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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
commite1fe91180e4e29549f35f8ecd705b0bb4f208606 (patch)
treee67c5c8c4e0a0c124aaaf692dea8da515f2a85b9 /string
parentd626a24f235dbd4c446b241211a9a264a1eedb9e (diff)
downloadglibc-e1fe91180e4e29549f35f8ecd705b0bb4f208606.tar.gz
S390: Optimize strncat wcsncat.
This patch provides optimized versions of strncat and wcsncat with the z13 vector instructions. ChangeLog: * sysdeps/s390/multiarch/strncat-c.c: New File. * sysdeps/s390/multiarch/strncat-vx.S: Likewise. * sysdeps/s390/multiarch/strncat.c: Likewise. * sysdeps/s390/multiarch/wcsncat-c.c: Likewise. * sysdeps/s390/multiarch/wcsncat-vx.S: Likewise. * sysdeps/s390/multiarch/wcsncat.c: Likewise. * sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strncat and wcsncat functions. * sysdeps/s390/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list): Add ifunc test for strncat, wcsncat. * wcsmbs/wcsncat.c (WCSNCAT): Define and use macro. * string/test-strncat.c: Add wcsncat support. * wcsmbs/test-wcsncat.c: New File. * wcsmbs/Makefile (strop-tests): Add wcsncat. * benchtests/bench-strncat.c: Add wcsncat support. * benchtests/bench-wcsncat.c: New File. * benchtests/Makefile (wcsmbs-bench): Add wcsncat.
Diffstat (limited to 'string')
-rw-r--r--string/test-strncat.c138
1 files changed, 86 insertions, 52 deletions
diff --git a/string/test-strncat.c b/string/test-strncat.c
index 366e6fccb5..3571568b93 100644
--- a/string/test-strncat.c
+++ b/string/test-strncat.c
@@ -1,4 +1,4 @@
-/* Test and measure strncat functions.
+/* Test strncat functions.
Copyright (C) 2011-2015 Free Software Foundation, Inc.
Contributed by Intel Corporation.
@@ -17,33 +17,64 @@
<http://www.gnu.org/licenses/>. */
#define TEST_MAIN
-#define TEST_NAME "strncat"
+#ifndef WIDE
+# define TEST_NAME "strncat"
+#else
+# define TEST_NAME "wcsncat"
+#endif /* WIDE */
#include "test-string.h"
-typedef char *(*proto_t) (char *, const char *, size_t);
-char *stupid_strncat (char *, const char *, size_t);
-char *simple_strncat (char *, const char *, size_t);
+#ifndef WIDE
+# define STRNCAT strncat
+# define CHAR char
+# define UCHAR unsigned char
+# define SIMPLE_STRNCAT simple_strncat
+# define STUPID_STRNCAT stupid_strncat
+# define STRLEN strlen
+# define MEMSET memset
+# define MEMCPY memcpy
+# define MEMCMP memcmp
+# define BIG_CHAR CHAR_MAX
+# define SMALL_CHAR 127
+#else
+# include <wchar.h>
+# define STRNCAT wcsncat
+# define CHAR wchar_t
+# define UCHAR wchar_t
+# define SIMPLE_STRNCAT simple_wcsncat
+# define STUPID_STRNCAT stupid_wcsncat
+# define STRLEN wcslen
+# define MEMSET wmemset
+# define MEMCPY wmemcpy
+# define MEMCMP wmemcmp
