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authorStefan Liebler <stli@linux.vnet.ibm.com>2015-08-26 10:26:21 +0200
committerAndreas Krebbel <krebbel@linux.vnet.ibm.com>2015-08-26 10:26:21 +0200
commitb3a0c176d1185621c4dd2bb3a51ec961bdb29123 (patch)
treef8eebf88cc8fc83747864ac8c3d2bdc174db84f2 /string
parentd183b96ee6dc694e95f212c9272a178163351b19 (diff)
downloadglibc-b3a0c176d1185621c4dd2bb3a51ec961bdb29123.tar.gz
S390: Optimize stpncpy and wcpncpy.
This patch provides optimized versions of stpncpy and wcpncpy with the z13 vector instructions. ChangeLog: * sysdeps/s390/multiarch/stpncpy-c.c: New File. * sysdeps/s390/multiarch/stpncpy-vx.S: Likewise. * sysdeps/s390/multiarch/stpncpy.c: Likewise. * sysdeps/s390/multiarch/wcpncpy-c.c: Likewise. * sysdeps/s390/multiarch/wcpncpy-vx.S: Likewise. * sysdeps/s390/multiarch/wcpncpy.c: Likewise. * sysdeps/s390/multiarch/Makefile (sysdep_routines): Add stpncpy and wcpncpy functions. * sysdeps/s390/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list): Add ifunc test for stpncpy, wcpncpy. * wcsmbs/wcpncpy.c: Use WCPNCPY if defined. * string/test-stpncpy.c: Add wcpncpy support. * wcsmbs/test-wcpncpy.c: New File. * wcsmbs/Makefile (strop-tests): Add wcpncpy. * benchtests/bench-stpncpy.c: Add wcpncpy support. * benchtests/bench-wcpncpy.c: New File. * benchtests/Makefile (wcsmbs-bench): Add wcpncpy.
Diffstat (limited to 'string')
-rw-r--r--string/test-stpncpy.c41
1 files changed, 30 insertions, 11 deletions
diff --git a/string/test-stpncpy.c b/string/test-stpncpy.c
index 1adab34e57..8624bba119 100644
--- a/string/test-stpncpy.c
+++ b/string/test-stpncpy.c
@@ -19,18 +19,36 @@
#define STRNCPY_RESULT(dst, len, n) ((dst) + ((len) > (n) ? (n) : (len)))
#define TEST_MAIN
-#define TEST_NAME "stpncpy"
+#ifndef WIDE
+# define TEST_NAME "stpncpy"
+#else
+# define TEST_NAME "wcpncpy"
+#endif /* WIDE */
#include "test-string.h"
+#ifndef WIDE
+# define CHAR char
+# define SIMPLE_STPNCPY simple_stpncpy
+# define STUPID_STPNCPY stupid_stpncpy
+# define STPNCPY stpncpy
+# define STRNLEN strnlen
+#else
+# include <wchar.h>
+# define CHAR wchar_t
+# define SIMPLE_STPNCPY simple_wcpncpy
+# define STUPID_STPNCPY stupid_wcpncpy
+# define STPNCPY wcpncpy
+# define STRNLEN wcsnlen
+#endif /* WIDE */
-char *simple_stpncpy (char *, const char *, size_t);
-char *stupid_stpncpy (char *, const char *, size_t);
+CHAR *SIMPLE_STPNCPY (CHAR *, const CHAR *, size_t);
+CHAR *STUPID_STPNCPY (CHAR *, const CHAR *, size_t);
-IMPL (stupid_stpncpy, 0)
-IMPL (simple_stpncpy, 0)
-IMPL (stpncpy, 1)
+IMPL (STUPID_STPNCPY, 0)
+IMPL (SIMPLE_STPNCPY, 0)
+IMPL (STPNCPY, 1)
-char *
-simple_stpncpy (char *dst, const char *src, size_t n)
+CHAR *
+SIMPLE_STPNCPY (CHAR *dst, const CHAR *src, size_t n)
{
while (n--)
if ((*dst++ = *src++) == '\0')
@@ -44,10 +62,10 @@ simple_stpncpy (char *dst, const char *src, size_t n)
return dst;
}
-char *
-stupid_stpncpy (char *dst, const char *src, size_t n)
+CHAR *
+STUPID_STPNCPY (CHAR *dst, const CHAR *src, size_t n)
{
- size_t nc = strnlen (src, n);
+ size_t nc = STRNLEN (src, n);
size_t i;
for (i = 0; i < nc; ++i)
@@ -57,4 +75,5 @@ stupid_stpncpy (char *dst, const char *src, size_t n)
return dst + nc;
}
+#undef CHAR
#include "test-strncpy.c"