Copy over string performance tests into benchtests

Copy over already existing string performance tests into benchtests.
Bits not related to performance measurements have been omitted.

61 files changed, 4991 insertions, 1 deletions

diff --git a/benchtests/Makefile b/benchtests/Makefile
index 27d83f4..5023c7c 100644
--- a/benchtests/Makefile
+++ b/benchtests/Makefile
@@ -24,7 +24,10 @@ bench := acos acosh asin asinh atan atanh cos cosh exp log modf pow rint sin \
 	 sinh tan tanh
 
 # String function benchmarks.
-string-bench := memcpy
+string-bench := bcopy bzero memccpy memchr memcmp memmem memmove mempcpy \
+		memset rawmemchr stpcpy stpncpy strcasecmp strcasestr strcat \
+		strchr strchrnul strcmp strcpy strcspn strlen strncasecmp \
+		strncat strncmp strncpy strnlen strpbrk strrchr strspn strstr
 string-bench-ifunc := $(addsuffix -ifunc, $(string-bench))
 string-bench-all := $(string-bench) $(string-bench-ifunc)
 
diff --git a/benchtests/bench-bcopy-ifunc.c b/benchtests/bench-bcopy-ifunc.c
new file mode 100644
index 0000000..66020e9
--- /dev/null
+++ b/benchtests/bench-bcopy-ifunc.c
@@ -0,0 +1,20 @@
+/* Measure IFUNC implementations of bcopy function.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_IFUNC 1
+#include "bench-bcopy.c"
diff --git a/benchtests/bench-bcopy.c b/benchtests/bench-bcopy.c
new file mode 100644
index 0000000..4d0d055
--- /dev/null
+++ b/benchtests/bench-bcopy.c
@@ -0,0 +1,20 @@
+/* Measure bcopy functions.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_BCOPY
+#include "bench-memmove.c"
diff --git a/benchtests/bench-bzero-ifunc.c b/benchtests/bench-bzero-ifunc.c
new file mode 100644
index 0000000..84f1354
--- /dev/null
+++ b/benchtests/bench-bzero-ifunc.c
@@ -0,0 +1,20 @@
+/* Measure IFUNC implementations of bzero function.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_IFUNC 1
+#include "bench-bzero.c"
diff --git a/benchtests/bench-bzero.c b/benchtests/bench-bzero.c
new file mode 100644
index 0000000..18e7d17
--- /dev/null
+++ b/benchtests/bench-bzero.c
@@ -0,0 +1,19 @@
+/* Measure bzero functions.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+#define TEST_BZERO
+#include "bench-memset.c"
diff --git a/benchtests/bench-memccpy-ifunc.c b/benchtests/bench-memccpy-ifunc.c
new file mode 100644
index 0000000..b61050f
--- /dev/null
+++ b/benchtests/bench-memccpy-ifunc.c
@@ -0,0 +1,20 @@
+/* Measure IFUNC implementations of memccpy function.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_IFUNC 1
+#include "bench-memccpy.c"
diff --git a/benchtests/bench-memccpy.c b/benchtests/bench-memccpy.c
new file mode 100644
index 0000000..612513c
--- /dev/null
+++ b/benchtests/bench-memccpy.c
@@ -0,0 +1,169 @@
+/* Measure memccpy functions.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_MAIN
+#define TEST_NAME "memccpy"
+#include "bench-string.h"
+
+void *simple_memccpy (void *, const void *, int, size_t);
+void *stupid_memccpy (void *, const void *, int, size_t);
+
+IMPL (stupid_memccpy, 0)
+IMPL (simple_memccpy, 0)
+IMPL (memccpy, 1)
+
+void *
+simple_memccpy (void *dst, const void *src, int c, size_t n)
+{
+  const char *s = src;
+  char *d = dst;
+
+  while (n-- > 0)
+    if ((*d++ = *s++) == (char) c)
+      return d;
+
+  return NULL;
+}
+
+void *
+stupid_memccpy (void *dst, const void *src, int c, size_t n)
+{
+  void *p = memchr (src, c, n);
+
+  if (p != NULL)
+    return mempcpy (dst, src, p - src + 1);
+
+  memcpy (dst, src, n);
+  return NULL;
+}
+
+typedef void *(*proto_t) (void *, const void *, int c, size_t);
+
+static void
+do_one_test (impl_t *impl, void *dst, const void *src, int c, size_t len,
+	     size_t n)
+{
+  void *expect = len > n ? NULL : (char *) dst + len;
+  if (CALL (impl, dst, src, c, n) != expect)
+    {
+      error (0, 0, "Wrong result in function %s %p %p", impl->name,
+	     CALL (impl, dst, src, c, n), expect);
+      ret = 1;
+      return;
+    }
+
+  if (memcmp (dst, src, len > n ? n : len) != 0)
+    {
+      error (0, 0, "Wrong result in function %s", impl->name);
+      ret = 1;
+      return;
+    }
+
+  if (HP_TIMING_AVAIL)
+    {
+      hp_timing_t start __attribute__ ((unused));
+      hp_timing_t stop __attribute__ ((unused));
+      hp_timing_t best_time = ~ (hp_timing_t) 0;
+      size_t i;
+
+      for (i = 0; i < 32; ++i)
+	{
+	  HP_TIMING_NOW (start);
+	  CALL (impl, dst, src, c, n);
+	  HP_TIMING_NOW (stop);
+	  HP_TIMING_BEST (best_time, start, stop);
+	}
+
+      printf ("\t%zd", (size_t) best_time);
+    }
+}
+
+static void
+do_test (size_t align1, size_t align2, int c, size_t len, size_t n,
+	 int max_char)
+{
+  size_t i;
+  char *s1, *s2;
+
+  align1 &= 7;
+  if (align1 + len >= page_size)
+    return;
+
+  align2 &= 7;
+  if (align2 + len >= page_size)
+    return;
+
+  s1 = (char *) (buf1 + align1);
+  s2 = (char *) (buf2 + align2);
+
+  for (i = 0; i < len - 1; ++i)
+    {
+      s1[i] = 32 + 23 * i % (max_char - 32);
+      if (s1[i] == (char) c)
+	--s1[i];
+    }
+  s1[len - 1] = c;
+  for (i = len; i + align1 < page_size && i < len + 64; ++i)
+    s1[i] = 32 + 32 * i % (max_char - 32);
+
+  if (HP_TIMING_AVAIL)
+    printf ("Length %4zd, n %4zd, char %d, alignment %2zd/%2zd:", len, n, c, align1, align2);
+
+  FOR_EACH_IMPL (impl, 0)
+    do_one_test (impl, s2, s1, c, len, n);
+
+  if (HP_TIMING_AVAIL)
+    putchar ('\n');
+}
+
+int
+test_main (void)
+{
+  size_t i;
+
+  test_init ();
+
+  printf ("%28s", "");
+  FOR_EACH_IMPL (impl, 0)
+    printf ("\t%s", impl->name);
+  putchar ('\n');
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (i, i, 12, 16, 16, 127);
+      do_test (i, i, 23, 16, 16, 255);
+      do_test (i, 2 * i, 28, 16, 16, 127);
+      do_test (2 * i, i, 31, 16, 16, 255);
+      do_test (8 - i, 2 * i, 1, 1 << i, 2 << i, 127);
+      do_test (2 * i, 8 - i, 17, 2 << i, 1 << i, 127);
+      do_test (8 - i, 2 * i, 0, 1 << i, 2 << i, 255);
+      do_test (2 * i, 8 - i, i, 2 << i, 1 << i, 255);
+    }
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (0, 0, i, 4 << i, 8 << i, 127);
+      do_test (0, 0, i, 16 << i, 8 << i, 127);
+      do_test (8 - i, 2 * i, i, 4 << i, 8 << i, 127);
+      do_test (8 - i, 2 * i, i, 16 << i, 8 << i, 127);
+    }
+
+  return ret;
+}
+
+#include "../test-skeleton.c"
diff --git a/benchtests/bench-memchr-ifunc.c b/benchtests/bench-memchr-ifunc.c
new file mode 100644
index 0000000..dd2c39f
--- /dev/null
+++ b/benchtests/bench-memchr-ifunc.c
@@ -0,0 +1,20 @@
+/* Measure IFUNC implementations of memchr function.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_IFUNC 1
+#include "bench-memchr.c"
diff --git a/benchtests/bench-memchr.c b/benchtests/bench-memchr.c
new file mode 100644
index 0000000..5470ce6
--- /dev/null
+++ b/benchtests/bench-memchr.c
@@ -0,0 +1,137 @@
+/* Measure memchr functions.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_MAIN
+#define TEST_NAME "memchr"
+#include "bench-string.h"
+
+typedef char *(*proto_t) (const char *, int, size_t);
+char *simple_memchr (const char *, int, size_t);
+
+IMPL (simple_memchr, 0)
+IMPL (memchr, 1)
+
+char *
+simple_memchr (const char *s, int c, size_t n)
+{
+  while (n--)
+    if (*s++ == (char) c)
+      return (char *) s - 1;
+  return NULL;
+}
+
+static void
+do_one_test (impl_t *impl, const char *s, int c, size_t n, char *exp_res)
+{
+  char *res = CALL (impl, s, c, n);
+  if (res != exp_res)
+    {
+      error (0, 0, "Wrong result in function %s %p %p", impl->name,
+	     res, exp_res);
+      ret = 1;
+      return;
+    }
+
+  if (HP_TIMING_AVAIL)
+    {
+      hp_timing_t start __attribute ((unused));
+      hp_timing_t stop __attribute ((unused));
+      hp_timing_t best_time = ~ (hp_timing_t) 0;
+      size_t i;
+
+      for (i = 0; i < 32; ++i)
+	{
+	  HP_TIMING_NOW (start);
+	  CALL (impl, s, c, n);
+	  HP_TIMING_NOW (stop);
+	  HP_TIMING_BEST (best_time, start, stop);
+	}
+
+      printf ("\t%zd", (size_t) best_time);
+    }
+}
+
+static void
+do_test (size_t align, size_t pos, size_t len, int seek_char)
+{
+  size_t i;
+  char *result;
+
+  align &= 7;
+  if (align + len >= page_size)
+    return;
+
+  for (i = 0; i < len; ++i)
+    {
+      buf1[align + i] = 1 + 23 * i % 127;
+      if (buf1[align + i] == seek_char)
+        buf1[align + i] = seek_char + 1;
+    }
+  buf1[align + len] = 0;
+
+  if (pos < len)
+    {
+      buf1[align + pos] = seek_char;
+      buf1[align + len] = -seek_char;
+      result = (char *) (buf1 + align + pos);
+    }
+  else
+    {
+      result = NULL;
+      buf1[align + len] = seek_char;
+    }
+
+  if (HP_TIMING_AVAIL)
+    printf ("Length %4zd, alignment %2zd:", pos, align);
+
+  FOR_EACH_IMPL (impl, 0)
+    do_one_test (impl, (char *) (buf1 + align), seek_char, len, result);
+
+  if (HP_TIMING_AVAIL)
+    putchar ('\n');
+}
+
+int
+test_main (void)
+{
+  size_t i;
+
+  test_init ();
+
+  printf ("%20s", "");
+  FOR_EACH_IMPL (impl, 0)
+    printf ("\t%s", impl->name);
+  putchar ('\n');
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (0, 16 << i, 2048, 23);
+      do_test (i, 64, 256, 23);
+      do_test (0, 16 << i, 2048, 0);
+      do_test (i, 64, 256, 0);
+    }
+  for (i = 1; i < 32; ++i)
+    {
+      do_test (0, i, i + 1, 23);
+      do_test (0, i, i + 1, 0);
+    }
+
+  return ret;
+}
+
+#include "../test-skeleton.c"
diff --git a/benchtests/bench-memcmp-ifunc.c b/benchtests/bench-memcmp-ifunc.c
new file mode 100644
index 0000000..4467164
--- /dev/null
+++ b/benchtests/bench-memcmp-ifunc.c
@@ -0,0 +1,20 @@
+/* Measure IFUNC implementations of memcmp function.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_IFUNC 1
+#include "bench-memcmp.c"
diff --git a/benchtests/bench-memcmp.c b/benchtests/bench-memcmp.c
new file mode 100644
index 0000000..053bb50
--- /dev/null
+++ b/benchtests/bench-memcmp.c
@@ -0,0 +1,183 @@
+/* Measure memcmp functions.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_MAIN
+#ifdef WIDE
+# define TEST_NAME "wmemcmp"
+#else
+# define TEST_NAME "memcmp"
+#endif
+#include "bench-string.h"
+#ifdef WIDE
+# include <inttypes.h>
+# include <wchar.h>
+
+# define MEMCMP wmemcmp
+# define MEMCPY wmemcpy
+# define SIMPLE_MEMCMP simple_wmemcmp
+# define CHAR wchar_t
+# define UCHAR wchar_t
+# define CHARBYTES 4
+# define CHAR__MIN WCHAR_MIN
+# define CHAR__MAX WCHAR_MAX
+int
+simple_wmemcmp (const wchar_t *s1, const wchar_t *s2, size_t n)
+{
+  int ret = 0;
+  /* Warning!
+	wmemcmp has to use SIGNED comparison for elements.
+	memcmp has to use UNSIGNED comparison for elemnts.
