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authorStefan Liebler <stli@linux.vnet.ibm.com>2015-08-26 10:26:23 +0200
committerAndreas Krebbel <krebbel@linux.vnet.ibm.com>2015-08-26 10:26:23 +0200
commitcf150d45a97c6bb8410d6d3acf6e1560e8fe96cc (patch)
tree678f57e8e7da3268797cd6567617a27491e4d0fa /benchtests
parentcee82e70ccb7b2f054cd781b0a603ae244523e72 (diff)
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S390: Optimize strchr and wcschr.
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.
Diffstat (limited to 'benchtests')
-rw-r--r--benchtests/Makefile2
-rw-r--r--benchtests/bench-wcschr.c20
2 files changed, 21 insertions, 1 deletions
diff --git a/benchtests/Makefile b/benchtests/Makefile
index 0a857974d2..b931f60077 100644
--- a/benchtests/Makefile
+++ b/benchtests/Makefile
@@ -37,7 +37,7 @@ string-bench := bcopy bzero memccpy memchr memcmp memcpy memmem memmove \
 		strspn strstr strcpy_chk stpcpy_chk memrchr strsep strtok \
 		strcoll
 wcsmbs-bench := wcslen wcsnlen wcscpy wcpcpy wcsncpy wcpncpy wcscat wcsncat \
-		wcscmp wcsncmp
+		wcscmp wcsncmp wcschr
 string-bench-all := $(string-bench) ${wcsmbs-bench}
 
 # We have to generate locales
diff --git a/benchtests/bench-wcschr.c b/benchtests/bench-wcschr.c
new file mode 100644
index 0000000000..428772444f
--- /dev/null
+++ b/benchtests/bench-wcschr.c
@@ -0,0 +1,20 @@
+/* Measure wcschr 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-strchr.c"