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cf150d45a9
This patch provides optimized versions of strchr and wcschr with the z13 vector instructions. ChangeLog: * sysdeps/s390/multiarch/strchr-c.c: New File. * sysdeps/s390/multiarch/strchr-vx.S: Likewise. * sysdeps/s390/multiarch/strchr.c: Likewise. * sysdeps/s390/multiarch/wcschr-c.c: Likewise. * sysdeps/s390/multiarch/wcschr-vx.S: Likewise. * sysdeps/s390/multiarch/wcschr.c: Likewise. * sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strchr and wcschr functions. * sysdeps/s390/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list): Add ifunc test for strchr, wcschr. * string/strchr.c (STRCHR): Define and use macro. * benchtests/bench-wcschr.c: New File. * benchtests/Makefile (wcsmbs-bench): Add wcschr.
38 lines
1.4 KiB
C
38 lines
1.4 KiB
C
/* Default wcschr implementation for S/390.
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Copyright (C) 2015 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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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#if defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)
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# define WCSCHR __wcschr_c
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# include <wchar.h>
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extern __typeof (__wcschr) __wcschr_c;
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# undef weak_alias
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# define weak_alias(name, alias)
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# ifdef SHARED
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# undef libc_hidden_def
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# define libc_hidden_def(name) \
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__hidden_ver1 (__wcschr_c, __GI_wcschr, __wcschr_c); \
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strong_alias (__wcschr_c, __wcschr_c_1); \
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__hidden_ver1 (__wcschr_c_1, __GI___wcschr, __wcschr_c_1);
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# undef libc_hidden_weak
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# define libc_hidden_weak(name)
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# endif /* SHARED */
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# include <wcsmbs/wcschr.c>
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#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */
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