+  */
+  while (n-- && (ret = *s1 < *s2 ? -1 : *s1 == *s2 ? 0 : 1) == 0) {s1++; s2++;}
+  return ret;
+}
+#else
+# include <limits.h>
+
+# define MEMCMP memcmp
+# define MEMCPY memcpy
+# define SIMPLE_MEMCMP simple_memcmp
+# define CHAR char
+# define MAX_CHAR 255
+# define UCHAR unsigned char
+# define CHARBYTES 1
+# define CHAR__MIN CHAR_MIN
+# define CHAR__MAX CHAR_MAX
+
+int
+simple_memcmp (const char *s1, const char *s2, size_t n)
+{
+  int ret = 0;
+
+  while (n-- && (ret = *(unsigned char *) s1++ - *(unsigned char *) s2++) == 0);
+  return ret;
+}
+#endif
+
+typedef int (*proto_t) (const CHAR *, const CHAR *, size_t);
+
+IMPL (SIMPLE_MEMCMP, 0)
+IMPL (MEMCMP, 1)
+
+static void
+do_one_test (impl_t *impl, const CHAR *s1, const CHAR *s2, size_t len,
+	     int exp_result)
+{
+  if (HP_TIMING_AVAIL)
+    {
+      hp_timing_t start __attribute ((unused));
+      hp_timing_t stop __attribute ((unused));
+      hp_timing_t best_time = ~ (hp_timing_t) 0;
+      size_t i;
+
+      for (i = 0; i < 32; ++i)
+	{
+	  HP_TIMING_NOW (start);
+	  CALL (impl, s1, s2, len);
+	  HP_TIMING_NOW (stop);
+	  HP_TIMING_BEST (best_time, start, stop);
+	}
+
+      printf ("\t%zd", (size_t) best_time);
+    }
+}
+
+static void
+do_test (size_t align1, size_t align2, size_t len, int exp_result)
+{
+  size_t i;
+  CHAR *s1, *s2;
+
+  if (len == 0)
+    return;
+
+  align1 &= 63;
+  if (align1 + (len + 1) * CHARBYTES >= page_size)
+    return;
+
+  align2 &= 63;
+  if (align2 + (len + 1) * CHARBYTES >= page_size)
+    return;
+
+  s1 = (CHAR *) (buf1 + align1);
+  s2 = (CHAR *) (buf2 + align2);
+
+  for (i = 0; i < len; i++)
+    s1[i] = s2[i] = 1 + (23 << ((CHARBYTES - 1) * 8)) * i % CHAR__MAX;
+
+  s1[len] = align1;
+  s2[len] = align2;
+  s2[len - 1] -= exp_result;
+
+  if (HP_TIMING_AVAIL)
+    printf ("Length %4zd, alignment %2zd/%2zd:", len, align1, align2);
+
+  FOR_EACH_IMPL (impl, 0)
+    do_one_test (impl, s1, s2, len, exp_result);
+
+  if (HP_TIMING_AVAIL)
+    putchar ('\n');
+}
+
+int
+test_main (void)
+{
+  size_t i;
+
+  test_init ();
+
+  printf ("%23s", "");
+  FOR_EACH_IMPL (impl, 0)
+    printf ("\t%s", impl->name);
+  putchar ('\n');
+
+  for (i = 1; i < 16; ++i)
+    {
+      do_test (i * CHARBYTES, i * CHARBYTES, i, 0);
+      do_test (i * CHARBYTES, i * CHARBYTES, i, 1);
+      do_test (i * CHARBYTES, i * CHARBYTES, i, -1);
+    }
+
+  for (i = 0; i < 16; ++i)
+    {
+      do_test (0, 0, i, 0);
+      do_test (0, 0, i, 1);
+      do_test (0, 0, i, -1);
+    }
+
+  for (i = 1; i < 10; ++i)
+    {
+      do_test (0, 0, 2 << i, 0);
+      do_test (0, 0, 2 << i, 1);
+      do_test (0, 0, 2 << i, -1);
+      do_test (0, 0, 16 << i, 0);
+      do_test ((8 - i) * CHARBYTES, (2 * i) * CHARBYTES, 16 << i, 0);
+      do_test (0, 0, 16 << i, 1);
+      do_test (0, 0, 16 << i, -1);
+    }
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (i * CHARBYTES, 2 * (i * CHARBYTES), 8 << i, 0);
+      do_test (i * CHARBYTES, 2 * (i * CHARBYTES), 8 << i, 1);
+      do_test (i * CHARBYTES, 2 * (i * CHARBYTES), 8 << i, -1);
+    }
+
+  return ret;
+}
+#include "../test-skeleton.c"
diff --git a/benchtests/bench-memmem-ifunc.c b/benchtests/bench-memmem-ifunc.c
new file mode 100644
index 0000000..6b951d8
--- /dev/null
+++ b/benchtests/bench-memmem-ifunc.c
@@ -0,0 +1,20 @@
+/* Measure IFUNC implementations of memmem function.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_IFUNC 1
+#include "bench-memmem.c"
diff --git a/benchtests/bench-memmem.c b/benchtests/bench-memmem.c
new file mode 100644
index 0000000..ca758a8
--- /dev/null
+++ b/benchtests/bench-memmem.c
@@ -0,0 +1,172 @@
+/* Measure memmem functions.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_MAIN
+#define TEST_NAME "memmem"
+#define BUF1PAGES 20
+#define ITERATIONS 500
+#include "bench-string.h"
+
+typedef char *(*proto_t) (const void *, size_t, const void *, size_t);
+void *simple_memmem (const void *, size_t, const void *, size_t);
+
+IMPL (simple_memmem, 0)
+IMPL (memmem, 1)
+
+void *
+simple_memmem (const void *haystack, size_t haystack_len, const void *needle,
+	       size_t needle_len)
+{
+  const char *begin;
+  const char *const last_possible
+    = (const char *) haystack + haystack_len - needle_len;
+
+  if (needle_len == 0)
+    /* The first occurrence of the empty string is deemed to occur at
+       the beginning of the string.  */
+    return (void *) haystack;
+
+  /* Sanity check, otherwise the loop might search through the whole
+     memory.  */
+  if (__builtin_expect (haystack_len < needle_len, 0))
+    return NULL;
+
+  for (begin = (const char *) haystack; begin <= last_possible; ++begin)
+    if (begin[0] == ((const char *) needle)[0] &&
+	!memcmp ((const void *) &begin[1],
+		 (const void *) ((const char *) needle + 1),
+		 needle_len - 1))
+      return (void *) begin;
+
+  return NULL;
+}
+
+static void
+do_one_test (impl_t *impl, const void *haystack, size_t haystack_len,
+	     const void *needle, size_t needle_len, const void *expected)
+{
+  if (HP_TIMING_AVAIL)
+    {
+      hp_timing_t start __attribute ((unused));
+      hp_timing_t stop __attribute ((unused));
+      hp_timing_t best_time = ~ (hp_timing_t) 0;
+      size_t i;
+
+      for (i = 0; i < 32; ++i)
+	{
+	  HP_TIMING_NOW (start);
+	  CALL (impl, haystack, haystack_len, needle, needle_len);
+	  HP_TIMING_NOW (stop);
+	  HP_TIMING_BEST (best_time, start, stop);
+	}
+
+      printf ("\t%zd", (size_t) best_time);
+    }
+}
+
+static void
+do_test (const char *str, size_t len, size_t idx)
+{
+  char tmpbuf[len];
+
+  memcpy (tmpbuf, buf1 + idx, len);
+  memcpy (buf1 + idx, str, len);
+
+  if (HP_TIMING_AVAIL)
+    printf ("String %s, offset %zd:", str, idx);
+
+  FOR_EACH_IMPL (impl, 0)
+    do_one_test (impl, buf1, BUF1PAGES * page_size, str, len, buf1 + idx);
+
+  memcpy (buf1 + idx, tmpbuf, len);
+
+  if (HP_TIMING_AVAIL)
+    putchar ('\n');
+}
+
+static void
+do_random_tests (void)
+{
+  for (size_t n = 0; n < ITERATIONS; ++n)
+    {
+      char tmpbuf[32];
+
+      size_t shift = random () % 11;
+      size_t rel = random () % ((2 << (shift + 1)) * 64);
+      size_t idx = MIN ((2 << shift) * 64 + rel, BUF1PAGES * page_size - 2);
+      size_t len = random () % (sizeof (tmpbuf) - 1) + 1;
+      len = MIN (len, BUF1PAGES * page_size - idx - 1);
+      memcpy (tmpbuf, buf1 + idx, len);
+      for (size_t i = random () % len / 2 + 1; i > 0; --i)
+	{
+	  size_t off = random () % len;
+	  char ch = '0' + random () % 10;
+
+	  buf1[idx + off] = ch;
+	}
+
+      if (HP_TIMING_AVAIL)
+	printf ("String %.*s, offset %zd:", (int) len, buf1 + idx, idx);
+
+      FOR_EACH_IMPL (impl, 0)
+	do_one_test (impl, buf1, BUF1PAGES * page_size, buf1 + idx, len,
+		     buf1 + idx);
+
+      if (HP_TIMING_AVAIL)
+	putchar ('\n');
+
+      memcpy (buf1 + idx, tmpbuf, len);
+    }
+}
+
+static const char *const strs[] =
+  {
+    "00000", "00112233", "0123456789", "0000111100001111",
+    "00000111110000022222", "012345678901234567890",
+    "abc0", "aaaa0", "abcabc0"
+  };
+
+
+int
+test_main (void)
+{
+  size_t i;
+
+  test_init ();
+
+  printf ("%23s", "");
+  FOR_EACH_IMPL (impl, 0)
+    printf ("\t%s", impl->name);
+  putchar ('\n');
+
+  for (i = 0; i < BUF1PAGES * page_size; ++i)
+    buf1[i] = 60 + random () % 32;
+
+  for (i = 0; i < sizeof (strs) / sizeof (strs[0]); ++i)
+    for (size_t j = 0; j < 120; j += 7)
+      {
+	size_t len = strlen (strs[i]);
+
+	do_test (strs[i], len, j);
+      }
+
+  do_random_tests ();
+  return ret;
+}
+
+#include "../test-skeleton.c"
diff --git a/benchtests/bench-memmove-ifunc.c b/benchtests/bench-memmove-ifunc.c
new file mode 100644
index 0000000..345e594
--- /dev/null
+++ b/benchtests/bench-memmove-ifunc.c
@@ -0,0 +1,20 @@
+/* Measure IFUNC implementations of memmove function.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_IFUNC 1
+#include "bench-memmove.c"
diff --git a/benchtests/bench-memmove.c b/benchtests/bench-memmove.c
new file mode 100644
index 0000000..dccde5d
--- /dev/null
+++ b/benchtests/bench-memmove.c
@@ -0,0 +1,187 @@
+/* Measure memmove functions.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_MAIN
+#ifdef TEST_BCOPY
+# define TEST_NAME "bcopy"
+#else
+# define TEST_NAME "memmove"
+#endif
+#include "bench-string.h"
+
+char *simple_memmove (char *, const char *, size_t);
+
+#ifdef TEST_BCOPY
+typedef void (*proto_t) (const char *, char *, size_t);
+void simple_bcopy (const char *, char *, size_t);
+
+IMPL (simple_bcopy, 0)
+IMPL (bcopy, 1)
+
+void
+simple_bcopy (const char *src, char *dst, size_t n)
+{
+  simple_memmove (dst, src, n);
+}
+#else
+typedef char *(*proto_t) (char *, const char *, size_t);
+
+IMPL (simple_memmove, 0)
+IMPL (memmove, 1)
+#endif
+
+char *
+simple_memmove (char *dst, const char *src, size_t n)
+{
+  char *ret = dst;
+  if (src < dst)
+    {
+      dst += n;
+      src += n;
+      while (n--)
+	*--dst = *--src;
+    }
+  else
+    while (n--)
+      *dst++ = *src++;
+  return ret;
+}
+
+static void
+do_one_test (impl_t *impl, char *dst, char *src, const char *orig_src,
+	     size_t len)
+{
+  memcpy (src, orig_src, len);
+#ifdef TEST_BCOPY
+  CALL (impl, src, dst, len);
+#else
+  char *res;
+
+  res = CALL (impl, dst, src, len);
+  if (res != dst)
+    {
+      error (0, 0, "Wrong result in function %s %p %p", impl->name,
+	     res, dst);
+      ret = 1;
+      return;
+    }
+#endif
+
+  if (memcmp (dst, orig_src, len) != 0)
+    {
+      error (0, 0, "Wrong result in function %s dst \"%s\" src \"%s\"",
+	     impl->name, dst, src);
+      ret = 1;
+      return;
+    }
+
+  if (HP_TIMING_AVAIL)
+    {
+      hp_timing_t start __attribute ((unused));
+      hp_timing_t stop __attribute ((unused));
+      hp_timing_t best_time = ~ (hp_timing_t) 0;
+      size_t i;
+
+      for (i = 0; i < 32; ++i)
+	{
+	  HP_TIMING_NOW (start);
+#ifdef TEST_BCOPY
+	  CALL (impl, src, dst, len);
+#else
+	  CALL (impl, dst, src, len);
+#endif
+	  HP_TIMING_NOW (stop);
+	  HP_TIMING_BEST (best_time, start, stop);
+	}
+
+      printf ("\t%zd", (size_t) best_time);
+    }
+}
+
+static void
+do_test (size_t align1, size_t align2, size_t len)
+{
+  size_t i, j;
+  char *s1, *s2;
+
+  align1 &= 63;
+  if (align1 + len >= page_size)
+    return;
+
+  align2 &= 63;
+  if (align2 + len >= page_size)
+    return;
+
+  s1 = (char *) (buf1 + align1);
+  s2 = (char *) (buf2 + align2);
+
+  for (i = 0, j = 1; i < len; i++, j += 23)
+    s1[i] = j;
+
+  if (HP_TIMING_AVAIL)
+    printf ("Length %4zd, alignment %2zd/%2zd:", len, align1, align2);
+
+  FOR_EACH_IMPL (impl, 0)
+    do_one_test (impl, s2, (char *) (buf2 + align1), s1, len);
+
+  if (HP_TIMING_AVAIL)
+    putchar ('\n');
+}
+
+int
+test_main (void)
+{
+  size_t i;
+
+  test_init ();
+
+  printf ("%23s", "");
+  FOR_EACH_IMPL (impl, 0)
+    printf ("\t%s", impl->name);
+  putchar ('\n');
+
+  for (i = 0; i < 14; ++i)
+    {
+      do_test (0, 32, 1 << i);
+      do_test (32, 0, 1 << i);
+      do_test (0, i, 1 << i);
+      do_test (i, 0, 1 << i);
+    }
+
+  for (i = 0; i < 32; ++i)
+    {
+      do_test (0, 32, i);
+      do_test (32, 0, i);
+      do_test (0, i, i);
+      do_test (i, 0, i);
+    }
+
+  for (i = 3; i < 32; ++i)
+    {
+      if ((i & (i - 1)) == 0)
+	continue;
+      do_test (0, 32, 16 * i);
+      do_test (32, 0, 16 * i);
+      do_test (0, i, 16 * i);
+      do_test (i, 0, 16 * i);
+    }
+
+  return ret;
+}
+
+#include "../test-skeleton.c"
diff --git a/benchtests/bench-mempcpy-ifunc.c b/benchtests/bench-mempcpy-ifunc.c
new file mode 100644
index 0000000..4fa93e0
--- /dev/null
+++ b/benchtests/bench-mempcpy-ifunc.c
@@ -0,0 +1,20 @@
+/* Measure IFUNC implementations of mempcpy function.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_IFUNC 1
+#include "bench-mempcpy.c"
diff --git a/benchtests/bench-mempcpy.c b/benchtests/bench-mempcpy.c
new file mode 100644
index 0000000..0e0e3b9
--- /dev/null
+++ b/benchtests/bench-mempcpy.c
@@ -0,0 +1,37 @@
+/* Measure mempcpy functions.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define MEMCPY_RESULT(dst, len) (dst) + (len)
+#define TEST_MAIN
+#define TEST_NAME "mempcpy"
+#include "bench-string.h"
+
+char *simple_mempcpy (char *, const char *, size_t);
+
+IMPL (simple_mempcpy, 0)
+IMPL (mempcpy, 1)
+
+char *
+simple_mempcpy (char *dst, const char *src, size_t n)
+{
+  while (n--)
+    *dst++ = *src++;
+  return dst;
+}
+
+#include "bench-memcpy.c"
diff --git a/benchtests/bench-memset-ifunc.c b/benchtests/bench-memset-ifunc.c
new file mode 100644
index 0000000..1d43eef
--- /dev/null
+++ b/benchtests/bench-memset-ifunc.c
@@ -0,0 +1,20 @@
+/* Measure IFUNC implementations of memset function.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_IFUNC 1
+#include "bench-memset.c"
diff --git a/benchtests/bench-memset.c b/benchtests/bench-memset.c
new file mode 100644
index 0000000..92e34f0
--- /dev/null
+++ b/benchtests/bench-memset.c
@@ -0,0 +1,169 @@
+/* Measure memset functions.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_MAIN
+#ifdef TEST_BZERO
+# define TEST_NAME "bzero"
+#else
+# define TEST_NAME "memset"
