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| author | Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com> | 2016-12-01 11:35:43 +0530 |
|---|---|---|
| committer | Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com> | 2016-12-01 11:35:43 +0530 |
| commit | 80ab6401a9bb566de940cc6a5fb7a6af650f17b9 (patch) | |
| tree | c0fa2ad29f79c73d307241efca599a43834b71c1 /sysdeps/powerpc/powerpc64/multiarch/strcmp-power9.S | |
| parent | b2491db6c814d614acdef9d7a4e44a8c3b3ae9dc (diff) | |
| download | glibc-80ab6401a9bb566de940cc6a5fb7a6af650f17b9.zip glibc-80ab6401a9bb566de940cc6a5fb7a6af650f17b9.tar.gz glibc-80ab6401a9bb566de940cc6a5fb7a6af650f17b9.tar.bz2 | |
powerpc: strcmp optimization for power9
Vectorized loops are used for strings > 32B when compared
to power8 optimization.
Tested on power9 ppc64le simulator.
Diffstat (limited to 'sysdeps/powerpc/powerpc64/multiarch/strcmp-power9.S')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/multiarch/strcmp-power9.S | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strcmp-power9.S b/sysdeps/powerpc/powerpc64/multiarch/strcmp-power9.S new file mode 100644 index 0000000..0a09e5b --- /dev/null +++ b/sysdeps/powerpc/powerpc64/multiarch/strcmp-power9.S @@ -0,0 +1,40 @@ +/* Optimized strcmp implementation for POWER9/PPC64. + Copyright (C) 2016 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(__strcmp_power9) \ + .align ALIGNARG(alignt); \ + EALIGN_W_##words; \ + BODY_LABEL(__strcmp_power9): \ + cfi_startproc; \ + LOCALENTRY(__strcmp_power9) + +#undef END +#define END(name) \ + cfi_endproc; \ + TRACEBACK(__strcmp_power9) \ + END_2(__strcmp_power9) + +#undef libc_hidden_builtin_def +#define libc_hidden_builtin_def(name) + +#include <sysdeps/powerpc/powerpc64/power9/strcmp.S> |