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authorStefan Liebler <stli@linux.vnet.ibm.com>2015-08-26 10:26:21 +0200
committerAndreas Krebbel <krebbel@linux.vnet.ibm.com>2015-08-26 10:26:21 +0200
commitd183b96ee6dc694e95f212c9272a178163351b19 (patch)
tree2e18608e48780f04987a3f3f58c3f997c4f5cc60 /wcsmbs
parent8ade3db78db17e0112648d302f98eda115949cd5 (diff)
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S390: Optimize strncpy and wcsncpy.
This patch provides optimized versions of strncpy and wcsncpy with the z13 vector instructions. ChangeLog: * sysdeps/s390/multiarch/strncpy-vx.S: New File. * sysdeps/s390/multiarch/strncpy.c: Likewise. * sysdeps/s390/multiarch/wcsncpy-c.c: Likewise. * sysdeps/s390/multiarch/wcsncpy-vx.S: Likewise. * sysdeps/s390/multiarch/wcsncpy.c: Likewise. * sysdeps/s390/s390-32/multiarch/strncpy.c: Likewise. * sysdeps/s390/s390-64/multiarch/strncpy.c: Likewise. * sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strncpy and wcsncpy functions. * wcsmbs/wcsncpy.c: Use WCSNCPY if defined. * sysdeps/s390/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list): Add ifunc test for strncpy, wcsncpy. * string/test-strncpy.c: Add wcsncpy support. * wcsmbs/test-wcsncpy.c: New File. * wcsmbs/Makefile (strop-tests): Add wcsncpy. * benchtests/bench-strncpy.c: Add wcsncpy support. * benchtests/bench-wcsncpy.c: New File. * benchtests/Makefile (wcsmbs-bench): Add wcsncpy
Diffstat (limited to 'wcsmbs')
-rw-r--r--wcsmbs/Makefile2
-rw-r--r--wcsmbs/test-wcsncpy.c20
-rw-r--r--wcsmbs/wcsncpy.c5
3 files changed, 26 insertions, 1 deletions
diff --git a/wcsmbs/Makefile b/wcsmbs/Makefile
index 1112e05..426eab0 100644
--- a/wcsmbs/Makefile
+++ b/wcsmbs/Makefile
@@ -43,7 +43,7 @@ routines := wcscat wcschr wcscmp wcscpy wcscspn wcsdup wcslen wcsncat \
mbrtoc16 c16rtomb
strop-tests := wcscmp wcsncmp wmemcmp wcslen wcschr wcsrchr wcscpy wcsnlen \
- wcpcpy
+ wcpcpy wcsncpy
tests := tst-wcstof wcsmbs-tst1 tst-wcsnlen tst-btowc tst-mbrtowc \
tst-wcrtomb tst-wcpncpy tst-mbsrtowcs tst-wchar-h tst-mbrtowc2 \
tst-c16c32-1 wcsatcliff $(addprefix test-,$(strop-tests))
diff --git a/wcsmbs/test-wcsncpy.c b/wcsmbs/test-wcsncpy.c
new file mode 100644
index 0000000..27de6f8
--- /dev/null
+++ b/wcsmbs/test-wcsncpy.c
@@ -0,0 +1,20 @@
+/* Test wcsncpy functions.
+ 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
+ <http://www.gnu.org/licenses/>. */
+
+#define WIDE 1
+#include "../string/test-strncpy.c"
diff --git a/wcsmbs/wcsncpy.c b/wcsmbs/wcsncpy.c
index 7016f41..5ee5ee6 100644
--- a/wcsmbs/wcsncpy.c
+++ b/wcsmbs/wcsncpy.c
@@ -18,6 +18,9 @@
#include <wchar.h>
+#ifdef WCSNCPY
+# define __wcsncpy WCSNCPY
+#endif
/* Copy no more than N wide-characters of SRC to DEST. */
wchar_t *
@@ -83,4 +86,6 @@ __wcsncpy (dest, src, n)
return s;
}
+#ifndef WCSNCPY
weak_alias (__wcsncpy, wcsncpy)
+#endif