+#endif
+#define MIN_PAGE_SIZE 131072
+#include "bench-string.h"
+
+char *simple_memset (char *, int, size_t);
+
+#ifdef TEST_BZERO
+typedef void (*proto_t) (char *, size_t);
+void simple_bzero (char *, size_t);
+void builtin_bzero (char *, size_t);
+
+IMPL (simple_bzero, 0)
+IMPL (builtin_bzero, 0)
+IMPL (bzero, 1)
+
+void
+simple_bzero (char *s, size_t n)
+{
+  simple_memset (s, 0, n);
+}
+
+void
+builtin_bzero (char *s, size_t n)
+{
+  __builtin_bzero (s, n);
+}
+#else
+typedef char *(*proto_t) (char *, int, size_t);
+char *builtin_memset (char *, int, size_t);
+
+IMPL (simple_memset, 0)
+IMPL (builtin_memset, 0)
+IMPL (memset, 1)
+
+char *
+builtin_memset (char *s, int c, size_t n)
+{
+  return __builtin_memset (s, c, n);
+}
+#endif
+
+char *
+simple_memset (char *s, int c, size_t n)
+{
+  char *r = s, *end = s + n;
+  while (r < end)
+    *r++ = c;
+  return s;
+}
+
+static void
+do_one_test (impl_t *impl, char *s, int c __attribute ((unused)), size_t n)
+{
+  char tstbuf[n];
+#ifdef TEST_BZERO
+  simple_bzero (tstbuf, n);
+  CALL (impl, s, n);
+  if (memcmp (s, tstbuf, n) != 0)
+#else
+  char *res = CALL (impl, s, c, n);
+  if (res != s
+      || simple_memset (tstbuf, c, n) != tstbuf
+      || memcmp (s, tstbuf, n) != 0)
+#endif
+    {
+      error (0, 0, "Wrong result in function %s", impl->name);
+      ret = 1;
+      return;
+    }
+
+  if (HP_TIMING_AVAIL)
+    {
+      hp_timing_t start __attribute ((unused));
+      hp_timing_t stop __attribute ((unused));
+      hp_timing_t best_time = ~ (hp_timing_t) 0;
+      size_t i;
+
+      for (i = 0; i < 32; ++i)
+	{
+	  HP_TIMING_NOW (start);
+#ifdef TEST_BZERO
+	  CALL (impl, s, n);
+#else
+	  CALL (impl, s, c, n);
+#endif
+
+	  HP_TIMING_NOW (stop);
+	  HP_TIMING_BEST (best_time, start, stop);
+	}
+
+      printf ("\t%zd", (size_t) best_time);
+    }
+}
+
+static void
+do_test (size_t align, int c, size_t len)
+{
+  align &= 7;
+  if (align + len > page_size)
+    return;
+
+  if (HP_TIMING_AVAIL)
+    printf ("Length %4zd, alignment %2zd, c %2d:", len, align, c);
+
+  FOR_EACH_IMPL (impl, 0)
+    do_one_test (impl, (char *) buf1 + align, c, len);
+
+  if (HP_TIMING_AVAIL)
+    putchar ('\n');
+}
+
+int
+test_main (void)
+{
+  size_t i;
+  int c = 0;
+
+  test_init ();
+
+  printf ("%24s", "");
+  FOR_EACH_IMPL (impl, 0)
+    printf ("\t%s", impl->name);
+  putchar ('\n');
+
+#ifndef TEST_BZERO
+  for (c = -65; c <= 130; c += 65)
+#endif
+    {
+      for (i = 0; i < 18; ++i)
+	do_test (0, c, 1 << i);
+      for (i = 1; i < 32; ++i)
+	{
+	  do_test (i, c, i);
+	  if (i & (i - 1))
+	    do_test (0, c, i);
+	}
+      do_test (1, c, 14);
+      do_test (3, c, 1024);
+      do_test (4, c, 64);
+      do_test (2, c, 25);
+    }
+
+  return ret;
+}
+
+#include "../test-skeleton.c"
diff --git a/benchtests/bench-rawmemchr-ifunc.c b/benchtests/bench-rawmemchr-ifunc.c
new file mode 100644
index 0000000..b1e86f1
--- /dev/null
+++ b/benchtests/bench-rawmemchr-ifunc.c
@@ -0,0 +1,20 @@
+/* Measure IFUNC implementations of rawmemchr function.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_IFUNC 1
+#include "bench-rawmemchr.c"
diff --git a/benchtests/bench-rawmemchr.c b/benchtests/bench-rawmemchr.c
new file mode 100644
index 0000000..a6b29d7
--- /dev/null
+++ b/benchtests/bench-rawmemchr.c
@@ -0,0 +1,133 @@
+/* Measure memchr functions.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <assert.h>
+
+#define TEST_MAIN
+#define TEST_NAME "rawmemchr"
+#include "bench-string.h"
+
+typedef char *(*proto_t) (const char *, int);
+char *simple_rawmemchr (const char *, int);
+
+IMPL (simple_rawmemchr, 0)
+IMPL (rawmemchr, 1)
+
+char *
+simple_rawmemchr (const char *s, int c)
+{
+  while (1)
+    if (*s++ == (char) c)
+      return (char *) s - 1;
+  return NULL;
+}
+
+static void
+do_one_test (impl_t *impl, const char *s, int c, char *exp_res)
+{
+  char *res = CALL (impl, s, c);
+  if (res != exp_res)
+    {
+      error (0, 0, "Wrong result in function %s %p %p", impl->name,
+	     res, exp_res);
+      ret = 1;
+      return;
+    }
+
+  if (HP_TIMING_AVAIL)
+    {
+      hp_timing_t start __attribute ((unused));
+      hp_timing_t stop __attribute ((unused));
+      hp_timing_t best_time = ~ (hp_timing_t) 0;
+      size_t i;
+
+      for (i = 0; i < 32; ++i)
+	{
+	  HP_TIMING_NOW (start);
+	  CALL (impl, s, c);
+	  HP_TIMING_NOW (stop);
+	  HP_TIMING_BEST (best_time, start, stop);
+	}
+
+      printf ("\t%zd", (size_t) best_time);
+    }
+}
+
+static void
+do_test (size_t align, size_t pos, size_t len, int seek_char)
+{
+  size_t i;
+  char *result;
+
+  align &= 7;
+  if (align + len >= page_size)
+    return;
+
+  for (i = 0; i < len; ++i)
+    {
+      buf1[align + i] = 1 + 23 * i % 127;
+      if (buf1[align + i] == seek_char)
+	buf1[align + i] = seek_char + 1;
+    }
+  buf1[align + len] = 0;
+
+  assert (pos < len);
+
+  buf1[align + pos] = seek_char;
+  buf1[align + len] = -seek_char;
+  result = (char *) (buf1 + align + pos);
+
+  if (HP_TIMING_AVAIL)
+    printf ("Length %4zd, alignment %2zd:", pos, align);
+
+  FOR_EACH_IMPL (impl, 0)
+    do_one_test (impl, (char *) (buf1 + align), seek_char, result);
+
+  if (HP_TIMING_AVAIL)
+    putchar ('\n');
+}
+
+int
+test_main (void)
+{
+  size_t i;
+
+  test_init ();
+
+  printf ("%20s", "");
+  FOR_EACH_IMPL (impl, 0)
+    printf ("\t%s", impl->name);
+  putchar ('\n');
+
+  for (i = 1; i < 7; ++i)
+    {
+      do_test (0, 16 << i, 2048, 23);
+      do_test (i, 64, 256, 23);
+      do_test (0, 16 << i, 2048, 0);
+      do_test (i, 64, 256, 0);
+    }
+  for (i = 1; i < 32; ++i)
+    {
+      do_test (0, i, i + 1, 23);
+      do_test (0, i, i + 1, 0);
+    }
+
+  return ret;
+}
+
+#include "../test-skeleton.c"
diff --git a/benchtests/bench-stpcpy-ifunc.c b/benchtests/bench-stpcpy-ifunc.c
new file mode 100644
index 0000000..d36bcb2
--- /dev/null
+++ b/benchtests/bench-stpcpy-ifunc.c
@@ -0,0 +1,20 @@
+/* Measure IFUNC implementations of stpcpy function.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_IFUNC 1
+#include "bench-stpcpy.c"
diff --git a/benchtests/bench-stpcpy.c b/benchtests/bench-stpcpy.c
new file mode 100644
index 0000000..0645298
--- /dev/null
+++ b/benchtests/bench-stpcpy.c
@@ -0,0 +1,36 @@
+/* Measure stpcpy functions.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define STRCPY_RESULT(dst, len) ((dst) + (len))
+#define TEST_MAIN
+#define TEST_NAME "stpcpy"
+#include "bench-string.h"
+
+char *simple_stpcpy (char *, const char *);
+
+IMPL (simple_stpcpy, 0)
+IMPL (stpcpy, 1)
+
+char *
+simple_stpcpy (char *dst, const char *src)
+{
+  while ((*dst++ = *src++) != '\0');
+  return dst - 1;
+}
+
+#include "bench-strcpy.c"
diff --git a/benchtests/bench-stpncpy-ifunc.c b/benchtests/bench-stpncpy-ifunc.c
new file mode 100644
index 0000000..736cac0
--- /dev/null
+++ b/benchtests/bench-stpncpy-ifunc.c
@@ -0,0 +1,20 @@
+/* Measure IFUNC implementations of stpncpy function.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_IFUNC 1
+#include "bench-stpncpy.c"
diff --git a/benchtests/bench-stpncpy.c b/benchtests/bench-stpncpy.c
new file mode 100644
index 0000000..65ed800
--- /dev/null
+++ b/benchtests/bench-stpncpy.c
@@ -0,0 +1,59 @@
+/* Measure stpncpy functions.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define STRNCPY_RESULT(dst, len, n) ((dst) + ((len) > (n) ? (n) : (len)))
+#define TEST_MAIN
+#define TEST_NAME "stpncpy"
+#include "bench-string.h"
+
+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)
+
+char *
+simple_stpncpy (char *dst, const char *src, size_t n)
+{
+  while (n--)
+    if ((*dst++ = *src++) == '\0')
+      {
+	size_t i;
+
+	for (i = 0; i < n; ++i)
+	  dst[i] = '\0';
+	return dst - 1;
+      }
+  return dst;
+}
+
+char *
+stupid_stpncpy (char *dst, const char *src, size_t n)
+{
+  size_t nc = strnlen (src, n);
+  size_t i;
+
+  for (i = 0; i < nc; ++i)
+    dst[i] = src[i];
+  for (; i < n; ++i)
+    dst[i] = '\0';
+  return dst + nc;
+}
+
+#include "bench-strncpy.c"
diff --git a/benchtests/bench-strcasecmp-ifunc.c b/benchtests/bench-strcasecmp-ifunc.c
new file mode 100644
index 0000000..bdeb8c5
--- /dev/null
+++ b/benchtests/bench-strcasecmp-ifunc.c
@@ -0,0 +1,20 @@
+/* Measure IFUNC implementations of strcasecmp function.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_IFUNC 1
+#include "bench-strcasecmp.c"
diff --git a/benchtests/bench-strcasecmp.c b/benchtests/bench-strcasecmp.c
new file mode 100644
index 0000000..27250bb
--- /dev/null
+++ b/benchtests/bench-strcasecmp.c
@@ -0,0 +1,183 @@
+/* Measure strcasecmp functions.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <ctype.h>
+#define TEST_MAIN
+#define TEST_NAME "strcasecmp"
+#include "bench-string.h"
+
+typedef int (*proto_t) (const char *, const char *);
+static int simple_strcasecmp (const char *, const char *);
+static int stupid_strcasecmp (const char *, const char *);
+
+IMPL (stupid_strcasecmp, 0)
+IMPL (simple_strcasecmp, 0)
+IMPL (strcasecmp, 1)
+
+static int
+simple_strcasecmp (const char *s1, const char *s2)
+{
+  int ret;
+
+  while ((ret = ((unsigned char) tolower (*s1)
+		 - (unsigned char) tolower (*s2))) == 0
+	 && *s1++)
+    ++s2;
+  return ret;
+}
+
+static int
+stupid_strcasecmp (const char *s1, const char *s2)
+{
+  size_t ns1 = strlen (s1) + 1, ns2 = strlen (s2) + 1;
+  size_t n = ns1 < ns2 ? ns1 : ns2;
+  int ret = 0;
+
+  while (n--)
+    {
+      if ((ret = ((unsigned char) tolower (*s1)
+		  - (unsigned char) tolower (*s2))) != 0)
+	break;
+      ++s1;
+      ++s2;
+    }
+  return ret;
+}
+
+static void
+do_one_test (impl_t *impl, const char *s1, const char *s2, int exp_result)
+{
+  int result = CALL (impl, s1, s2);
+  if ((exp_result == 0 && result != 0)
+      || (exp_result < 0 && result >= 0)
+      || (exp_result > 0 && result <= 0))
+    {
+      error (0, 0, "Wrong result in function %s %d %d", impl->name,
+	     result, exp_result);
+      ret = 1;
+      return;
+    }
+
+  if (HP_TIMING_AVAIL)
+    {
+      hp_timing_t start __attribute ((unused));
+      hp_timing_t stop __attribute ((unused));
+      hp_timing_t best_time = ~ (hp_timing_t) 0;
+      size_t i;
+
+      for (i = 0; i < 32; ++i)
+	{
+	  HP_TIMING_NOW (start);
+	  CALL (impl, s1, s2);
+	  HP_TIMING_NOW (stop);
+	  HP_TIMING_BEST (best_time, start, stop);
+	}
+
+      printf ("\t%zd", (size_t) best_time);
+    }
+}
+
+static void
+do_test (size_t align1, size_t align2, size_t len, int max_char,
+	 int exp_result)
+{
+  size_t i;
+  char *s1, *s2;
+
+  if (len == 0)
+    return;
+
+  align1 &= 7;
+  if (align1 + len + 1 >= page_size)
+    return;
+
+  align2 &= 7;
+  if (align2 + len + 1 >= page_size)
+    return;
+
+  s1 = (char *) (buf1 + align1);
+  s2 = (char *) (buf2 + align2);
+
+  for (i = 0; i < len; i++)
+    {
+      s1[i] = toupper (1 + 23 * i % max_char);
+      s2[i] = tolower (s1[i]);
+    }
+
+  s1[len] = s2[len] = 0;
+  s1[len + 1] = 23;
+  s2[len + 1] = 24 + exp_result;
+  if ((s2[len - 1] == 'z' && exp_result == -1)
+      || (s2[len - 1] == 'a' && exp_result == 1))
+    s1[len - 1] += exp_result;
+  else
+    s2[len - 1] -= exp_result;
+
+  if (HP_TIMING_AVAIL)
+    printf ("Length %4zd, alignment %2zd/%2zd:", len, align1, align2);
+
+  FOR_EACH_IMPL (impl, 0)
+    do_one_test (impl, s1, s2, exp_result);
+
+  if (HP_TIMING_AVAIL)
+    putchar ('\n');
+}
+
+int
+test_main (void)
+{
+  size_t i;
+
+  test_init ();
+
+  printf ("%23s", "");
+  FOR_EACH_IMPL (impl, 0)
+    printf ("\t%s", impl->name);
+  putchar ('\n');
+
+  for (i = 1; i < 16; ++i)
+    {
+      do_test (i, i, i, 127, 0);
+      do_test (i, i, i, 127, 1);
+      do_test (i, i, i, 127, -1);
+    }
+
+  for (i = 1; i < 10; ++i)
+    {
+      do_test (0, 0, 2 << i, 127, 0);
+      do_test (0, 0, 2 << i, 254, 0);
+      do_test (0, 0, 2 << i, 127, 1);
+      do_test (0, 0, 2 << i, 254, 1);
+      do_test (0, 0, 2 << i, 127, -1);
+      do_test (0, 0, 2 << i, 254, -1);
+    }
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (i, 2 * i, 8 << i, 127, 0);
+      do_test (2 * i, i, 8 << i, 254, 0);
+      do_test (i, 2 * i, 8 << i, 127, 1);
+      do_test (2 * i, i, 8 << i, 254, 1);
+      do_test (i, 2 * i, 8 << i, 127, -1);
+      do_test (2 * i, i, 8 << i, 254, -1);
+    }
+
+  return ret;
+}
+
+#include "../test-skeleton.c"
diff --git a/benchtests/bench-strcasestr-ifunc.c b/benchtests/bench-strcasestr-ifunc.c
new file mode 100644
index 0000000..645f504
--- /dev/null
+++ b/benchtests/bench-strcasestr-ifunc.c
@@ -0,0 +1,20 @@
+/* Measure IFUNC implementations of strcasestr function.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_IFUNC 1
+#include "bench-strcasestr.c"
diff --git a/benchtests/bench-strcasestr.c b/benchtests/bench-strcasestr.c
new file mode 100644
index 0000000..289b490
--- /dev/null
+++ b/benchtests/bench-strcasestr.c
@@ -0,0 +1,186 @@
+/* Measure strcasestr functions.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_MAIN
+#define TEST_NAME "strcasestr"
+#include "bench-string.h"
+
+
+#define STRCASESTR simple_strcasestr
+#define NO_ALIAS
+#define __strncasecmp strncasecmp
+#include "../string/strcasestr.c"
