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authorStefan Liebler <stli@linux.vnet.ibm.com>2015-08-26 10:26:24 +0200
committerAndreas Krebbel <krebbel@linux.vnet.ibm.com>2015-08-26 10:26:24 +0200
commitf1ffad98be7ec4111fbd1cd1f58f3e3343257519 (patch)
tree37bf3ccd97d9ff61a4cdfcfb1256b370175aa9a2 /string
parentf40132d4bda984479bac89dfcd6968e9ff56e088 (diff)
downloadglibc-f1ffad98be7ec4111fbd1cd1f58f3e3343257519.tar.gz
S390: Optimize strspn and wcsspn.
This patch provides optimized versions of strspn and wcsspn with the z13 vector instructions. ChangeLog: * sysdeps/s390/multiarch/strspn-c.c: New File. * sysdeps/s390/multiarch/strspn-vx.S: Likewise. * sysdeps/s390/multiarch/strspn.c: Likewise. * sysdeps/s390/multiarch/wcsspn-c.c: Likewise. * sysdeps/s390/multiarch/wcsspn-vx.S: Likewise. * sysdeps/s390/multiarch/wcsspn.c: Likewise. * wcsmbs/wcsspn.c: Use WCSSPN if defined. * sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strspn and wcsspn functions. * sysdeps/s390/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list): Add ifunc test for strspn, wcsspn. * string/test-strspn.c: Add wcsspn support. * wcsmbs/test-wcsspn.c: New File. * wcsmbs/Makefile (strop-tests): Add wcsspn. * benchtests/bench-strspn.c: Add wcsspn support. * benchtests/bench-wcsspn.c: New File. * benchtests/Makefile (wcsmbs-bench): Add wcsspn.
Diffstat (limited to 'string')
-rw-r--r--string/test-strspn.c99
1 files changed, 63 insertions, 36 deletions
diff --git a/string/test-strspn.c b/string/test-strspn.c
index 89fef8726c..7d76d3a256 100644
--- a/string/test-strspn.c
+++ b/string/test-strspn.c
@@ -18,22 +18,49 @@
<http://www.gnu.org/licenses/>. */
#define TEST_MAIN
-#define TEST_NAME "strspn"
+#ifndef WIDE
+# define TEST_NAME "strspn"
+#else
+# define TEST_NAME "wcsspn"
+#endif /* WIDE */
#include "test-string.h"
-typedef size_t (*proto_t) (const char *, const char *);
-size_t simple_strspn (const char *, const char *);
-size_t stupid_strspn (const char *, const char *);
-
-IMPL (stupid_strspn, 0)
-IMPL (simple_strspn, 0)
-IMPL (strspn, 1)
+#ifndef WIDE
+# define STRSPN strspn
+# define CHAR char
+# define UCHAR unsigned char
+# define SIMPLE_STRSPN simple_strspn
+# define STUPID_STRSPN stupid_strspn
+# define STRLEN strlen
+# define STRCHR strchr
+# define BIG_CHAR CHAR_MAX
+# define SMALL_CHAR 127
+#else
+# include <wchar.h>
+# define STRSPN wcsspn
+# define CHAR wchar_t
+# define UCHAR wchar_t
+# define SIMPLE_STRSPN simple_wcsspn
+# define STUPID_STRSPN stupid_wcsspn
+# define STRLEN wcslen
+# define STRCHR wcschr
+# define BIG_CHAR WCHAR_MAX
+# define SMALL_CHAR 1273
+#endif /* WIDE */
+
+typedef size_t (*proto_t) (const CHAR *, const CHAR *);
+size_t SIMPLE_STRSPN (const CHAR *, const CHAR *);
+size_t STUPID_STRSPN (const CHAR *, const CHAR *);
+
+IMPL (STUPID_STRSPN, 0)
+IMPL (SIMPLE_STRSPN, 0)
+IMPL (STRSPN, 1)
size_t
-simple_strspn (const char *s, const char *acc)
+SIMPLE_STRSPN (const CHAR *s, const CHAR *acc)
{
- const char *r, *str = s;
- char c;
+ const CHAR *r, *str = s;
+ CHAR c;
while ((c = *s++) != '\0')
{
@@ -47,9 +74,9 @@ simple_strspn (const char *s, const char *acc)
}
size_t
