Permalink
Cannot retrieve contributors at this time
Name already in use
A tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Are you sure you want to create this branch?
glibc/benchtests/bench-strspn.c
Go to fileThis commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
192 lines (159 sloc)
4.05 KB
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
/* Measure strspn functions. | |
Copyright (C) 2013-2016 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 "strspn" | |
#else | |
# define TEST_NAME "wcsspn" | |
#endif /* WIDE */ | |
#include "bench-string.h" | |
#ifndef WIDE | |
# define STRSPN strspn | |
# define CHAR char | |
# define SIMPLE_STRSPN simple_strspn | |
# define STUPID_STRSPN stupid_strspn | |
# define STRLEN strlen | |
# define STRCHR strchr | |
# define BIG_CHAR CHAR_MAX | |
# define SMALL_CHAR 127 | |
#else | |
# include <wchar.h> | |
# define STRSPN wcsspn | |
# define CHAR wchar_t | |
# define SIMPLE_STRSPN simple_wcsspn | |
# define STUPID_STRSPN stupid_wcsspn | |
# define STRLEN wcslen | |
# define STRCHR wcschr | |
# define BIG_CHAR WCHAR_MAX | |
# define SMALL_CHAR 1273 | |
#endif /* WIDE */ | |
typedef size_t (*proto_t) (const CHAR *, const CHAR *); | |
size_t SIMPLE_STRSPN (const CHAR *, const CHAR *); | |
size_t STUPID_STRSPN (const CHAR *, const CHAR *); | |
IMPL (STUPID_STRSPN, 0) | |
IMPL (SIMPLE_STRSPN, 0) | |
IMPL (STRSPN, 1) | |
size_t | |
SIMPLE_STRSPN (const CHAR *s, const CHAR *acc) | |
{ | |
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), i, iters = INNER_LOOP_ITERS; | |
timing_t start, stop, cur; | |
if (res != exp_res) | |
{ | |
error (0, 0, "Wrong result in function %s %p %p", impl->name, | |
(void *) res, (void *) exp_res); | |
ret = 1; | |
return; | |
} | |
TIMING_NOW (start); | |
for (i = 0; i < iters; ++i) | |
{ | |
CALL (impl, s, acc); | |
} | |
TIMING_NOW (stop); | |
TIMING_DIFF (cur, start, stop); | |
TIMING_PRINT_MEAN ((double) cur, (double) iters); | |
} | |
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) * sizeof (CHAR) >= page_size || len > 240 || ! len) | |
return; | |
acc = (CHAR *) (buf2) + (random () & 255); | |
s = (CHAR *) (buf1) + align; | |
for (i = 0; i < len; ++i) | |
{ | |
acc[i] = random () & BIG_CHAR; | |
if (!acc[i]) | |
acc[i] = random () & BIG_CHAR; | |
if (!acc[i]) | |
acc[i] = 1 + (random () & SMALL_CHAR); | |
} | |
acc[len] = '\0'; | |
for (i = 0; i < pos; ++i) | |
s[i] = acc[random () % len]; | |
s[pos] = random () & BIG_CHAR; | |
if (STRCHR (acc, s[pos])) | |
s[pos] = '\0'; | |
else | |
{ | |
for (i = pos + 1; i < pos + 10; ++i) | |
s[i] = random () & BIG_CHAR; | |
s[i] = '\0'; | |
} | |
printf ("Length %4zd, alignment %2zd, acc len %2zd:", pos, align, len); | |
FOR_EACH_IMPL (impl, 0) | |
do_one_test (impl, s, acc, pos); | |
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" |