+
+
+static char *
+stupid_strcasestr (const char *s1, const char *s2)
+{
+  ssize_t s1len = strlen (s1);
+  ssize_t s2len = strlen (s2);
+
+  if (s2len > s1len)
+    return NULL;
+
+  for (ssize_t i = 0; i <= s1len - s2len; ++i)
+    {
+      size_t j;
+      for (j = 0; j < s2len; ++j)
+	if (tolower (s1[i + j]) != tolower (s2[j]))
+	  break;
+      if (j == s2len)
+	return (char *) s1 + i;
+    }
+
+  return NULL;
+}
+
+
+typedef char *(*proto_t) (const char *, const char *);
+
+IMPL (stupid_strcasestr, 0)
+IMPL (simple_strcasestr, 0)
+IMPL (strcasestr, 1)
+
+
+static void
+do_one_test (impl_t *impl, const char *s1, const char *s2, char *exp_result)
+{
+  if (HP_TIMING_AVAIL)
+    {
+      hp_timing_t start __attribute ((unused));
+      hp_timing_t stop __attribute ((unused));
+      hp_timing_t best_time = ~(hp_timing_t) 0;
+      size_t i;
+
+      for (i = 0; i < 32; ++i)
+	{
+	  HP_TIMING_NOW (start);
+	  CALL (impl, s1, s2);
+	  HP_TIMING_NOW (stop);
+	  HP_TIMING_BEST (best_time, start, stop);
+	}
+
+      printf ("\t%zd", (size_t) best_time);
+    }
+}
+
+
+static void
+do_test (size_t align1, size_t align2, size_t len1, size_t len2,
+	 int fail)
+{
+  char *s1 = (char *) (buf1 + align1);
+  char *s2 = (char *) (buf2 + align2);
+
+  static const char d[] = "1234567890abcxyz";
+#define dl (sizeof (d) - 1)
+  char *ss2 = s2;
+  for (size_t l = len2; l > 0; l = l > dl ? l - dl : 0)
+    {
+      size_t t = l > dl ? dl : l;
+      ss2 = mempcpy (ss2, d, t);
+    }
+  s2[len2] = '\0';
+
+  if (fail)
+    {
+      char *ss1 = s1;
+      for (size_t l = len1; l > 0; l = l > dl ? l - dl : 0)
+	{
+	  size_t t = l > dl ? dl : l;
+	  memcpy (ss1, d, t);
+	  ++ss1[len2 > 7 ? 7 : len2 - 1];
+	  ss1 += t;
+	}
+    }
+  else
+    {
+      memset (s1, '0', len1);
+      for (size_t i = 0; i < len2; ++i)
+	s1[len1 - len2 + i] = toupper (s2[i]);
+    }
+  s1[len1] = '\0';
+
+  if (HP_TIMING_AVAIL)
+    printf ("Length %4zd/%zd, alignment %2zd/%2zd, %s:",
+	    len1, len2, align1, align2, fail ? "fail" : "found");
+
+  FOR_EACH_IMPL (impl, 0)
+    do_one_test (impl, s1, s2, fail ? NULL : s1 + len1 - len2);
+
+  if (HP_TIMING_AVAIL)
+    putchar ('\n');
+}
+
+static int
+test_main (void)
+{
+  test_init ();
+
+  printf ("%23s", "");
+  FOR_EACH_IMPL (impl, 0)
+    printf ("\t%s", impl->name);
+  putchar ('\n');
+
+  for (size_t klen = 2; klen < 32; ++klen)
+    for (size_t hlen = 2 * klen; hlen < 16 * klen; hlen += klen)
+      {
+	do_test (0, 0, hlen, klen, 0);
+	do_test (0, 0, hlen, klen, 1);
+	do_test (0, 3, hlen, klen, 0);
+	do_test (0, 3, hlen, klen, 1);
+	do_test (0, 9, hlen, klen, 0);
+	do_test (0, 9, hlen, klen, 1);
+	do_test (0, 15, hlen, klen, 0);
+	do_test (0, 15, hlen, klen, 1);
+
+	do_test (3, 0, hlen, klen, 0);
+	do_test (3, 0, hlen, klen, 1);
+	do_test (3, 3, hlen, klen, 0);
+	do_test (3, 3, hlen, klen, 1);
+	do_test (3, 9, hlen, klen, 0);
+	do_test (3, 9, hlen, klen, 1);
+	do_test (3, 15, hlen, klen, 0);
+	do_test (3, 15, hlen, klen, 1);
+
+	do_test (9, 0, hlen, klen, 0);
+	do_test (9, 0, hlen, klen, 1);
+	do_test (9, 3, hlen, klen, 0);
+	do_test (9, 3, hlen, klen, 1);
+	do_test (9, 9, hlen, klen, 0);
+	do_test (9, 9, hlen, klen, 1);
+	do_test (9, 15, hlen, klen, 0);
+	do_test (9, 15, hlen, klen, 1);
+
+	do_test (15, 0, hlen, klen, 0);
+	do_test (15, 0, hlen, klen, 1);
+	do_test (15, 3, hlen, klen, 0);
+	do_test (15, 3, hlen, klen, 1);
+	do_test (15, 9, hlen, klen, 0);
+	do_test (15, 9, hlen, klen, 1);
+	do_test (15, 15, hlen, klen, 0);
+	do_test (15, 15, hlen, klen, 1);
+      }
+
+  do_test (0, 0, page_size - 1, 16, 0);
+  do_test (0, 0, page_size - 1, 16, 1);
+
+  return ret;
+}
+
+#include "../test-skeleton.c"
diff --git a/benchtests/bench-strcat-ifunc.c b/benchtests/bench-strcat-ifunc.c
new file mode 100644
index 0000000..003dc38
--- /dev/null
+++ b/benchtests/bench-strcat-ifunc.c
@@ -0,0 +1,20 @@
+/* Measure IFUNC implementations of strcat function.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_IFUNC 1
+#include "bench-strcat.c"
diff --git a/benchtests/bench-strcat.c b/benchtests/bench-strcat.c
new file mode 100644
index 0000000..b70a272
--- /dev/null
+++ b/benchtests/bench-strcat.c
@@ -0,0 +1,155 @@
+/* Measure strcat functions.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_MAIN
+#define TEST_NAME "strcat"
+#include "bench-string.h"
+
+typedef char *(*proto_t) (char *, const char *);
+char *simple_strcat (char *, const char *);
+
+IMPL (simple_strcat, 0)
+IMPL (strcat, 1)
+
+char *
+simple_strcat (char *dst, const char *src)
+{
+  char *ret = dst;
+  while (*dst++ != '\0');
+  --dst;
+  while ((*dst++ = *src++) != '\0');
+  return ret;
+}
+
+static void
+do_one_test (impl_t *impl, char *dst, const char *src)
+{
+  size_t k = strlen (dst);
+  if (CALL (impl, dst, src) != dst)
+    {
+      error (0, 0, "Wrong result in function %s %p %p", impl->name,
+	     CALL (impl, dst, src), dst);
+      ret = 1;
+      return;
+    }
+
+  if (strcmp (dst + k, src) != 0)
+    {
+      error (0, 0, "Wrong result in function %s dst \"%s\" src \"%s\"",
+	     impl->name, dst, src);
+      ret = 1;
+      return;
+    }
+
+  if (HP_TIMING_AVAIL)
+    {
+      hp_timing_t start __attribute ((unused));
+      hp_timing_t stop __attribute ((unused));
+      hp_timing_t best_time = ~ (hp_timing_t) 0;
+      size_t i;
+
+      for (i = 0; i < 32; ++i)
+	{
+	  dst[k] = '\0';
+	  HP_TIMING_NOW (start);
+	  CALL (impl, dst, src);
+	  HP_TIMING_NOW (stop);
+	  HP_TIMING_BEST (best_time, start, stop);
+	}
+
+      printf ("\t%zd", (size_t) best_time);
+    }
+}
+
+static void
+do_test (size_t align1, size_t align2, size_t len1, size_t len2, int max_char)
+{
+  size_t i;
+  char *s1, *s2;
+
+  align1 &= 7;
+  if (align1 + len1 >= page_size)
+    return;
+
+  align2 &= 7;
+  if (align2 + len1 + len2 >= page_size)
+    return;
+
+  s1 = (char *) (buf1 + align1);
+  s2 = (char *) (buf2 + align2);
+
+  for (i = 0; i < len1; ++i)
+    s1[i] = 32 + 23 * i % (max_char - 32);
+  s1[len1] = '\0';
+
+  for (i = 0; i < len2; i++)
+    s2[i] = 32 + 23 * i % (max_char - 32);
+
+  if (HP_TIMING_AVAIL)
+    printf ("Length %4zd/%4zd, alignment %2zd/%2zd:", len1, len2, align1, align2);
+
+  FOR_EACH_IMPL (impl, 0)
+    {
+      s2[len2] = '\0';
+      do_one_test (impl, s2, s1);
+    }
+
+  if (HP_TIMING_AVAIL)
+    putchar ('\n');
+}
+
+int
+test_main (void)
+{
+  size_t i;
+
+  test_init ();
+
+  printf ("%28s", "");
+  FOR_EACH_IMPL (impl, 0)
+    printf ("\t%s", impl->name);
+  putchar ('\n');
+
+  for (i = 0; i < 16; ++i)
+    {
+      do_test (0, 0, i, i, 127);
+      do_test (0, 0, i, i, 255);
+      do_test (0, i, i, i, 127);
+      do_test (i, 0, i, i, 255);
+    }
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (0, 0, 8 << i, 8 << i, 127);
+      do_test (8 - i, 2 * i, 8 << i, 8 << i, 127);
+      do_test (0, 0, 8 << i, 2 << i, 127);
+      do_test (8 - i, 2 * i, 8 << i, 2 << i, 127);
+    }
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (i, 2 * i, 8 << i, 1, 127);
+      do_test (2 * i, i, 8 << i, 1, 255);
+      do_test (i, i, 8 << i, 10, 127);
+      do_test (i, i, 8 << i, 10, 255);
+    }
+
+  return ret;
+}
+
+#include "../test-skeleton.c"
diff --git a/benchtests/bench-strchr-ifunc.c b/benchtests/bench-strchr-ifunc.c
new file mode 100644
index 0000000..0ef1398
--- /dev/null
+++ b/benchtests/bench-strchr-ifunc.c
@@ -0,0 +1,20 @@
+/* Measure IFUNC implementations of strchr function.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_IFUNC 1
+#include "bench-strchr.c"
diff --git a/benchtests/bench-strchr.c b/benchtests/bench-strchr.c
new file mode 100644
index 0000000..710b592
--- /dev/null
+++ b/benchtests/bench-strchr.c
@@ -0,0 +1,206 @@
+/* Measure STRCHR functions.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_MAIN
+#ifndef WIDE
+# ifdef USE_FOR_STRCHRNUL
+#  define TEST_NAME "strchrnul"
+# else
+#  define TEST_NAME "strchr"
+# endif
+#else
+# define TEST_NAME "wcschr"
+#endif
+#include "bench-string.h"
+
+#ifndef WIDE
+# ifdef USE_FOR_STRCHRNUL
+#  define STRCHR strchrnul
+#  define stupid_STRCHR stupid_STRCHRNUL
+#  define simple_STRCHR simple_STRCHRNUL
+# else
+#  define STRCHR strchr
+# endif
+# define STRLEN strlen
+# define CHAR char
+# define BIG_CHAR CHAR_MAX
+# define MIDDLE_CHAR 127
+# define SMALL_CHAR 23
+# define UCHAR unsigned char
+#else
+# include <wchar.h>
+# define STRCHR wcschr
+# define STRLEN wcslen
+# define CHAR wchar_t
+# define BIG_CHAR WCHAR_MAX
+# define MIDDLE_CHAR 1121
+# define SMALL_CHAR 851
+# define UCHAR wchar_t
+#endif
+
+#ifdef USE_FOR_STRCHRNUL
+# define NULLRET(endptr) endptr
+#else
+# define NULLRET(endptr) NULL
+#endif
+
+
+typedef CHAR *(*proto_t) (const CHAR *, int);
+
+CHAR *
+simple_STRCHR (const CHAR *s, int c)
+{
+  for (; *s != (CHAR) c; ++s)
+    if (*s == '\0')
+      return NULLRET ((CHAR *) s);
+  return (CHAR *) s;
+}
+
+CHAR *
+stupid_STRCHR (const CHAR *s, int c)
+{
+  size_t n = STRLEN (s) + 1;
+
+  while (n--)
+    if (*s++ == (CHAR) c)
+      return (CHAR *) s - 1;
+  return NULLRET ((CHAR *) s - 1);
+}
+
+IMPL (stupid_STRCHR, 0)
+IMPL (simple_STRCHR, 0)
+IMPL (STRCHR, 1)
+
+static void
+do_one_test (impl_t *impl, const CHAR *s, int c, const CHAR *exp_res)
+{
+  if (HP_TIMING_AVAIL)
+    {
+      hp_timing_t start __attribute ((unused));
+      hp_timing_t stop __attribute ((unused));
+      hp_timing_t best_time = ~ (hp_timing_t) 0;
+      size_t i;
+
+      for (i = 0; i < 32; ++i)
+	{
+	  HP_TIMING_NOW (start);
+	  CALL (impl, s, c);
+	  HP_TIMING_NOW (stop);
+	  HP_TIMING_BEST (best_time, start, stop);
+	}
+
+      printf ("\t%zd", (size_t) best_time);
+    }
+}
+
+static void
+do_test (size_t align, size_t pos, size_t len, int seek_char, int max_char)
+/* For wcschr: align here means align not in bytes,
+   but in wchar_ts, in bytes it will equal to align * (sizeof (wchar_t))
+   len for wcschr here isn't in bytes but it's number of wchar_t symbols.  */
+{
+  size_t i;
+  CHAR *result;
+  CHAR *buf = (CHAR *) buf1;
+  align &= 15;
+  if ((align + len) * sizeof (CHAR) >= page_size)
+    return;
+
+  for (i = 0; i < len; ++i)
+    {
+      buf[align + i] = 32 + 23 * i % max_char;
+      if (buf[align + i] == seek_char)
+	buf[align + i] = seek_char + 1;
+      else if (buf[align + i] == 0)
+	buf[align + i] = 1;
+    }
+  buf[align + len] = 0;
+
+  if (pos < len)
+    {
+      buf[align + pos] = seek_char;
+      result = buf + align + pos;
+    }
+  else if (seek_char == 0)
+    result = buf + align + len;
+  else
+    result = NULLRET (buf + align + len);
+
+  if (HP_TIMING_AVAIL)
+    printf ("Length %4zd, alignment in bytes %2zd:",
+	    pos, align * sizeof (CHAR));
+
+  FOR_EACH_IMPL (impl, 0)
+    do_one_test (impl, buf + align, seek_char, result);
+
+  if (HP_TIMING_AVAIL)
+    putchar ('\n');
+}
+
+int
+test_main (void)
+{
+  size_t i;
+
+  test_init ();
+
+  printf ("%20s", "");
+  FOR_EACH_IMPL (impl, 0)
+    printf ("\t%s", impl->name);
+  putchar ('\n');
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (0, 16 << i, 2048, SMALL_CHAR, MIDDLE_CHAR);
+      do_test (i, 16 << i, 2048, SMALL_CHAR, MIDDLE_CHAR);
+    }
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (i, 64, 256, SMALL_CHAR, MIDDLE_CHAR);
+      do_test (i, 64, 256, SMALL_CHAR, BIG_CHAR);
+    }
+
+  for (i = 0; i < 32; ++i)
+    {
+      do_test (0, i, i + 1, SMALL_CHAR, MIDDLE_CHAR);
+      do_test (0, i, i + 1, SMALL_CHAR, BIG_CHAR);
+    }
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (0, 16 << i, 2048, 0, MIDDLE_CHAR);
+      do_test (i, 16 << i, 2048, 0, MIDDLE_CHAR);
+    }
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (i, 64, 256, 0, MIDDLE_CHAR);
+      do_test (i, 64, 256, 0, BIG_CHAR);
+    }
+
+  for (i = 0; i < 32; ++i)
+    {
+      do_test (0, i, i + 1, 0, MIDDLE_CHAR);
+      do_test (0, i, i + 1, 0, BIG_CHAR);
+    }
+
+  return ret;
+}
+
+#include "../test-skeleton.c"
diff --git a/benchtests/bench-strchrnul-ifunc.c b/benchtests/bench-strchrnul-ifunc.c
new file mode 100644
index 0000000..35c7cb1
--- /dev/null
+++ b/benchtests/bench-strchrnul-ifunc.c
@@ -0,0 +1,20 @@
+/* Measure IFUNC implementations of strchrnul function.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_IFUNC 1
+#include "bench-strchrnul.c"
diff --git a/benchtests/bench-strchrnul.c b/benchtests/bench-strchrnul.c
new file mode 100644
index 0000000..db5680c
--- /dev/null
+++ b/benchtests/bench-strchrnul.c
@@ -0,0 +1,20 @@
+/* Measure strchrnul function.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define USE_FOR_STRCHRNUL 1
+#include "bench-strchr.c"
diff --git a/benchtests/bench-strcmp-ifunc.c b/benchtests/bench-strcmp-ifunc.c
new file mode 100644
index 0000000..01a8095
--- /dev/null
+++ b/benchtests/bench-strcmp-ifunc.c
@@ -0,0 +1,20 @@
+/* Measure IFUNC implementations of strcmp function.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_IFUNC 1
+#include "bench-strcmp.c"
diff --git a/benchtests/bench-strcmp.c b/benchtests/bench-strcmp.c
new file mode 100644
index 0000000..63a3cd4
--- /dev/null
+++ b/benchtests/bench-strcmp.c
@@ -0,0 +1,247 @@