-stupid_strspn (const char *s, const char *acc)
+STUPID_STRSPN (const CHAR *s, const CHAR *acc)
{
- size_t ns = strlen (s), nacc = strlen (acc);
+ size_t ns = STRLEN (s), nacc = STRLEN (acc);
size_t i, j;
for (i = 0; i < ns; ++i)
@@ -64,7 +91,7 @@ stupid_strspn (const char *s, const char *acc)
}
static void
-do_one_test (impl_t *impl, const char *s, const char *acc, size_t exp_res)
+do_one_test (impl_t *impl, const CHAR *s, const CHAR *acc, size_t exp_res)
{
size_t res = CALL (impl, s, acc);
if (res != exp_res)
@@ -80,34 +107,34 @@ static void
do_test (size_t align, size_t pos, size_t len)
{
size_t i;
- char *acc, *s;
+ CHAR *acc, *s;
align &= 7;
- if (align + pos + 10 >= page_size || len > 240 || ! len)
+ if ((align + pos + 10) * sizeof (CHAR) >= page_size || len > 240 || ! len)
return;
- acc = (char *) (buf2 + (random () & 255));
- s = (char *) (buf1 + align);
+ acc = (CHAR *) (buf2) + (random () & 255);
+ s = (CHAR *) (buf1) + align;
for (i = 0; i < len; ++i)
{
- acc[i] = random () & 255;
+ acc[i] = random () & BIG_CHAR;
if (!acc[i])
- acc[i] = random () & 255;
+ acc[i] = random () & BIG_CHAR;
if (!acc[i])
- acc[i] = 1 + (random () & 127);
+ acc[i] = 1 + (random () & SMALL_CHAR);
}
acc[len] = '\0';
for (i = 0; i < pos; ++i)
s[i] = acc[random () % len];
- s[pos] = random () & 255;
- if (strchr (acc, s[pos]))
+ s[pos] = random () & BIG_CHAR;
+ if (STRCHR (acc, s[pos]))
s[pos] = '\0';
else
{
for (i = pos + 1; i < pos + 10; ++i)
- s[i] = random () & 255;
+ s[i] = random () & BIG_CHAR;
s[i] = '\0';
}
@@ -119,8 +146,8 @@ static void
do_random_tests (void)
{
size_t i, j, n, align, pos, alen, len;
- unsigned char *p = buf1 + page_size - 512;
- unsigned char *acc;
+ UCHAR *p = (UCHAR *) (buf1 + page_size) - 512;
+ UCHAR *acc;
for (n = 0; n < ITERATIONS; n++)
{
@@ -138,14 +165,14 @@ do_random_tests (void)
len = random () & 511;
if (len + align >= 512)
len = 511 - align - (random () & 7);
- acc = buf2 + page_size - alen - 1 - (random () & 7);
+ acc = (UCHAR *) (buf2 + page_size) - alen - 1 - (random () & 7);
for (i = 0; i < alen; ++i)
{
- acc[i] = random () & 255;
+ acc[i] = random () & BIG_CHAR;
if (!acc[i])
- acc[i] = random () & 255;
+ acc[i] = random () & BIG_CHAR;
if (!acc[i])
- acc[i] = 1 + (random () & 127);
+ acc[i] = 1 + (random () & SMALL_CHAR);
}
acc[i] = '\0';
j = (pos > len ? pos : len) + align + 64;
@@ -158,23 +185,23 @@ do_random_tests (void)
p[i] = '\0';
else if (i == pos + align)
{
- p[i] = random () & 255;
- if (strchr ((char *) acc, p[i]))
+ p[i] = random () & BIG_CHAR;
+ if (STRCHR ((CHAR *) acc, p[i]))
p[i] = '\0';
}
else if (i < align || i > pos + align)
- p[i] = random () & 255;
+ p[i] = random () & BIG_CHAR;
else
p[i] = acc [random () % alen];
}
FOR_EACH_IMPL (impl, 1)
- if (CALL (impl, (char *) (p + align),
- (char *) acc) != (pos < len ? pos : len))
+ if (CALL (impl, (CHAR *) (p + align),
+ (CHAR *) acc) != (pos < len ? pos : len))
{
error (0, 0, "Iteration %zd - wrong result in function %s (%zd, %p, %zd, %zd, %zd) %zd != %zd",
n, impl->name, align, acc, alen, pos, len,
- CALL (impl, (char *) (p + align), (char *) acc),
+ CALL (impl, (CHAR *) (p + align), (CHAR *) acc),
(pos < len ? pos : len));
ret = 1;
}