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| author | Adhemerval Zanella <azanella@linux.vnet.ibm.com> | 2014-12-23 13:39:23 -0500 |
|---|---|---|
| committer | Adhemerval Zanella <azanella@linux.vnet.ibm.com> | 2015-01-13 11:28:40 -0500 |
| commit | 9f2f36e5a91c2ce6edba5415e176155eb1008ae1 (patch) | |
| tree | f772f8f5005de041205a3f1ed0317ce5bf992fc6 /sysdeps/powerpc/powerpc64/multiarch/strncat-power7.S | |
| parent | 94c9680945369d63ef9ed266a29f28ebaaaeb5ce (diff) | |
| download | glibc-9f2f36e5a91c2ce6edba5415e176155eb1008ae1.tar.gz glibc-9f2f36e5a91c2ce6edba5415e176155eb1008ae1.tar.xz glibc-9f2f36e5a91c2ce6edba5415e176155eb1008ae1.zip | |
powerpc: Optimized strncat for POWER7/PPC64
With 3eb38795dbbbd816 (Simplify strncat) the generic algorithms uses strlen, strnlen, and memcpy. This is faster than POWER7 current implementation, especially for unaligned strings (where POWER7 code uses byte-byte operations). This patch removes the assembly implementation and uses a multiarch specialization based on default algorithm calling optimized POWER7 symbols.
Diffstat (limited to 'sysdeps/powerpc/powerpc64/multiarch/strncat-power7.S')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/multiarch/strncat-power7.S | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strncat-power7.S b/sysdeps/powerpc/powerpc64/multiarch/strncat-power7.S deleted file mode 100644 index 6216284d6f..0000000000 --- a/sysdeps/powerpc/powerpc64/multiarch/strncat-power7.S +++ /dev/null @@ -1,42 +0,0 @@ -/* Optimized strncat implementation for POWER7. - Copyright (C) 2014-2015 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/>. */ - -#include <sysdep.h> - -#undef EALIGN -#define EALIGN(name, alignt, words) \ - .section ".text"; \ - ENTRY_2(__strncat_power7) \ - .align ALIGNARG(alignt); \ - EALIGN_W_##words; \ - BODY_LABEL(__strncat_power7): \ - cfi_startproc; \ - LOCALENTRY(__strncat_power7) - -#undef END -#define END(name) \ - cfi_endproc; \ - TRACEBACK(__strncat_power7) \ - END_2(__strncat_power7) - -#undef libc_hidden_builtin_def -#define libc_hidden_builtin_def(name) - -#define STRLEN __strlen_power7 - -#include <sysdeps/powerpc/powerpc64/power7/strncat.S> |