+/* Measure strcmp and wcscmp functions.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_MAIN
+#ifdef WIDE
+# define TEST_NAME "wcscmp"
+#else
+# define TEST_NAME "strcmp"
+#endif
+#include "bench-string.h"
+
+#ifdef WIDE
+# include <wchar.h>
+
+# define L(str) L##str
+# define STRCMP wcscmp
+# define STRCPY wcscpy
+# define STRLEN wcslen
+# define MEMCPY wmemcpy
+# define SIMPLE_STRCMP simple_wcscmp
+# define STUPID_STRCMP stupid_wcscmp
+# define CHAR wchar_t
+# define UCHAR wchar_t
+# define CHARBYTES 4
+# define CHARBYTESLOG 2
+# define CHARALIGN __alignof__ (CHAR)
+# define MIDCHAR 0x7fffffff
+# define LARGECHAR 0xfffffffe
+# define CHAR__MAX WCHAR_MAX
+# define CHAR__MIN WCHAR_MIN
+
+/* Wcscmp uses signed semantics for comparison, not unsigned */
+/* Avoid using substraction since possible overflow */
+
+int
+simple_wcscmp (const wchar_t *s1, const wchar_t *s2)
+{
+  wchar_t c1, c2;
+  do
+    {
+      c1 = *s1++;
+      c2 = *s2++;
+      if (c2 == L'\0')
+      return c1 - c2;
+    }
+  while (c1 == c2);
+
+  return c1 < c2 ? -1 : 1;
+}
+
+int
+stupid_wcscmp (const wchar_t *s1, const wchar_t *s2)
+{
+  size_t ns1 = wcslen (s1) + 1;
+  size_t ns2 = wcslen (s2) + 1;
+  size_t n = ns1 < ns2 ? ns1 : ns2;
+  int ret = 0;
+
+  wchar_t c1, c2;
+
+  while (n--) {
+    c1 = *s1++;
+    c2 = *s2++;
+    if ((ret = c1 < c2 ? -1 : c1 == c2 ? 0 : 1) != 0)
+      break;
+  }
+  return ret;
+}
+
+#else
+# include <limits.h>
+
+# define L(str) str
+# define STRCMP strcmp
+# define STRCPY strcpy
+# define STRLEN strlen
+# define MEMCPY memcpy
+# define SIMPLE_STRCMP simple_strcmp
+# define STUPID_STRCMP stupid_strcmp
+# define CHAR char
+# define UCHAR unsigned char
+# define CHARBYTES 1
+# define CHARBYTESLOG 0
+# define CHARALIGN 1
+# define MIDCHAR 0x7f
+# define LARGECHAR 0xfe
+# define CHAR__MAX CHAR_MAX
+# define CHAR__MIN CHAR_MIN
+
+/* Strcmp uses unsigned semantics for comparison. */
+int
+simple_strcmp (const char *s1, const char *s2)
+{
+  int ret;
+
+  while ((ret = *(unsigned char *) s1 - *(unsigned char*) s2++) == 0 && *s1++);
+  return ret;
+}
+
+int
+stupid_strcmp (const char *s1, const char *s2)
+{
+  size_t ns1 = strlen (s1) + 1;
+  size_t ns2 = strlen (s2) + 1;
+  size_t n = ns1 < ns2 ? ns1 : ns2;
+  int ret = 0;
+
+  while (n--)
+    if ((ret = *(unsigned char *) s1++ - *(unsigned char *) s2++) != 0)
+      break;
+  return ret;
+}
+#endif
+
+typedef int (*proto_t) (const CHAR *, const CHAR *);
+
+IMPL (STUPID_STRCMP, 1)
+IMPL (SIMPLE_STRCMP, 1)
+IMPL (STRCMP, 1)
+
+static void
+do_one_test (impl_t *impl,
+	     const CHAR *s1, const CHAR *s2,
+	     int exp_result)
+{
+  if (HP_TIMING_AVAIL)
+    {
+      hp_timing_t start __attribute ((unused));
+      hp_timing_t stop __attribute ((unused));
+      hp_timing_t best_time = ~ (hp_timing_t) 0;
+      size_t i;
+
+      for (i = 0; i < 32; ++i)
+	{
+	  HP_TIMING_NOW (start);
+	  CALL (impl, s1, s2);
+	  HP_TIMING_NOW (stop);
+	  HP_TIMING_BEST (best_time, start, stop);
+	}
+
+      printf ("\t%zd", (size_t) best_time);
+    }
+}
+
+static void
+do_test (size_t align1, size_t align2, size_t len, int max_char,
+	 int exp_result)
+{
+  size_t i;
+
+  CHAR *s1, *s2;
+
+  if (len == 0)
+    return;
+
+  align1 &= 63;
+  if (align1 + (len + 1) * CHARBYTES >= page_size)
+    return;
+
+  align2 &= 63;
+  if (align2 + (len + 1) * CHARBYTES >= page_size)
+    return;
+
+  /* Put them close to the end of page.  */
+  i = align1 + CHARBYTES * (len + 2);
+  s1 = (CHAR *) (buf1 + ((page_size - i) / 16 * 16) + align1);
+  i = align2 + CHARBYTES * (len + 2);
+  s2 = (CHAR *) (buf2 + ((page_size - i) / 16 * 16)  + align2);
+
+  for (i = 0; i < len; i++)
+    s1[i] = s2[i] = 1 + (23 << ((CHARBYTES - 1) * 8)) * i % max_char;
+
+  s1[len] = s2[len] = 0;
+  s1[len + 1] = 23;
+  s2[len + 1] = 24 + exp_result;
+  s2[len - 1] -= exp_result;
+
+  if (HP_TIMING_AVAIL)
+    printf ("Length %4zd, alignment %2zd/%2zd:", len, align1, align2);
+
+  FOR_EACH_IMPL (impl, 0)
+    do_one_test (impl, s1, s2, exp_result);
+
+  if (HP_TIMING_AVAIL)
+    putchar ('\n');
+}
+
+int
+test_main (void)
+{
+  size_t i;
+
+  test_init ();
+
+  printf ("%23s", "");
+  FOR_EACH_IMPL (impl, 0)
+    printf ("\t%s", impl->name);
+  putchar ('\n');
+
+  for (i = 1; i < 32; ++i)
+    {
+      do_test (CHARBYTES * i, CHARBYTES * i, i, MIDCHAR, 0);
+      do_test (CHARBYTES * i, CHARBYTES * i, i, MIDCHAR, 1);
+      do_test (CHARBYTES * i, CHARBYTES * i, i, MIDCHAR, -1);
+    }
+
+  for (i = 1; i < 10 + CHARBYTESLOG; ++i)
+    {
+      do_test (0, 0, 2 << i, MIDCHAR, 0);
+      do_test (0, 0, 2 << i, LARGECHAR, 0);
+      do_test (0, 0, 2 << i, MIDCHAR, 1);
+      do_test (0, 0, 2 << i, LARGECHAR, 1);
+      do_test (0, 0, 2 << i, MIDCHAR, -1);
+      do_test (0, 0, 2 << i, LARGECHAR, -1);
+      do_test (0, CHARBYTES * i, 2 << i, MIDCHAR, 1);
+      do_test (CHARBYTES * i, CHARBYTES * (i + 1), 2 << i, LARGECHAR, 1);
+    }
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (CHARBYTES * i, 2 * CHARBYTES * i, 8 << i, MIDCHAR, 0);
+      do_test (2 * CHARBYTES * i, CHARBYTES * i, 8 << i, LARGECHAR, 0);
+      do_test (CHARBYTES * i, 2 * CHARBYTES * i, 8 << i, MIDCHAR, 1);
+      do_test (2 * CHARBYTES * i, CHARBYTES * i, 8 << i, LARGECHAR, 1);
+      do_test (CHARBYTES * i, 2 * CHARBYTES * i, 8 << i, MIDCHAR, -1);
+      do_test (2 * CHARBYTES * i, CHARBYTES * i, 8 << i, LARGECHAR, -1);
+    }
+
+  return ret;
+}
+
+#include "../test-skeleton.c"
diff --git a/benchtests/bench-strcpy-ifunc.c b/benchtests/bench-strcpy-ifunc.c
new file mode 100644
index 0000000..d27a4f9
--- /dev/null
+++ b/benchtests/bench-strcpy-ifunc.c
@@ -0,0 +1,20 @@
+/* Measure IFUNC implementations of strcpy function.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_IFUNC 1
+#include "bench-strcpy.c"
diff --git a/benchtests/bench-strcpy.c b/benchtests/bench-strcpy.c
new file mode 100644
index 0000000..4e024d4
--- /dev/null
+++ b/benchtests/bench-strcpy.c
@@ -0,0 +1,183 @@
+/* Measure strcpy functions.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifdef WIDE
+# include <wchar.h>
+# define CHAR wchar_t
+# define UCHAR wchar_t
+# define sfmt "ls"
+# define BIG_CHAR WCHAR_MAX
+# define SMALL_CHAR 1273
+# define STRCMP wcscmp
+# define MEMCMP wmemcmp
+# define MEMSET wmemset
+#else
+# define CHAR char
+# define UCHAR unsigned char
+# define sfmt "s"
+# define BIG_CHAR CHAR_MAX
+# define SMALL_CHAR 127
+# define STRCMP strcmp
+# define MEMCMP memcmp
+# define MEMSET memset
+#endif
+
+#ifndef STRCPY_RESULT
+# define STRCPY_RESULT(dst, len) dst
+# define TEST_MAIN
+# ifndef WIDE
+#  define TEST_NAME "strcpy"
+# else
+#  define TEST_NAME "wcscpy"
+# endif
+# include "bench-string.h"
+# ifndef WIDE
+#  define SIMPLE_STRCPY simple_strcpy
+#  define STRCPY strcpy
+# else
+#  define SIMPLE_STRCPY simple_wcscpy
+#  define STRCPY wcscpy
+# endif
+
+CHAR *SIMPLE_STRCPY (CHAR *, const CHAR *);
+
+IMPL (SIMPLE_STRCPY, 0)
+IMPL (STRCPY, 1)
+
+CHAR *
+SIMPLE_STRCPY (CHAR *dst, const CHAR *src)
+{
+  CHAR *ret = dst;
+  while ((*dst++ = *src++) != '\0');
+  return ret;
+}
+#endif
+
+typedef CHAR *(*proto_t) (CHAR *, const CHAR *);
+
+static void
+do_one_test (impl_t *impl, CHAR *dst, const CHAR *src,
+	     size_t len __attribute__((unused)))
+{
+  if (CALL (impl, dst, src) != STRCPY_RESULT (dst, len))
+    {
+      error (0, 0, "Wrong result in function %s %p %p", impl->name,
+	     CALL (impl, dst, src), STRCPY_RESULT (dst, len));
+      ret = 1;
+      return;
+    }
+
+  if (STRCMP (dst, src) != 0)
+    {
+      error (0, 0,
+	     "Wrong result in function %s dst \"%" sfmt "\" src \"%" sfmt "\"",
+	     impl->name, dst, src);
+      ret = 1;
+      return;
+    }
+
+  if (HP_TIMING_AVAIL)
+    {
+      hp_timing_t start __attribute ((unused));
+      hp_timing_t stop __attribute ((unused));;
+      hp_timing_t best_time = ~ (hp_timing_t) 0;
+      size_t i;
+
+      for (i = 0; i < 32; ++i)
+	{
+	  HP_TIMING_NOW (start);
+	  CALL (impl, dst, src);
+	  HP_TIMING_NOW (stop);
+	  HP_TIMING_BEST (best_time, start, stop);
+	}
+
+      printf ("\t%zd", (size_t) best_time);
+    }
+}
+
+static void
+do_test (size_t align1, size_t align2, size_t len, int max_char)
+{
+  size_t i;
+  CHAR *s1, *s2;
+/* For wcscpy: align1 and align2 here mean alignment not in bytes,
+   but in wchar_ts, in bytes it will equal to align * (sizeof (wchar_t))
+   len for wcschr here isn't in bytes but it's number of wchar_t symbols.  */
+  align1 &= 7;
+  if ((align1 + len) * sizeof(CHAR) >= page_size)
+    return;
+
+  align2 &= 7;
+  if ((align2 + len) * sizeof(CHAR) >= page_size)
+    return;
+
+  s1 = (CHAR *) (buf1) + align1;
+  s2 = (CHAR *) (buf2) + align2;
+
+  for (i = 0; i < len; i++)
+    s1[i] = 32 + 23 * i % (max_char - 32);
+  s1[len] = 0;
+
+  if (HP_TIMING_AVAIL)
+    printf ("Length %4zd, alignments in bytes %2zd/%2zd:", len, align1 * sizeof(CHAR), align2 * sizeof(CHAR));
+
+  FOR_EACH_IMPL (impl, 0)
+    do_one_test (impl, s2, s1, len);
+
+  if (HP_TIMING_AVAIL)
+    putchar ('\n');
+}
+
+int
+test_main (void)
+{
+  size_t i;
+
+  test_init ();
+
+  printf ("%23s", "");
+  FOR_EACH_IMPL (impl, 0)
+    printf ("\t%s", impl->name);
+  putchar ('\n');
+
+  for (i = 0; i < 16; ++i)
+    {
+      do_test (0, 0, i, SMALL_CHAR);
+      do_test (0, 0, i, BIG_CHAR);
+      do_test (0, i, i, SMALL_CHAR);
+      do_test (i, 0, i, BIG_CHAR);
+    }
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (0, 0, 8 << i, SMALL_CHAR);
+      do_test (8 - i, 2 * i, 8 << i, SMALL_CHAR);
+    }
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (i, 2 * i, 8 << i, SMALL_CHAR);
+      do_test (2 * i, i, 8 << i, BIG_CHAR);
+      do_test (i, i, 8 << i, SMALL_CHAR);
+      do_test (i, i, 8 << i, BIG_CHAR);
+    }
+
+  return ret;
+}
+
+#include "../test-skeleton.c"
diff --git a/benchtests/bench-strcspn-ifunc.c b/benchtests/bench-strcspn-ifunc.c
new file mode 100644
index 0000000..e257c9b
--- /dev/null
+++ b/benchtests/bench-strcspn-ifunc.c
@@ -0,0 +1,20 @@
+/* Measure IFUNC implementations of strcspn function.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_IFUNC 1
+#include "bench-strcspn.c"
diff --git a/benchtests/bench-strcspn.c b/benchtests/bench-strcspn.c
new file mode 100644
index 0000000..22b3b84
--- /dev/null
+++ b/benchtests/bench-strcspn.c
@@ -0,0 +1,59 @@
+/* Measure strcspn functions.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define STRPBRK_RESULT(s, pos) (pos)
+#define RES_TYPE size_t
+#define TEST_MAIN
+#define TEST_NAME "strcspn"
+#include "bench-string.h"
+
+typedef size_t (*proto_t) (const char *, const char *);
+size_t simple_strcspn (const char *, const char *);
+size_t stupid_strcspn (const char *, const char *);
+
+IMPL (stupid_strcspn, 0)
+IMPL (simple_strcspn, 0)
+IMPL (strcspn, 1)
+
+size_t
+simple_strcspn (const char *s, const char *rej)
+{
+  const char *r, *str = s;
+  char c;
+
+  while ((c = *s++) != '\0')
+    for (r = rej; *r != '\0'; ++r)
+      if (*r == c)
+	return s - str - 1;
+  return s - str - 1;
+}
+
+size_t
+stupid_strcspn (const char *s, const char *rej)
+{
+  size_t ns = strlen (s), nrej = strlen (rej);
+  size_t i, j;
+
+  for (i = 0; i < ns; ++i)
+    for (j = 0; j < nrej; ++j)
+      if (s[i] == rej[j])
+	return i;
+  return i;
+}
+
+#include "bench-strpbrk.c"
diff --git a/benchtests/bench-strlen-ifunc.c b/benchtests/bench-strlen-ifunc.c
new file mode 100644
index 0000000..fcd4592
--- /dev/null
+++ b/benchtests/bench-strlen-ifunc.c
@@ -0,0 +1,20 @@
+/* Measure IFUNC implementations of strlen function.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_IFUNC 1
+#include "bench-strlen.c"
diff --git a/benchtests/bench-strlen.c b/benchtests/bench-strlen.c
new file mode 100644
index 0000000..63b1e93
--- /dev/null
+++ b/benchtests/bench-strlen.c
@@ -0,0 +1,149 @@
+/* Measure STRLEN functions.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_MAIN
+#ifndef WIDE
+# define TEST_NAME "strlen"
+#else
+# define TEST_NAME "wcslen"
+#endif
+#include "bench-string.h"
+
+#ifndef WIDE
+# define STRLEN strlen
+# define CHAR char
+# define MAX_CHAR CHAR_MAX
+#else
+# include <wchar.h>
+# define STRLEN wcslen
+# define CHAR wchar_t
+# define MAX_CHAR WCHAR_MAX
+#endif
+
+typedef size_t (*proto_t) (const CHAR *);
+
+size_t
+simple_STRLEN (const CHAR *s)
+{
+  const CHAR *p;
+
+  for (p = s; *p; ++p);
+  return p - s;
+}
+
+#ifndef WIDE
+size_t
+builtin_strlen (const CHAR *p)
+{
+  return __builtin_strlen (p);
+}
+IMPL (builtin_strlen, 0)
+#endif
+
+IMPL (simple_STRLEN, 0)
+IMPL (STRLEN, 1)
+
+
+static void
+do_one_test (impl_t *impl, const CHAR *s, size_t exp_len)
+{
+  size_t len = CALL (impl, s);
+  if (len != exp_len)
+    {
+      error (0, 0, "Wrong result in function %s %zd %zd", impl->name,
+	     len, exp_len);
+      ret = 1;
+      return;
+    }
+
+  if (HP_TIMING_AVAIL)
+    {
+      hp_timing_t start __attribute ((unused));
+      hp_timing_t stop __attribute ((unused));
+      hp_timing_t best_time = ~ (hp_timing_t) 0;
+      size_t i;
+
+      for (i = 0; i < 32; ++i)
+	{
+	  HP_TIMING_NOW (start);
+	  CALL (impl, s);
