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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 e083ad8..4de2ca8 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;