From f21216015b7395c535abc01b9585a1ae3ceaa132 Mon Sep 17 00:00:00 2001 From: Stefan Liebler Date: Wed, 26 Aug 2015 10:26:25 +0200 Subject: S390: Optimize wmemcmp. This patch provides optimized version of wmemcmp with the z13 vector instructions. ChangeLog: * sysdeps/s390/multiarch/wmemcmp-c.c: New File. * sysdeps/s390/multiarch/wmemcmp-vx.S: Likewise. * sysdeps/s390/multiarch/wmemcmp.c: Likewise. * sysdeps/s390/multiarch/Makefile (sysdep_routines): Add wmemcmp functions. * sysdeps/s390/multiarch/ifunc-impl-list-common.c (__libc_ifunc_impl_list_common): Add ifunc test for wmemcmp. * benchtests/bench-wmemcmp.c: New File. * benchtests/Makefile (wcsmbs-bench): Add wmemcmp. --- sysdeps/s390/multiarch/wmemcmp-c.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 sysdeps/s390/multiarch/wmemcmp-c.c (limited to 'sysdeps/s390/multiarch/wmemcmp-c.c') diff --git a/sysdeps/s390/multiarch/wmemcmp-c.c b/sysdeps/s390/multiarch/wmemcmp-c.c new file mode 100644 index 0000000000..7ca9f46083 --- /dev/null +++ b/sysdeps/s390/multiarch/wmemcmp-c.c @@ -0,0 +1,26 @@ +/* Default wmemcmp implementation for S/390. + Copyright (C) 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 + . */ + +#if defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) +# define WMEMCMP __wmemcmp_c + +# include +extern __typeof (wmemcmp) __wmemcmp_c; + +# include +#endif -- cgit 1.4.1