+	  HP_TIMING_NOW (stop);
+	  HP_TIMING_BEST (best_time, start, stop);
+	}
+
+      printf ("\t%zd", (size_t) best_time);
+    }
+}
+
+static void
+do_test (size_t align, size_t len)
+{
+  size_t i;
+
+  align &= 63;
+  if (align + sizeof(CHAR) * len >= page_size)
+    return;
+
+  CHAR *buf = (CHAR *) (buf1);
+
+  for (i = 0; i < len; ++i)
+    buf[align + i] = 1 + 11111 * i % MAX_CHAR;
+  buf[align + len] = 0;
+
+  if (HP_TIMING_AVAIL)
+    printf ("Length %4zd, alignment %2zd:", len, align);
+
+  FOR_EACH_IMPL (impl, 0)
+    do_one_test (impl, (CHAR *) (buf + align), len);
+
+  if (HP_TIMING_AVAIL)
+    putchar ('\n');
+}
+
+int
+test_main (void)
+{
+  size_t i;
+
+  test_init ();
+
+  printf ("%20s", "");
+  FOR_EACH_IMPL (impl, 0)
+    printf ("\t%s", impl->name);
+  putchar ('\n');
+
+  /* Checking with only 4 * N alignments for wcslen, other alignments are wrong for wchar_t type arrays*/
+
+  for (i = 1; i < 8; ++i)
+  {
+    do_test (sizeof(CHAR) * i, i);
+    do_test (0, i);
+  }
+
+  for (i = 2; i <= 12; ++i)
+    {
+      do_test (0, 1 << i);
+      do_test (sizeof(CHAR) * 7, 1 << i);
+      do_test (sizeof(CHAR) * i, 1 << i);
+      do_test (sizeof(CHAR) * i, (size_t)((1 << i) / 1.5));
+    }
+
+  return ret;
+}
+
+#include "../test-skeleton.c"
diff --git a/benchtests/bench-strncasecmp-ifunc.c b/benchtests/bench-strncasecmp-ifunc.c
new file mode 100644
index 0000000..df796e2
--- /dev/null
+++ b/benchtests/bench-strncasecmp-ifunc.c
@@ -0,0 +1,20 @@
+/* Measure IFUNC implementations of strncasecmp function.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_IFUNC 1
+#include "bench-strncasecmp.c"
diff --git a/benchtests/bench-strncasecmp.c b/benchtests/bench-strncasecmp.c
new file mode 100644
index 0000000..5fa9220
--- /dev/null
+++ b/benchtests/bench-strncasecmp.c
@@ -0,0 +1,213 @@
+/* Measure strncasecmp functions.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <ctype.h>
+#define TEST_MAIN
+#define TEST_NAME "strncasecmp"
+#include "bench-string.h"
+
+typedef int (*proto_t) (const char *, const char *, size_t);
+static int simple_strncasecmp (const char *, const char *, size_t);
+static int stupid_strncasecmp (const char *, const char *, size_t);
+
+IMPL (stupid_strncasecmp, 0)
+IMPL (simple_strncasecmp, 0)
+IMPL (strncasecmp, 1)
+
+static int
+simple_strncasecmp (const char *s1, const char *s2, size_t n)
+{
+  int ret;
+
+  if (n == 0)
+    return 0;
+
+  while ((ret = ((unsigned char) tolower (*s1)
+		 - (unsigned char) tolower (*s2))) == 0
+	 && *s1++)
+    {
+      if (--n == 0)
+	return 0;
+      ++s2;
+    }
+  return ret;
+}
+
+static int
+stupid_strncasecmp (const char *s1, const char *s2, size_t max)
+{
+  size_t ns1 = strlen (s1) + 1;
+  size_t ns2 = strlen (s2) + 1;
+  size_t n = ns1 < ns2 ? ns1 : ns2;
+  if (n > max)
+    n = max;
+  int ret = 0;
+
+  while (n--)
+    {
+      if ((ret = ((unsigned char) tolower (*s1)
+		  - (unsigned char) tolower (*s2))) != 0)
+	break;
+      ++s1;
+      ++s2;
+    }
+  return ret;
+}
+
+static void
+do_one_test (impl_t *impl, const char *s1, const char *s2, size_t n,
+	     int exp_result)
+{
+  if (HP_TIMING_AVAIL)
+    {
+      hp_timing_t start __attribute ((unused));
+      hp_timing_t stop __attribute ((unused));
+      hp_timing_t best_time = ~ (hp_timing_t) 0;
+      size_t i;
+
+      for (i = 0; i < 32; ++i)
+	{
+	  HP_TIMING_NOW (start);
+	  CALL (impl, s1, s2, n);
+	  HP_TIMING_NOW (stop);
+	  HP_TIMING_BEST (best_time, start, stop);
+	}
+
+      printf ("\t%zd", (size_t) best_time);
+    }
+}
+
+static void
+do_test (size_t align1, size_t align2, size_t n, size_t len, int max_char,
+	 int exp_result)
+{
+  size_t i;
+  char *s1, *s2;
+
+  if (len == 0)
+    return;
+
+  align1 &= 7;
+  if (align1 + len + 1 >= page_size)
+    return;
+
+  align2 &= 7;
+  if (align2 + len + 1 >= page_size)
+    return;
+
+  s1 = (char *) (buf1 + align1);
+  s2 = (char *) (buf2 + align2);
+
+  for (i = 0; i < len; i++)
+    {
+      s1[i] = toupper (1 + 23 * i % max_char);
+      s2[i] = tolower (s1[i]);
+    }
+
+  s1[len] = s2[len] = 0;
+  s1[len + 1] = 23;
+  s2[len + 1] = 24 + exp_result;
+  if ((s2[len - 1] == 'z' && exp_result == -1)
+      || (s2[len - 1] == 'a' && exp_result == 1))
+    s1[len - 1] += exp_result;
+  else
+    s2[len - 1] -= exp_result;
+
+  if (HP_TIMING_AVAIL)
+    printf ("Length %4zd, alignment %2zd/%2zd:", len, align1, align2);
+
+  FOR_EACH_IMPL (impl, 0)
+    do_one_test (impl, s1, s2, n, exp_result);
+
+  if (HP_TIMING_AVAIL)
+    putchar ('\n');
+}
+
+int
+test_main (void)
+{
+  size_t i;
+
+  test_init ();
+
+  printf ("%23s", "");
+  FOR_EACH_IMPL (impl, 0)
+    printf ("\t%s", impl->name);
+  putchar ('\n');
+
+  for (i = 1; i < 16; ++i)
+    {
+      do_test (i, i, i - 1, i, 127, 0);
+
+      do_test (i, i, i, i, 127, 0);
+      do_test (i, i, i, i, 127, 1);
+      do_test (i, i, i, i, 127, -1);
+
+      do_test (i, i, i + 1, i, 127, 0);
+      do_test (i, i, i + 1, i, 127, 1);
+      do_test (i, i, i + 1, i, 127, -1);
+    }
+
+  for (i = 1; i < 10; ++i)
+    {
+      do_test (0, 0, (2 << i) - 1, 2 << i, 127, 0);
+      do_test (0, 0, 2 << i, 2 << i, 254, 0);
+      do_test (0, 0, (2 << i) + 1, 2 << i, 127, 0);
+
+      do_test (0, 0, (2 << i) + 1, 2 << i, 254, 0);
+
+      do_test (0, 0, 2 << i, 2 << i, 127, 1);
+      do_test (0, 0, (2 << i) + 10, 2 << i, 127, 1);
+
+      do_test (0, 0, 2 << i, 2 << i, 254, 1);
+      do_test (0, 0, (2 << i) + 10, 2 << i, 254, 1);
+
+      do_test (0, 0, 2 << i, 2 << i, 127, -1);
+      do_test (0, 0, (2 << i) + 10, 2 << i, 127, -1);
+
+      do_test (0, 0, 2 << i, 2 << i, 254, -1);
+      do_test (0, 0, (2 << i) + 10, 2 << i, 254, -1);
+    }
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (i, 2 * i, (8 << i) - 1, 8 << i, 127, 0);
+      do_test (i, 2 * i, 8 << i, 8 << i, 127, 0);
+      do_test (i, 2 * i, (8 << i) + 100, 8 << i, 127, 0);
+
+      do_test (2 * i, i, (8 << i) - 1, 8 << i, 254, 0);
+      do_test (2 * i, i, 8 << i, 8 << i, 254, 0);
+      do_test (2 * i, i, (8 << i) + 100, 8 << i, 254, 0);
+
+      do_test (i, 2 * i, 8 << i, 8 << i, 127, 1);
+      do_test (i, 2 * i, (8 << i) + 100, 8 << i, 127, 1);
+
+      do_test (2 * i, i, 8 << i, 8 << i, 254, 1);
+      do_test (2 * i, i, (8 << i) + 100, 8 << i, 254, 1);
+
+      do_test (i, 2 * i, 8 << i, 8 << i, 127, -1);
+      do_test (i, 2 * i, (8 << i) + 100, 8 << i, 127, -1);
+
+      do_test (2 * i, i, 8 << i, 8 << i, 254, -1);
+      do_test (2 * i, i, (8 << i) + 100, 8 << i, 254, -1);
+    }
+
+  return ret;
+}
+
+#include "../test-skeleton.c"
diff --git a/benchtests/bench-strncat-ifunc.c b/benchtests/bench-strncat-ifunc.c
new file mode 100644
index 0000000..adcfd22
--- /dev/null
+++ b/benchtests/bench-strncat-ifunc.c
@@ -0,0 +1,20 @@
+/* Measure IFUNC implementations of strncat function.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_IFUNC 1
+#include "bench-strncat.c"
diff --git a/benchtests/bench-strncat.c b/benchtests/bench-strncat.c
new file mode 100644
index 0000000..904daa7
--- /dev/null
+++ b/benchtests/bench-strncat.c
@@ -0,0 +1,168 @@
+/* Measure strncat functions.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_MAIN
+#define TEST_NAME "strncat"
+#include "bench-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);
+
+IMPL (stupid_strncat, 0)
+IMPL (strncat, 2)
+
+char *
+stupid_strncat (char *dst, const char *src, size_t n)
+{
+  char *ret = dst;
+  while (*dst++ != '\0');
+  --dst;
+  while (n--)
+    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)
+{
+  size_t k = strlen (dst);
+  if (CALL (impl, dst, src, n) != dst)
+    {
+      error (0, 0, "Wrong result in function %s %p != %p", impl->name,
+	     CALL (impl, dst, src, n), dst);
+      ret = 1;
+      return;
+    }
+
+  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",
+	     impl->name);
+      ret = 1;
+      return;
+    }
+  if (n < len && dst[k + n] != '\0')
+    {
+      error (0, 0, "There is no zero in the end of output string in %s",
+	     impl->name);
+      ret = 1;
+      return;
+    }
+  if (HP_TIMING_AVAIL)
+    {
+      hp_timing_t start __attribute ((unused));
+      hp_timing_t stop __attribute ((unused));
+      hp_timing_t best_time = ~ (hp_timing_t) 0;
+      size_t i;
+
+      for (i = 0; i < 32; ++i)
+	{
+	  dst[k] = '\0';
+	  HP_TIMING_NOW (start);
+	  CALL (impl, dst, src, n);
+	  HP_TIMING_NOW (stop);
+	  HP_TIMING_BEST (best_time, start, stop);
+	}
+
+      printf ("\t%zd", (size_t) best_time);
+    }
+}
+
+static void
+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;
+
+  align1 &= 7;
+  if (align1 + len1 >= page_size)
+    return;
+  if (align1 + n > page_size)
+    return;
+  align2 &= 7;
+  if (align2 + len1 + len2 >= page_size)
+    return;
+  if (align2 + len1 + n > page_size)
+    return;
+  s1 = (char *) (buf1 + align1);
+  s2 = (char *) (buf2 + align2);
+
+  for (i = 0; i < len1; ++i)
+    s1[i] = 32 + 23 * i % (max_char - 32);
+  s1[len1] = '\0';
+
+  for (i = 0; i < len2; i++)
+    s2[i] = 32 + 23 * i % (max_char - 32);
+
+  if (HP_TIMING_AVAIL)
+    printf ("Length %4zd/%4zd, alignment %2zd/%2zd, N %4zd:",
+	    len1, len2, align1, align2, n);
+
+  FOR_EACH_IMPL (impl, 0)
+    {
+      s2[len2] = '\0';
+      do_one_test (impl, s2, s1, n);
+    }
+
+  if (HP_TIMING_AVAIL)
+    putchar ('\n');
+}
+
+int
+main (void)
+{
+  size_t i, n;
+
+  test_init ();
+
+  printf ("%28s", "");
+  FOR_EACH_IMPL (impl, 0)
+    printf ("\t%s", impl->name);
+  putchar ('\n');
+
+  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);
+
+      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);
+	}
+
+      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);
+	}
+    }
+
+  return ret;
+}
diff --git a/benchtests/bench-strncmp-ifunc.c b/benchtests/bench-strncmp-ifunc.c
new file mode 100644
index 0000000..1cae32b
--- /dev/null
+++ b/benchtests/bench-strncmp-ifunc.c
@@ -0,0 +1,20 @@
+/* Measure IFUNC implementations of strncmp function.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_IFUNC 1
+#include "bench-strncmp.c"
diff --git a/benchtests/bench-strncmp.c b/benchtests/bench-strncmp.c
new file mode 100644
index 0000000..b3af0f9
--- /dev/null
+++ b/benchtests/bench-strncmp.c
@@ -0,0 +1,249 @@
+/* Measure strncmp functions.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_MAIN
+#define TEST_NAME "strncmp"
+#include "bench-string.h"
+
+typedef int (*proto_t) (const char *, const char *, size_t);
+int simple_strncmp (const char *, const char *, size_t);
+int stupid_strncmp (const char *, const char *, size_t);
+
+IMPL (stupid_strncmp, 0)
+IMPL (simple_strncmp, 0)
+IMPL (strncmp, 1)
+
+int
+simple_strncmp (const char *s1, const char *s2, size_t n)
+{
+  int ret = 0;
+
+  while (n-- && (ret = *(unsigned char *) s1 - * (unsigned char *) s2++) == 0
+	 && *s1++);
+  return ret;
+}
+
+int
+stupid_strncmp (const char *s1, const char *s2, size_t n)
+{
+  size_t ns1 = strnlen (s1, n) + 1, ns2 = strnlen (s2, n) + 1;
+  int ret = 0;
+
+  n = ns1 < n ? ns1 : n;
+  n = ns2 < n ? ns2 : n;
+  while (n-- && (ret = *(unsigned char *) s1++ - * (unsigned char *) s2++) == 0);
+  return ret;
+}
+
+static void
+do_one_test (impl_t *impl, const char *s1, const char *s2, size_t n,
+	     int exp_result)
+{
+  if (HP_TIMING_AVAIL)
+    {
+      hp_timing_t start __attribute ((unused));
+      hp_timing_t stop __attribute ((unused));
+      hp_timing_t best_time = ~ (hp_timing_t) 0;
+      size_t i;
+
+      for (i = 0; i < 32; ++i)
+	{
+	  HP_TIMING_NOW (start);
+	  CALL (impl, s1, s2, n);
+	  HP_TIMING_NOW (stop);
+	  HP_TIMING_BEST (best_time, start, stop);
+	}
+
+      printf ("\t%zd", (size_t) best_time);
+    }
+}
+
+static void
+do_test_limit (size_t align1, size_t align2, size_t len, size_t n, int max_char,
+	 int exp_result)
+{
+  size_t i, align_n;
+  char *s1, *s2;
+
+  if (n == 0)
+    {
+      s1 = (char*)(buf1 + page_size);
+      s2 = (char*)(buf2 + page_size);
+      if (HP_TIMING_AVAIL)
+	printf ("Length %4zd/%4zd:", len, n);
+
+      FOR_EACH_IMPL (impl, 0)
+	do_one_test (impl, s1, s2, n, 0);
+
+      if (HP_TIMING_AVAIL)
+	putchar ('\n');
+
+      return;
+    }
+
+  align1 &= 15;
+  align2 &= 15;
+  align_n = (page_size - n) & 15;
+
+  s1 = (char*)(buf1 + page_size - n);
+  s2 = (char*)(buf2 + page_size - n);
+
+  if (align1 < align_n)
+    s1 -= (align_n - align1);
+
+  if (align2 < align_n)
+    s2 -= (align_n - align2);
+
+  for (i = 0; i < n; i++)
+    s1[i] = s2[i] = 1 + 23 * i % max_char;
+
+  if (len < n)
+    {
+      s1[len] = 0;
+      s2[len] = 0;
+      if (exp_result < 0)
+	s2[len] = 32;
+      else if (exp_result > 0)
+	s1[len] = 64;
+    }
+
+  if (HP_TIMING_AVAIL)
+    printf ("Length %4zd/%4zd, alignment %2zd/%2zd:", len, n, align1, align2);
+
+  FOR_EACH_IMPL (impl, 0)
+    do_one_test (impl, s1, s2, n, exp_result);
+
+  if (HP_TIMING_AVAIL)
+    putchar ('\n');
+}
+
+static void
+do_test (size_t align1, size_t align2, size_t len, size_t n, int max_char,
+	 int exp_result)
+{
+  size_t i;
+  char *s1, *s2;
+
+  if (n == 0)
+    return;
+
+  align1 &= 7;
+  if (align1 + n + 1 >= page_size)
