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authorStefan Liebler <stli@linux.vnet.ibm.com>2015-08-26 10:26:22 +0200
committerAndreas Krebbel <krebbel@linux.vnet.ibm.com>2015-08-26 10:26:22 +0200
commitcee82e70ccb7b2f054cd781b0a603ae244523e72 (patch)
tree99b03fb1acbfa34500da9dccfe80af0a9f33e022 /wcsmbs
parent63724a6db60f98e91da474d11d83a19aa10fc54e (diff)
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S390: Optimize strncmp and wcsncmp.
This patch provides optimized versions of strncmp and wcsncmp with the z13
vector instructions.

ChangeLog:

	* sysdeps/s390/multiarch/strncmp-c.c: New File.
	* sysdeps/s390/multiarch/strncmp-vx.S: Likewise.
	* sysdeps/s390/multiarch/strncmp.c: Likewise.
	* sysdeps/s390/multiarch/wcsncmp-c.c: Likewise.
	* sysdeps/s390/multiarch/wcsncmp-vx.S: Likewise.
	* sysdeps/s390/multiarch/wcsncmp.c: Likewise.
	* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strncmp and
	wcsncmp functions.
	* sysdeps/s390/multiarch/ifunc-impl-list.c
	(__libc_ifunc_impl_list): Add ifunc test for strncmp, wcsncmp.
	* wcsmbs/wcsncmp.c (WCSNCMP): Define and use macro.
	* benchtests/bench-strncmp.c: Add wcsncmp support.
	* benchtests/bench-wcsncmp.c: New File.
	* benchtests/Makefile (wcsmbs-bench): Add wcsncmp.
Diffstat (limited to 'wcsmbs')
-rw-r--r--wcsmbs/wcsncmp.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/wcsmbs/wcsncmp.c b/wcsmbs/wcsncmp.c
index e083ad8174..4de2ca8c0a 100644
--- a/wcsmbs/wcsncmp.c
+++ b/wcsmbs/wcsncmp.c
@@ -18,13 +18,16 @@
 
 #include <wchar.h>
 
+#ifndef WCSNCMP
+# define WCSNCMP wcsncmp
+#endif
 
 /* Compare no more than N characters of S1 and S2,
    returning less than, equal to or greater than zero
    if S1 is lexicographically less than, equal to or
    greater than S2.  */
 int
-wcsncmp (s1, s2, n)
+WCSNCMP (s1, s2, n)
      const wchar_t *s1;
      const wchar_t *s2;
      size_t n;