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authorStefan Liebler <stli@linux.vnet.ibm.com>2015-08-26 10:26:25 +0200
committerAndreas Krebbel <krebbel@linux.vnet.ibm.com>2015-08-26 10:26:25 +0200
commitf21216015b7395c535abc01b9585a1ae3ceaa132 (patch)
tree94ac5b73f2e9b895c875e7916a2b664bb13a8197 /benchtests
parent2e9e166761fed5dfaa53480412bef0656f1b5306 (diff)
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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.
Diffstat (limited to 'benchtests')
-rw-r--r--benchtests/Makefile2
-rw-r--r--benchtests/bench-wmemcmp.c20
2 files changed, 21 insertions, 1 deletions
diff --git a/benchtests/Makefile b/benchtests/Makefile
index 28a517060b..dc2a5df1da 100644
--- a/benchtests/Makefile
+++ b/benchtests/Makefile
@@ -38,7 +38,7 @@ string-bench := bcopy bzero memccpy memchr memcmp memcpy memmem memmove \
 		strcoll
 wcsmbs-bench := wcslen wcsnlen wcscpy wcpcpy wcsncpy wcpncpy wcscat wcsncat \
 		wcscmp wcsncmp wcschr wcschrnul wcsrchr wcsspn wcspbrk wcscspn \
-		wmemchr wmemset
+		wmemchr wmemset wmemcmp
 string-bench-all := $(string-bench) ${wcsmbs-bench}
 
 # We have to generate locales
diff --git a/benchtests/bench-wmemcmp.c b/benchtests/bench-wmemcmp.c
new file mode 100644
index 0000000000..8b33f89f88
--- /dev/null
+++ b/benchtests/bench-wmemcmp.c
@@ -0,0 +1,20 @@
+/* Measure wmemcmp 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 "bench-memcmp.c"