+    return;
+
+  align2 &= 7;
+  if (align2 + n + 1 >= page_size)
+    return;
+
+  s1 = (char*)(buf1 + align1);
+  s2 = (char*)(buf2 + align2);
+
+  for (i = 0; i < n; i++)
+    s1[i] = s2[i] = 1 + 23 * i % max_char;
+
+  s1[n] = 24 + exp_result;
+  s2[n] = 23;
+  s1[len] = 0;
+  s2[len] = 0;
+  if (exp_result < 0)
+    s2[len] = 32;
+  else if (exp_result > 0)
+    s1[len] = 64;
+  if (len >= n)
+    s2[n - 1] -= exp_result;
+
+  if (HP_TIMING_AVAIL)
+    printf ("Length %4zd/%4zd, alignment %2zd/%2zd:", len, n, align1, align2);
+
+  FOR_EACH_IMPL (impl, 0)
+    do_one_test (impl, (char*)s1, (char*)s2, n, exp_result);
+
+  if (HP_TIMING_AVAIL)
+    putchar ('\n');
+}
+
+int
+test_main (void)
+{
+  size_t i;
+
+  test_init ();
+
+  printf ("%23s", "");
+  FOR_EACH_IMPL (impl, 0)
+    printf ("\t%s", impl->name);
+  putchar ('\n');
+
+  for (i =0; i < 16; ++i)
+    {
+      do_test (0, 0, 8, i, 127, 0);
+      do_test (0, 0, 8, i, 127, -1);
+      do_test (0, 0, 8, i, 127, 1);
+      do_test (i, i, 8, i, 127, 0);
+      do_test (i, i, 8, i, 127, 1);
+      do_test (i, i, 8, i, 127, -1);
+      do_test (i, 2 * i, 8, i, 127, 0);
+      do_test (2 * i, i, 8, i, 127, 1);
+      do_test (i, 3 * i, 8, i, 127, -1);
+      do_test (0, 0, 8, i, 255, 0);
+      do_test (0, 0, 8, i, 255, -1);
+      do_test (0, 0, 8, i, 255, 1);
+      do_test (i, i, 8, i, 255, 0);
+      do_test (i, i, 8, i, 255, 1);
+      do_test (i, i, 8, i, 255, -1);
+      do_test (i, 2 * i, 8, i, 255, 0);
+      do_test (2 * i, i, 8, i, 255, 1);
+      do_test (i, 3 * i, 8, i, 255, -1);
+    }
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (0, 0, 8 << i, 16 << i, 127, 0);
+      do_test (0, 0, 8 << i, 16 << i, 127, 1);
+      do_test (0, 0, 8 << i, 16 << i, 127, -1);
+      do_test (0, 0, 8 << i, 16 << i, 255, 0);
+      do_test (0, 0, 8 << i, 16 << i, 255, 1);
+      do_test (0, 0, 8 << i, 16 << i, 255, -1);
+      do_test (8 - i, 2 * i, 8 << i, 16 << i, 127, 0);
+      do_test (8 - i, 2 * i, 8 << i, 16 << i, 127, 1);
+      do_test (2 * i, i, 8 << i, 16 << i, 255, 0);
+      do_test (2 * i, i, 8 << i, 16 << i, 255, 1);
+    }
+
+  do_test_limit (0, 0, 0, 0, 127, 0);
+  do_test_limit (4, 0, 21, 20, 127, 0);
+  do_test_limit (0, 4, 21, 20, 127, 0);
+  do_test_limit (8, 0, 25, 24, 127, 0);
+  do_test_limit (0, 8, 25, 24, 127, 0);
+
+  for (i = 0; i < 8; ++i)
+    {
+      do_test_limit (0, 0, 17 - i, 16 - i, 127, 0);
+      do_test_limit (0, 0, 17 - i, 16 - i, 255, 0);
+      do_test_limit (0, 0, 15 - i, 16 - i, 127, 0);
+      do_test_limit (0, 0, 15 - i, 16 - i, 127, 1);
+      do_test_limit (0, 0, 15 - i, 16 - i, 127, -1);
+      do_test_limit (0, 0, 15 - i, 16 - i, 255, 0);
+      do_test_limit (0, 0, 15 - i, 16 - i, 255, 1);
+      do_test_limit (0, 0, 15 - i, 16 - i, 255, -1);
+    }
+
+  return ret;
+}
+
+#include "../test-skeleton.c"
diff --git a/benchtests/bench-strncpy-ifunc.c b/benchtests/bench-strncpy-ifunc.c
new file mode 100644
index 0000000..d4eebe6
--- /dev/null
+++ b/benchtests/bench-strncpy-ifunc.c
@@ -0,0 +1,20 @@
+/* Measure IFUNC implementations of strncpy function.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_IFUNC 1
+#include "bench-strncpy.c"
diff --git a/benchtests/bench-strncpy.c b/benchtests/bench-strncpy.c
new file mode 100644
index 0000000..4065c0a
--- /dev/null
+++ b/benchtests/bench-strncpy.c
@@ -0,0 +1,180 @@
+/* Measure strncpy functions.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef STRNCPY_RESULT
+# define STRNCPY_RESULT(dst, len, n) dst
+# define TEST_MAIN
+# define TEST_NAME "strncpy"
+# include "bench-string.h"
+
+char *simple_strncpy (char *, const char *, size_t);
+char *stupid_strncpy (char *, const char *, size_t);
+
+IMPL (stupid_strncpy, 0)
+IMPL (simple_strncpy, 0)
+IMPL (strncpy, 1)
+
+char *
+simple_strncpy (char *dst, const char *src, size_t n)
+{
+  char *ret = dst;
+  while (n--)
+    if ((*dst++ = *src++) == '\0')
+      {
+	while (n--)
+	  *dst++ = '\0';
+	return ret;
+      }
+  return ret;
+}
+
+char *
+stupid_strncpy (char *dst, const char *src, size_t n)
+{
+  size_t nc = strnlen (src, n);
+  size_t i;
+
+  for (i = 0; i < nc; ++i)
+    dst[i] = src[i];
+  for (; i < n; ++i)
+    dst[i] = '\0';
+  return dst;
+}
+#endif
+
+typedef char *(*proto_t) (char *, const char *, size_t);
+
+static void
+do_one_test (impl_t *impl, char *dst, const char *src, size_t len, size_t n)
+{
+  if (CALL (impl, dst, src, n) != STRNCPY_RESULT (dst, len, n))
+    {
+      error (0, 0, "Wrong result in function %s %p %p", impl->name,
+	     CALL (impl, dst, src, n), dst);
+      ret = 1;
+      return;
+    }
+
+  if (memcmp (dst, src, len > n ? n : len) != 0)
+    {
+      error (0, 0, "Wrong result in function %s", impl->name);
+      ret = 1;
+      return;
+    }
+
+  if (n > len)
+    {
+      size_t i;
+
+      for (i = len; i < n; ++i)
+	if (dst [i] != '\0')
+	  {
+	    error (0, 0, "Wrong result in function %s", impl->name);
+	    ret = 1;
+	    return;
+	  }
+    }
+
+  if (HP_TIMING_AVAIL)
+    {
+      hp_timing_t start __attribute__ ((unused));
+      hp_timing_t stop __attribute__ ((unused));
+      hp_timing_t best_time = ~ (hp_timing_t) 0;
+      size_t i;
+
+      for (i = 0; i < 32; ++i)
+	{
+	  HP_TIMING_NOW (start);
+	  CALL (impl, dst, src, n);
+	  HP_TIMING_NOW (stop);
+	  HP_TIMING_BEST (best_time, start, stop);
+	}
+
+      printf ("\t%zd", (size_t) best_time);
+    }
+}
+
+static void
+do_test (size_t align1, size_t align2, size_t len, size_t n, int max_char)
+{
+  size_t i;
+  char *s1, *s2;
+
+  align1 &= 7;
+  if (align1 + len >= page_size)
+    return;
+
+  align2 &= 7;
+  if (align2 + len >= page_size)
+    return;
+
+  s1 = (char *) (buf1 + align1);
+  s2 = (char *) (buf2 + align2);
+
+  for (i = 0; i < len; ++i)
+    s1[i] = 32 + 23 * i % (max_char - 32);
+  s1[len] = 0;
+  for (i = len + 1; i + align1 < page_size && i < len + 64; ++i)
+    s1[i] = 32 + 32 * i % (max_char - 32);
+
+  if (HP_TIMING_AVAIL)
+    printf ("Length %4zd, n %4zd, alignment %2zd/%2zd:", len, n, align1, align2);
+
+  FOR_EACH_IMPL (impl, 0)
+    do_one_test (impl, s2, s1, len, n);
+
+  if (HP_TIMING_AVAIL)
+    putchar ('\n');
+}
+
+int
+test_main (void)
+{
+  size_t i;
+
+  test_init ();
+
+  printf ("%28s", "");
+  FOR_EACH_IMPL (impl, 0)
+    printf ("\t%s", impl->name);
+  putchar ('\n');
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (i, i, 16, 16, 127);
+      do_test (i, i, 16, 16, 255);
+      do_test (i, 2 * i, 16, 16, 127);
+      do_test (2 * i, i, 16, 16, 255);
+      do_test (8 - i, 2 * i, 1 << i, 2 << i, 127);
+      do_test (2 * i, 8 - i, 2 << i, 1 << i, 127);
+      do_test (8 - i, 2 * i, 1 << i, 2 << i, 255);
+      do_test (2 * i, 8 - i, 2 << i, 1 << i, 255);
+    }
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (0, 0, 4 << i, 8 << i, 127);
+      do_test (0, 0, 16 << i, 8 << i, 127);
+      do_test (8 - i, 2 * i, 4 << i, 8 << i, 127);
+      do_test (8 - i, 2 * i, 16 << i, 8 << i, 127);
+    }
+
+  return ret;
+}
+
+#include "../test-skeleton.c"
diff --git a/benchtests/bench-strnlen-ifunc.c b/benchtests/bench-strnlen-ifunc.c
new file mode 100644
index 0000000..05563aa
--- /dev/null
+++ b/benchtests/bench-strnlen-ifunc.c
@@ -0,0 +1,20 @@
+/* Measure IFUNC implementations of strnlen function.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_IFUNC 1
+#include "bench-strnlen.c"
diff --git a/benchtests/bench-strnlen.c b/benchtests/bench-strnlen.c
new file mode 100644
index 0000000..4233f27
--- /dev/null
+++ b/benchtests/bench-strnlen.c
@@ -0,0 +1,139 @@
+/* Measure strlen functions.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_MAIN
+#define TEST_NAME "strnlen"
+#include "bench-string.h"
+
+typedef size_t (*proto_t) (const char *, size_t);
+size_t simple_strnlen (const char *, size_t);
+
+IMPL (simple_strnlen, 0)
+IMPL (strnlen, 1)
+
+size_t
+simple_strnlen (const char *s, size_t maxlen)
+{
+  size_t i;
+
+  for (i = 0; i < maxlen && s[i]; ++i);
+  return i;
+}
+
+static void
+do_one_test (impl_t *impl, const char *s, size_t maxlen, size_t exp_len)
+{
+  size_t len = CALL (impl, s, maxlen);
+  if (len != exp_len)
+    {
+      error (0, 0, "Wrong result in function %s %zd %zd", impl->name,
+	     len, exp_len);
+      ret = 1;
+      return;
+    }
+
+  if (HP_TIMING_AVAIL)
+    {
+      hp_timing_t start __attribute ((unused));
+      hp_timing_t stop __attribute ((unused));
+      hp_timing_t best_time = ~ (hp_timing_t) 0;
+      size_t i;
+
+      for (i = 0; i < 32; ++i)
+	{
+	  HP_TIMING_NOW (start);
+	  CALL (impl, s, maxlen);
+	  HP_TIMING_NOW (stop);
+	  HP_TIMING_BEST (best_time, start, stop);
+	}
+
+      printf ("\t%zd", (size_t) best_time);
+    }
+}
+
+static void
+do_test (size_t align, size_t len, size_t maxlen, int max_char)
+{
+  size_t i;
+
+  align &= 7;
+  if (align + len >= page_size)
+    return;
+
+  for (i = 0; i < len; ++i)
+    buf1[align + i] = 1 + 7 * i % max_char;
+  buf1[align + len] = 0;
+
+  if (HP_TIMING_AVAIL)
+    printf ("Length %4zd, alignment %2zd:", len, align);
+
+  FOR_EACH_IMPL (impl, 0)
+    do_one_test (impl, (char *) (buf1 + align), maxlen, MIN (len, maxlen));
+
+  if (HP_TIMING_AVAIL)
+    putchar ('\n');
+}
+
+int
+test_main (void)
+{
+  size_t i;
+
+  test_init ();
+
+  printf ("%20s", "");
+  FOR_EACH_IMPL (impl, 0)
+    printf ("\t%s", impl->name);
+  putchar ('\n');
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (0, i, i - 1, 127);
+      do_test (0, i, i, 127);
+      do_test (0, i, i + 1, 127);
+    }
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (i, i, i - 1, 127);
+      do_test (i, i, i, 127);
+      do_test (i, i, i + 1, 127);
+    }
+
+  for (i = 2; i <= 10; ++i)
+    {
+      do_test (0, 1 << i, 5000, 127);
+      do_test (1, 1 << i, 5000, 127);
+    }
+
+  for (i = 1; i < 8; ++i)
+    do_test (0, i, 5000, 255);
+
+  for (i = 1; i < 8; ++i)
+    do_test (i, i, 5000, 255);
+
+  for (i = 2; i <= 10; ++i)
+    {
+      do_test (0, 1 << i, 5000, 255);
+      do_test (1, 1 << i, 5000, 255);
+    }
+
+  return ret;
+}
+
+#include "../test-skeleton.c"
diff --git a/benchtests/bench-strpbrk-ifunc.c b/benchtests/bench-strpbrk-ifunc.c
new file mode 100644
index 0000000..38f9881
--- /dev/null
+++ b/benchtests/bench-strpbrk-ifunc.c
@@ -0,0 +1,20 @@
+/* Measure IFUNC implementations of strpbrk function.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_IFUNC 1
+#include "bench-strpbrk.c"
diff --git a/benchtests/bench-strpbrk.c b/benchtests/bench-strpbrk.c
new file mode 100644
index 0000000..0163de8
--- /dev/null
+++ b/benchtests/bench-strpbrk.c
@@ -0,0 +1,182 @@
+/* Measure strpbrk functions.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef STRPBRK_RESULT
+# define STRPBRK_RESULT(s, pos) ((s)[(pos)] ? (s) + (pos) : NULL)
+# define RES_TYPE char *
+# define TEST_MAIN
+# define TEST_NAME "strpbrk"
+# include "bench-string.h"
+
+typedef char *(*proto_t) (const char *, const char *);
+char *simple_strpbrk (const char *, const char *);
+char *stupid_strpbrk (const char *, const char *);
+
+IMPL (stupid_strpbrk, 0)
+IMPL (simple_strpbrk, 0)
+IMPL (strpbrk, 1)
+
+char *
+simple_strpbrk (const char *s, const char *rej)
+{
+  const char *r;
+  char c;
+
+  while ((c = *s++) != '\0')
+    for (r = rej; *r != '\0'; ++r)
+      if (*r == c)
+	return (char *) s - 1;
+  return NULL;
+}
+
+char *
+stupid_strpbrk (const char *s, const char *rej)
+{
+  size_t ns = strlen (s), nrej = strlen (rej);
+  size_t i, j;
+
+  for (i = 0; i < ns; ++i)
+    for (j = 0; j < nrej; ++j)
+      if (s[i] == rej[j])
+	return (char *) s + i;
+  return NULL;
+}
+#endif
+
+static void
+do_one_test (impl_t *impl, const char *s, const char *rej, RES_TYPE exp_res)
+{
+  RES_TYPE res = CALL (impl, s, rej);
+  if (res != exp_res)
+    {
+      error (0, 0, "Wrong result in function %s %p %p", impl->name,
+	     (void *) res, (void *) exp_res);
+      ret = 1;
+      return;
+    }
+
+  if (HP_TIMING_AVAIL)
+    {
+      hp_timing_t start __attribute ((unused));
+      hp_timing_t stop __attribute ((unused));
+      hp_timing_t best_time = ~ (hp_timing_t) 0;
+      size_t i;
+
+      for (i = 0; i < 32; ++i)
+	{
+	  HP_TIMING_NOW (start);
+	  CALL (impl, s, rej);
+	  HP_TIMING_NOW (stop);
+	  HP_TIMING_BEST (best_time, start, stop);
+	}
+
+      printf ("\t%zd", (size_t) best_time);
+    }
+}
+
+static void
+do_test (size_t align, size_t pos, size_t len)
+{
+  size_t i;
+  int c;
+  RES_TYPE result;
+  char *rej, *s;
+
+  align &= 7;
+  if (align + pos + 10 >= page_size || len > 240)
+    return;
+
+  rej = (char *) (buf2 + (random () & 255));
+  s = (char *) (buf1 + align);
+
+  for (i = 0; i < len; ++i)
+    {
+      rej[i] = random () & 255;
+      if (!rej[i])
+	rej[i] = random () & 255;
+      if (!rej[i])
+	rej[i] = 1 + (random () & 127);
+    }
+  rej[len] = '\0';
+  for (c = 1; c <= 255; ++c)
+    if (strchr (rej, c) == NULL)
+      break;
+
+  for (i = 0; i < pos; ++i)
+    {
+      s[i] = random () & 255;
+      if (strchr (rej, s[i]))
+	{
+	  s[i] = random () & 255;
+	  if (strchr (rej, s[i]))
+	    s[i] = c;
+	}
