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authorStefan Liebler <stli@linux.vnet.ibm.com>2015-08-26 10:26:20 +0200
committerAndreas Krebbel <krebbel@linux.vnet.ibm.com>2015-08-26 10:26:20 +0200
commitfcf40ebe2682fd65d64f94d69a3df798960cf1b7 (patch)
tree45b1b3ea6b9a5105a81ca6d7fe351b79a9042eb6 /wcsmbs/wcsnlen.c
parent9472f35a0a6dbbda82ce103aaf0f5013f5d46e34 (diff)
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S390: Optimize strnlen and wcsnlen.
This patch provides optimized versions of strnlen and wcsnlen with the z13 vector instructions. ChangeLog: * sysdeps/s390/multiarch/strnlen-c.c: New File. * sysdeps/s390/multiarch/strnlen-vx.S: Likewise. * sysdeps/s390/multiarch/strnlen.c: Likewise. * sysdeps/s390/multiarch/wcsnlen-c.c: Likewise. * sysdeps/s390/multiarch/wcsnlen-vx.S: Likewise. * sysdeps/s390/multiarch/wcsnlen.c: Likewise. * sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strnlen and wcsnlen functions. * sysdeps/s390/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list): Add ifunc test for strnlen, wcsnlen. * wcsmbs/wcsnlen.c: Use WCSNLEN if defined. * string/test-strnlen.c: Add wcsnlen support. * wcsmbs/test-wcsnlen.c: New File. * wcsmbs/Makefile (strop-tests): Add wcsnlen. * benchtests/bench-strnlen.c: Add wcsnlen support. * benchtests/bench-wcsnlen.c: New File. * benchtests/Makefile (wcsmbs-bench): Add wcsnlen.
Diffstat (limited to 'wcsmbs/wcsnlen.c')
-rw-r--r--wcsmbs/wcsnlen.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/wcsmbs/wcsnlen.c b/wcsmbs/wcsnlen.c
index 2bee705..e928ab6 100644
--- a/wcsmbs/wcsnlen.c
+++ b/wcsmbs/wcsnlen.c
@@ -18,8 +18,11 @@
#include <wchar.h>
+#ifdef WCSNLEN
+# define __wcsnlen WCSNLEN
+#endif
-/* Copy SRC to DEST. */
+/* Return length of string S at most maxlen. */
size_t
__wcsnlen (s, maxlen)
const wchar_t *s;
@@ -44,4 +47,6 @@ __wcsnlen (s, maxlen)
return len;
}
+#ifndef WCSNLEN
weak_alias (__wcsnlen, wcsnlen)
+#endif