C) 2017 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/ >. */ + +#include <string.h> + +#define STRNCAT __strncat_power8 + +extern __typeof (strncat) __strncat_power8 attribute_hidden; +extern __typeof (strlen) __strlen_power8 attribute_hidden; +extern __typeof (strnlen) __strnlen_power8 attribute_hidden; +extern __typeof (memcpy) __memcpy_power7 attribute_hidden; + +#define strlen __strlen_power8 +#define __strnlen __strnlen_power8 +#define memcpy __memcpy_power7 + +#include <string/strncat.c> |