+# define BIG_CHAR WCHAR_MAX
+# define SMALL_CHAR 1273
+#endif /* WIDE */
-IMPL (stupid_strncat, 0)
-IMPL (strncat, 2)
+typedef CHAR *(*proto_t) (CHAR *, const CHAR *, size_t);
+CHAR *STUPID_STRNCAT (CHAR *, const CHAR *, size_t);
+CHAR *SIMPLE_STRNCAT (CHAR *, const CHAR *, size_t);
-char *
-stupid_strncat (char *dst, const char *src, size_t n)
+IMPL (STUPID_STRNCAT, 0)
+IMPL (STRNCAT, 2)
+
+CHAR *
+STUPID_STRNCAT (CHAR *dst, const CHAR *src, size_t n)
{
- char *ret = dst;
+ CHAR *ret = dst;
while (*dst++ != '\0');
--dst;
while (n--)
- if ( (*dst++ = *src++) == '\0')
+ if ((*dst++ = *src++) == '\0')
return ret;
*dst = '\0';
return ret;
}
static void
-do_one_test (impl_t *impl, char *dst, const char *src, size_t n)
+do_one_test (impl_t *impl, CHAR *dst, const CHAR *src, size_t n)
{
- size_t k = strlen (dst);
+ size_t k = STRLEN (dst);
if (CALL (impl, dst, src, n) != dst)
{
error (0, 0, "Wrong result in function %s %p != %p", impl->name,
@@ -52,10 +83,10 @@ do_one_test (impl_t *impl, char *dst, const char *src, size_t n)
return;
}
- size_t len = strlen (src);
- if (memcmp (dst + k, src, len + 1 > n ? n : len + 1) != 0)
+ size_t len = STRLEN (src);
+ if (MEMCMP (dst + k, src, len + 1 > n ? n : len + 1) != 0)
{
- error (0, 0, "Incorrect cancatination in function %s",
+ error (0, 0, "Incorrect concatenation in function %s",
impl->name);
ret = 1;
return;
@@ -74,20 +105,20 @@ do_test (size_t align1, size_t align2, size_t len1, size_t len2,
size_t n, int max_char)
{
size_t i;
- char *s1, *s2;
+ CHAR *s1, *s2;
align1 &= 7;
- if (align1 + len1 >= page_size)
+ if ((align1 + len1) * sizeof (CHAR) >= page_size)
return;
- if (align1 + n > page_size)
+ if ((align1 + n) * sizeof (CHAR) > page_size)
return;
align2 &= 7;
- if (align2 + len1 + len2 >= page_size)
+ if ((align2 + len1 + len2) * sizeof (CHAR) >= page_size)
return;
- if (align2 + len1 + n > page_size)
+ if ((align2 + len1 + n) * sizeof (CHAR) > page_size)
return;
- s1 = (char *) (buf1 + align1);
- s2 = (char *) (buf2 + align2);
+ s1 = (CHAR *) (buf1) + align1;
+ s2 = (CHAR *) (buf2) + align2;
for (i = 0; i < len1; ++i)
s1[i] = 32 + 23 * i % (max_char - 32);
@@ -107,9 +138,10 @@ static void
do_random_tests (void)
{
size_t i, j, n, align1, align2, len1, len2, N;
- unsigned char *p1 = buf1 + page_size - 512;
- unsigned char *p2 = buf2 + page_size - 512;
- unsigned char *res;
+ UCHAR *p1 = (UCHAR *) (buf1 + page_size) - 512;
+ UCHAR *p2 = (UCHAR *) (buf2 + page_size) - 512;
+ UCHAR *p3 = (UCHAR *) buf1;
+ UCHAR *res;
fprintf (stdout, "Number of iterations in random test = %zd\n",
ITERATIONS);
for (n = 0; n < ITERATIONS; n++)
@@ -148,26 +180,26 @@ do_random_tests (void)
p1[i] = 0;
else
{
- p1[i] = random () & 255;