+    }
+  s[pos] = rej[random () % (len + 1)];
+  if (s[pos])
+    {
+      for (i = pos + 1; i < pos + 10; ++i)
+	s[i] = random () & 255;
+      s[i] = '\0';
+    }
+  result = STRPBRK_RESULT (s, pos);
+
+  if (HP_TIMING_AVAIL)
+    printf ("Length %4zd, alignment %2zd, rej len %2zd:", pos, align, len);
+
+  FOR_EACH_IMPL (impl, 0)
+    do_one_test (impl, s, rej, result);
+
+  if (HP_TIMING_AVAIL)
+    putchar ('\n');
+}
+
+int
+test_main (void)
+{
+  size_t i;
+
+  test_init ();
+
+  printf ("%32s", "");
+  FOR_EACH_IMPL (impl, 0)
+    printf ("\t%s", impl->name);
+  putchar ('\n');
+
+  for (i = 0; i < 32; ++i)
+    {
+      do_test (0, 512, i);
+      do_test (i, 512, i);
+    }
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (0, 16 << i, 4);
+      do_test (i, 16 << i, 4);
+    }
+
+  for (i = 1; i < 8; ++i)
+    do_test (i, 64, 10);
+
+  for (i = 0; i < 64; ++i)
+    do_test (0, i, 6);
+
+  return ret;
+}
+
+#include "../test-skeleton.c"
diff --git a/benchtests/bench-strrchr-ifunc.c b/benchtests/bench-strrchr-ifunc.c
new file mode 100644
index 0000000..06283cd
--- /dev/null
+++ b/benchtests/bench-strrchr-ifunc.c
@@ -0,0 +1,20 @@
+/* Measure IFUNC implementations of strrchr function.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_IFUNC 1
+#include "bench-strrchr.c"
diff --git a/benchtests/bench-strrchr.c b/benchtests/bench-strrchr.c
new file mode 100644
index 0000000..400ac80
--- /dev/null
+++ b/benchtests/bench-strrchr.c
@@ -0,0 +1,190 @@
+/* Measure STRCHR functions.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_MAIN
+#ifdef WIDE
+# define TEST_NAME "wcsrchr"
+#else
+# define TEST_NAME "strrchr"
+#endif
+#include "bench-string.h"
+
+#ifdef WIDE
+# include <wchar.h>
+# define SIMPLE_STRRCHR simple_wcsrchr
+# define STRRCHR wcsrchr
+# define CHAR wchar_t
+# define UCHAR wchar_t
+# define BIG_CHAR WCHAR_MAX
+# define SMALL_CHAR 1273
+#else
+# define SIMPLE_STRRCHR simple_strrchr
+# define STRRCHR strrchr
+# define CHAR char
+# define UCHAR unsigned char
+# define BIG_CHAR CHAR_MAX
+# define SMALL_CHAR 127
+#endif
+
+typedef CHAR *(*proto_t) (const CHAR *, int);
+CHAR *SIMPLE_STRRCHR (const CHAR *, int);
+
+IMPL (SIMPLE_STRRCHR, 0)
+IMPL (STRRCHR, 1)
+
+CHAR *
+SIMPLE_STRRCHR (const CHAR *s, int c)
+{
+  const CHAR *ret = NULL;
+
+  for (; *s != '\0'; ++s)
+    if (*s == (CHAR) c)
+      ret = s;
+
+  return (CHAR *) (c == '\0' ? s : ret);
+}
+
+static void
+do_one_test (impl_t *impl, const CHAR *s, int c, CHAR *exp_res)
+{
+  CHAR *res = CALL (impl, s, c);
+  if (res != exp_res)
+    {
+      error (0, 0, "Wrong result in function %s %p %p", impl->name,
+	     res, exp_res);
+      ret = 1;
+      return;
+    }
+
+  if (HP_TIMING_AVAIL)
+    {
+      hp_timing_t start __attribute ((unused));
+      hp_timing_t stop __attribute ((unused));
+      hp_timing_t best_time = ~ (hp_timing_t) 0;
+      size_t i;
+
+      for (i = 0; i < 32; ++i)
+	{
+	  HP_TIMING_NOW (start);
+	  CALL (impl, s, c);
+	  HP_TIMING_NOW (stop);
+	  HP_TIMING_BEST (best_time, start, stop);
+	}
+
+      printf ("\t%zd", (size_t) best_time);
+    }
+}
+
+static void
+do_test (size_t align, size_t pos, size_t len, int seek_char, int max_char)
+/* For wcsrchr: align here means align not in bytes,
+   but in wchar_ts, in bytes it will equal to align * (sizeof (wchar_t))
+   len for wcschr here isn't in bytes but it's number of wchar_t symbols.  */
+{
+  size_t i;
+  CHAR *result;
+  CHAR *buf = (CHAR *) buf1;
+
+  align &= 7;
+  if ( (align + len) * sizeof(CHAR) >= page_size)
+    return;
+
+  for (i = 0; i < len; ++i)
+    {
+      buf[align + i] = (random () * random ()) & max_char;
+      if (!buf[align + i])
+	buf[align + i] = (random () * random ()) & max_char;
+      if (!buf[align + i])
+	buf[align + i] = 1;
+      if ((i > pos || pos >= len) && buf[align + i] == seek_char)
+	buf[align + i] = seek_char + 10 + (random () & 15);
+    }
+  buf[align + len] = 0;
+
+  if (pos < len)
+    {
+      buf[align + pos] = seek_char;
+      result = (CHAR *) (buf + align + pos);
+    }
+  else if (seek_char == 0)
+    result = (CHAR *) (buf + align + len);
+  else
+    result = NULL;
+
+  if (HP_TIMING_AVAIL)
+    printf ("Length %4zd, alignment in bytes %2zd:", pos, align * sizeof(CHAR));
+
+  FOR_EACH_IMPL (impl, 0)
+    do_one_test (impl, (CHAR *) (buf + align), seek_char, result);
+
+  if (HP_TIMING_AVAIL)
+    putchar ('\n');
+}
+
+int
+test_main (void)
+{
+  size_t i;
+
+  test_init ();
+
+  printf ("%20s", "");
+  FOR_EACH_IMPL (impl, 0)
+    printf ("\t%s", impl->name);
+  putchar ('\n');
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (0, 16 << i, 2048, 23, SMALL_CHAR);
+      do_test (i, 16 << i, 2048, 23, SMALL_CHAR);
+    }
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (i, 64, 256, 23, SMALL_CHAR);
+      do_test (i, 64, 256, 23, BIG_CHAR);
+    }
+
+  for (i = 0; i < 32; ++i)
+    {
+      do_test (0, i, i + 1, 23, SMALL_CHAR);
+      do_test (0, i, i + 1, 23, BIG_CHAR);
+    }
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (0, 16 << i, 2048, 0, SMALL_CHAR);
+      do_test (i, 16 << i, 2048, 0, SMALL_CHAR);
+    }
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (i, 64, 256, 0, SMALL_CHAR);
+      do_test (i, 64, 256, 0, BIG_CHAR);
+    }
+
+  for (i = 0; i < 32; ++i)
+    {
+      do_test (0, i, i + 1, 0, SMALL_CHAR);
+      do_test (0, i, i + 1, 0, BIG_CHAR);
+    }
+
+  return ret;
+}
+
+#include "../test-skeleton.c"
diff --git a/benchtests/bench-strspn-ifunc.c b/benchtests/bench-strspn-ifunc.c
new file mode 100644
index 0000000..4040c2f
--- /dev/null
+++ b/benchtests/bench-strspn-ifunc.c
@@ -0,0 +1,20 @@
+/* Measure IFUNC implementations of strspn function.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_IFUNC 1
+#include "bench-strspn.c"
diff --git a/benchtests/bench-strspn.c b/benchtests/bench-strspn.c
new file mode 100644
index 0000000..7cf26f4
--- /dev/null
+++ b/benchtests/bench-strspn.c
@@ -0,0 +1,174 @@
+/* Measure strspn functions.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_MAIN
+#define TEST_NAME "strspn"
+#include "bench-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)
+
+size_t
+simple_strspn (const char *s, const char *acc)
+{
+  const char *r, *str = s;
+  char c;
+
+  while ((c = *s++) != '\0')
+    {
+      for (r = acc; *r != '\0'; ++r)
+	if (*r == c)
+	  break;
+      if (*r == '\0')
+	return s - str - 1;
+    }
+  return s - str - 1;
+}
+
+size_t
+stupid_strspn (const char *s, const char *acc)
+{
+  size_t ns = strlen (s), nacc = strlen (acc);
+  size_t i, j;
+
+  for (i = 0; i < ns; ++i)
+    {
+      for (j = 0; j < nacc; ++j)
+	if (s[i] == acc[j])
+	  break;
+      if (j == nacc)
+	return i;
+    }
+  return i;
+}
+
+static void
+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)
+    {
+      error (0, 0, "Wrong result in function %s %p %p", impl->name,
+	     (void *) res, (void *) exp_res);
+      ret = 1;
+      return;
+    }
+
+  if (HP_TIMING_AVAIL)
+    {
+      hp_timing_t start __attribute ((unused));
+      hp_timing_t stop __attribute ((unused));
+      hp_timing_t best_time = ~ (hp_timing_t) 0;
+      size_t i;
+
+      for (i = 0; i < 32; ++i)
+	{
+	  HP_TIMING_NOW (start);
+	  CALL (impl, s, acc);
+	  HP_TIMING_NOW (stop);
+	  HP_TIMING_BEST (best_time, start, stop);
+	}
+
+      printf ("\t%zd", (size_t) best_time);
+    }
+}
+
+static void
+do_test (size_t align, size_t pos, size_t len)
+{
+  size_t i;
+  char *acc, *s;
+
+  align &= 7;
+  if (align + pos + 10 >= page_size || len > 240 || ! len)
+    return;
+
+  acc = (char *) (buf2 + (random () & 255));
+  s = (char *) (buf1 + align);
+
+  for (i = 0; i < len; ++i)
+    {
+      acc[i] = random () & 255;
+      if (!acc[i])
+	acc[i] = random () & 255;
+      if (!acc[i])
+	acc[i] = 1 + (random () & 127);
+    }
+  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] = '\0';
+  else
+    {
+      for (i = pos + 1; i < pos + 10; ++i)
+	s[i] = random () & 255;
+      s[i] = '\0';
+    }
+
+  if (HP_TIMING_AVAIL)
+    printf ("Length %4zd, alignment %2zd, acc len %2zd:", pos, align, len);
+
+  FOR_EACH_IMPL (impl, 0)
+    do_one_test (impl, s, acc, pos);
+
+  if (HP_TIMING_AVAIL)
+    putchar ('\n');
+}
+
+int
+test_main (void)
+{
+  size_t i;
+
+  test_init ();
+
+  printf ("%32s", "");
+  FOR_EACH_IMPL (impl, 0)
+    printf ("\t%s", impl->name);
+  putchar ('\n');
+
+  for (i = 0; i < 32; ++i)
+    {
+      do_test (0, 512, i);
+      do_test (i, 512, i);
+    }
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (0, 16 << i, 4);
+      do_test (i, 16 << i, 4);
+    }
+
+  for (i = 1; i < 8; ++i)
+    do_test (i, 64, 10);
+
+  for (i = 0; i < 64; ++i)
+    do_test (0, i, 6);
+
+  return ret;
+}
+
+#include "../test-skeleton.c"
diff --git a/benchtests/bench-strstr-ifunc.c b/benchtests/bench-strstr-ifunc.c
new file mode 100644
index 0000000..b187ca5
--- /dev/null
+++ b/benchtests/bench-strstr-ifunc.c
@@ -0,0 +1,20 @@
+/* Measure IFUNC implementations of strstr function.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_IFUNC 1
+#include "bench-strstr.c"
diff --git a/benchtests/bench-strstr.c b/benchtests/bench-strstr.c
new file mode 100644
index 0000000..91a8dfe
--- /dev/null
+++ b/benchtests/bench-strstr.c
@@ -0,0 +1,183 @@
+/* Measure strstr functions.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#define TEST_MAIN
+#define TEST_NAME "strstr"
+#include "bench-string.h"
+
+
+#define STRSTR simple_strstr
+#include "../string/strstr.c"
+
+
+static char *
+stupid_strstr (const char *s1, const char *s2)
+{
+  ssize_t s1len = strlen (s1);
+  ssize_t s2len = strlen (s2);
+
+  if (s2len > s1len)
+    return NULL;
+
+  for (ssize_t i = 0; i <= s1len - s2len; ++i)
+    {
+      size_t j;
+      for (j = 0; j < s2len; ++j)
+	if (s1[i + j] != s2[j])
+	  break;
+      if (j == s2len)
+	return (char *) s1 + i;
+    }
+
+  return NULL;
+}
+
+
+typedef char *(*proto_t) (const char *, const char *);
+
+IMPL (stupid_strstr, 0)
+IMPL (simple_strstr, 0)
+IMPL (strstr, 1)
+
+
+static void
+do_one_test (impl_t *impl, const char *s1, const char *s2, char *exp_result)
+{
+  if (HP_TIMING_AVAIL)
+    {
+      hp_timing_t start __attribute ((unused));
+      hp_timing_t stop __attribute ((unused));
+      hp_timing_t best_time = ~(hp_timing_t) 0;
+      size_t i;
+
+      for (i = 0; i < 32; ++i)
+	{
+	  HP_TIMING_NOW (start);
+	  CALL (impl, s1, s2);
+	  HP_TIMING_NOW (stop);
+	  HP_TIMING_BEST (best_time, start, stop);
+	}
+
+      printf ("\t%zd", (size_t) best_time);
+    }
+}
+
+
+static void
+do_test (size_t align1, size_t align2, size_t len1, size_t len2,
+	 int fail)
+{
+  char *s1 = (char *) (buf1 + align1);
+  char *s2 = (char *) (buf2 + align2);
+
+  static const char d[] = "1234567890abcdef";
+#define dl (sizeof (d) - 1)
+  char *ss2 = s2;
+  for (size_t l = len2; l > 0; l = l > dl ? l - dl : 0)
+    {
+      size_t t = l > dl ? dl : l;
+      ss2 = mempcpy (ss2, d, t);
+    }
+  s2[len2] = '\0';
+
+  if (fail)
+    {
+      char *ss1 = s1;
+      for (size_t l = len1; l > 0; l = l > dl ? l - dl : 0)
+	{
+	  size_t t = l > dl ? dl : l;
+	  memcpy (ss1, d, t);
+	  ++ss1[len2 > 7 ? 7 : len2 - 1];
+	  ss1 += t;
+	}
+    }
+  else
+    {
+      memset (s1, '0', len1);
+      memcpy (s1 + len1 - len2, s2, len2);
+    }
+  s1[len1] = '\0';
+
+  if (HP_TIMING_AVAIL)
+    printf ("Length %4zd/%zd, alignment %2zd/%2zd, %s:",
+	    len1, len2, align1, align2, fail ? "fail" : "found");
+
+  FOR_EACH_IMPL (impl, 0)
+    do_one_test (impl, s1, s2, fail ? NULL : s1 + len1 - len2);
+
+  if (HP_TIMING_AVAIL)
+    putchar ('\n');
+}
+
+static int
+test_main (void)
+{
+  test_init ();
+
+  printf ("%23s", "");
+  FOR_EACH_IMPL (impl, 0)
+    printf ("\t%s", impl->name);
+  putchar ('\n');
+
+  for (size_t klen = 2; klen < 32; ++klen)
+    for (size_t hlen = 2 * klen; hlen < 16 * klen; hlen += klen)
+      {
+	do_test (0, 0, hlen, klen, 0);
+	do_test (0, 0, hlen, klen, 1);
+	do_test (0, 3, hlen, klen, 0);
+	do_test (0, 3, hlen, klen, 1);
+	do_test (0, 9, hlen, klen, 0);
+	do_test (0, 9, hlen, klen, 1);
+	do_test (0, 15, hlen, klen, 0);
+	do_test (0, 15, hlen, klen, 1);
+
+	do_test (3, 0, hlen, klen, 0);
+	do_test (3, 0, hlen, klen, 1);
+	do_test (3, 3, hlen, klen, 0);
+	do_test (3, 3, hlen, klen, 1);
+	do_test (3, 9, hlen, klen, 0);
+	do_test (3, 9, hlen, klen, 1);
+	do_test (3, 15, hlen, klen, 0);
+	do_test (3, 15, hlen, klen, 1);
+
+	do_test (9, 0, hlen, klen, 0);
+	do_test (9, 0, hlen, klen, 1);
+	do_test (9, 3, hlen, klen, 0);
+	do_test (9, 3, hlen, klen, 1);
+	do_test (9, 9, hlen, klen, 0);
+	do_test (9, 9, hlen, klen, 1);
+	do_test (9, 15, hlen, klen, 0);
+	do_test (9, 15, hlen, klen, 1);
+
+	do_test (15, 0, hlen, klen, 0);
+	do_test (15, 0, hlen, klen, 1);
+	do_test (15, 3, hlen, klen, 0);
+	do_test (15, 3, hlen, klen, 1);
+	do_test (15, 9, hlen, klen, 0);
+	do_test (15, 9, hlen, klen, 1);
+	do_test (15, 15, hlen, klen, 0);
+	do_test (15, 15, hlen, klen, 1);
+      }
+
+  do_test (0, 0, page_size - 1, 16, 0);
+  do_test (0, 0, page_size - 1, 16, 1);
+
+  return ret;
+}
+
+#include "../test-skeleton.c"