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This patch provides optimized versions of stpcpy and wcpcpy with the z13 vector instructions. ChangeLog: * sysdeps/s390/multiarch/stpcpy-c.c: New File. * sysdeps/s390/multiarch/stpcpy-vx.S: Likewise. * sysdeps/s390/multiarch/stpcpy.c: Likewise. * sysdeps/s390/multiarch/wcpcpy-c.c: Likewise. * sysdeps/s390/multiarch/wcpcpy-vx.S: Likewise. * sysdeps/s390/multiarch/wcpcpy.c: Likewise. * sysdeps/s390/multiarch/Makefile (sysdep_routines): Add stpcpy and wcpcpy functions. * string/stpcpy.c: Use STPCPY if defined. * wcsmbs/wcpcpy.c: Use WCPCPY if defined. * sysdeps/s390/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list): Add ifunc test for stpcpy, wcpcpy. * string/test-stpcpy.c: Add wcpcpy support. * wcsmbs/test-wcpcpy.c: New File. * wcsmbs/Makefile (strop-tests): Add wcpcpy. * benchtests/bench-stpcpy.c: Add wcpcpy support. * benchtests/bench-wcpcpy.c: New File. * benchtests/Makefile (wcsmbs-bench): Add wcpcpy.
51 lines
1.3 KiB
C
51 lines
1.3 KiB
C
/* Copyright (C) 1996-2015 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1996.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <wchar.h>
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#define __need_ptrdiff_t
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#include <stddef.h>
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#ifdef WCPCPY
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# define __wcpcpy WCPCPY
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#endif
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/* Copy SRC to DEST, returning the address of the terminating L'\0' in
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DEST. */
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wchar_t *
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__wcpcpy (dest, src)
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wchar_t *dest;
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const wchar_t *src;
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{
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wchar_t *wcp = (wchar_t *) dest - 1;
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wint_t c;
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const ptrdiff_t off = src - dest + 1;
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do
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{
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c = wcp[off];
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*++wcp = c;
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}
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while (c != L'\0');
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return wcp;
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}
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#ifndef WCPCPY
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weak_alias (__wcpcpy, wcpcpy)
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#endif
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