+ p1[i] = random () & BIG_CHAR;
if (i >= align1 && i < len1 + align1 && !p1[i])
- p1[i] = (random () & 127) + 3;
+ p1[i] = (random () & SMALL_CHAR) + 3;
}
}
for (i = 0; i < len2; i++)
{
- buf1[i] = random () & 255;
- if (!buf1[i])
- buf1[i] = (random () & 127) + 3;
+ p3[i] = random () & BIG_CHAR;
+ if (!p3[i])
+ p3[i] = (random () & SMALL_CHAR) + 3;
}
- buf1[len2] = 0;
+ p3[len2] = 0;
FOR_EACH_IMPL (impl, 1)
{
- memset (p2 - 64, '\1', align2 + 64);
- memset (p2 + align2 + len2 + 1, '\1', 512 - align2 - len2 - 1);
- memcpy (p2 + align2, buf1, len2 + 1);
- res = (unsigned char *) CALL (impl, (char *) (p2 + align2),
- (char *) (p1 + align1), N);
+ MEMSET (p2 - 64, '\1', align2 + 64);
+ MEMSET (p2 + align2 + len2 + 1, '\1', 512 - align2 - len2 - 1);
+ MEMCPY (p2 + align2, p3, len2 + 1);
+ res = (UCHAR *) CALL (impl, (CHAR *) (p2 + align2),
+ (CHAR *) (p1 + align1), N);
if (res != p2 + align2)
{
error (0, 0, "Iteration %zd - wrong result in function %s "
@@ -187,7 +219,7 @@ do_random_tests (void)
break;
}
}
- if (memcmp (p2 + align2, buf1, len2))
+ if (MEMCMP (p2 + align2, p3, len2))
{
error (0, 0, "Iteration %zd - garbage in string before, %s "
"(%zd, %zd, %zd, %zd, %zd)",
@@ -220,7 +252,7 @@ do_random_tests (void)
ret = 1;
}
}
- if (memcmp (p1 + align1, p2 + align2 + len2,
+ if (MEMCMP (p1 + align1, p2 + align2 + len2,
(len1 + 1) > N ? N : len1 + 1))
{
error (0, 0, "Iteration %zd - different strings, %s "
@@ -233,7 +265,7 @@ do_random_tests (void)
}
int
-main (void)
+test_main (void)
{
size_t i, n;
@@ -246,28 +278,30 @@ main (void)
for (n = 2; n <= 2048; n*=4)
{
- do_test (0, 2, 2, 2, n, 127);
- do_test (0, 0, 4, 4, n, 127);
- do_test (4, 0, 4, 4, n, 255);
- do_test (0, 0, 8, 8, n, 127);
- do_test (0, 8, 8, 8, n, 127);
+ do_test (0, 2, 2, 2, n, SMALL_CHAR);
+ do_test (0, 0, 4, 4, n, SMALL_CHAR);
+ do_test (4, 0, 4, 4, n, BIG_CHAR);
+ do_test (0, 0, 8, 8, n, SMALL_CHAR);
+ do_test (0, 8, 8, 8, n, SMALL_CHAR);
for (i = 1; i < 8; ++i)
{
- do_test (0, 0, 8 << i, 8 << i, n, 127);
- do_test (8 - i, 2 * i, 8 << i, 8 << i, n, 127);
- do_test (0, 0, 8 << i, 2 << i, n, 127);
- do_test (8 - i, 2 * i, 8 << i, 2 << i, n, 127);
+ do_test (0, 0, 8 << i, 8 << i, n, SMALL_CHAR);
+ do_test (8 - i, 2 * i, 8 << i, 8 << i, n, SMALL_CHAR);
+ do_test (0, 0, 8 << i, 2 << i, n, SMALL_CHAR);
+ do_test (8 - i, 2 * i, 8 << i, 2 << i, n, SMALL_CHAR);
}
for (i = 1; i < 8; ++i)
{
- do_test (i, 2 * i, 8 << i, 1, n, 127);
- do_test (2 * i, i, 8 << i, 1, n, 255);
- do_test (i, i, 8 << i, 10, n, 127);
+ do_test (i, 2 * i, 8 << i, 1, n, SMALL_CHAR);
+ do_test (2 * i, i, 8 << i, 1, n, BIG_CHAR);
+ do_test (i, i, 8 << i, 10, n, SMALL_CHAR);
}
}
do_random_tests ();
return ret;
}
+
+#include "../test-skeleton.c"