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/* Measure strspn functions.
Copyright (C) 2013-2025 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
<https://www.gnu.org/licenses/>. */
#define TEST_MAIN
#ifndef WIDE
# define TEST_NAME "strspn"
#else
# define TEST_NAME "wcsspn"
#endif /* WIDE */
#include "bench-string.h"
#include "json-lib.h"
#define BIG_CHAR MAX_CHAR
#ifndef WIDE
# define SMALL_CHAR 127
#else
# define SMALL_CHAR 1273
#endif /* WIDE */
typedef size_t (*proto_t) (const CHAR *, const CHAR *);
IMPL (STRSPN, 1)
static void
do_one_test (json_ctx_t *json_ctx, impl_t *impl, const CHAR *s,
const CHAR *acc, size_t exp_res)
{
size_t res = CALL (impl, s, acc), i, iters = INNER_LOOP_ITERS8 / CHARBYTES;
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);
json_element_double (json_ctx, (double)cur / (double)iters);
}
static void
do_test (json_ctx_t *json_ctx, size_t align1, size_t align2, size_t pos,
size_t len)
{
size_t i;
CHAR *acc, *s;
align1 &= 7;
if ((align1 + pos + 10) * sizeof (CHAR) >= page_size || len > 240 || !len)
return;
if ((align2 + len) * sizeof (CHAR) >= page_size)
return;
acc = (CHAR *) (buf2) + align2;
s = (CHAR *) (buf1) + align1;
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';
}
json_element_object_begin (json_ctx);
json_attr_uint (json_ctx, "len", len);
json_attr_uint (json_ctx, "pos", pos);
json_attr_uint (json_ctx, "align1", align1);
json_attr_uint (json_ctx, "align2", align2);
json_array_begin (json_ctx, "timings");
FOR_EACH_IMPL (impl, 0)
do_one_test (json_ctx, impl, s, acc, pos);
json_array_end (json_ctx);
json_element_object_end (json_ctx);
}
int
test_main (void)
{
json_ctx_t json_ctx;
size_t i;
test_init ();
json_init (&json_ctx, 0, stdout);
json_document_begin (&json_ctx);
json_attr_string (&json_ctx, "timing_type", TIMING_TYPE);
json_attr_object_begin (&json_ctx, "functions");
json_attr_object_begin (&json_ctx, TEST_NAME);
json_attr_string (&json_ctx, "bench-variant", "");
json_array_begin (&json_ctx, "ifuncs");
FOR_EACH_IMPL (impl, 0)
json_element_string (&json_ctx, impl->name);
json_array_end (&json_ctx);
json_array_begin (&json_ctx, "results");
for (i = 0; i < 32; ++i)
{
do_test (&json_ctx, 0, 0, 512, i);
do_test (&json_ctx, i, 0, 512, i);
do_test (&json_ctx, 0, i, 512, i);
do_test (&json_ctx, i, i, 512, i);
}
for (i = 1; i < 8; ++i)
{
do_test (&json_ctx, 0, 0, 16 << i, 4);
do_test (&json_ctx, i, 0, 16 << i, 4);
do_test (&json_ctx, 0, i, 16 << i, 4);
do_test (&json_ctx, i, i, 16 << i, 4);
}
for (i = 1; i < 8; ++i)
{
do_test (&json_ctx, i, 0, 64, 10);
do_test (&json_ctx, i, i, 64, 10);
}
for (i = 0; i < 64; ++i)
{
do_test (&json_ctx, 0, 0, i, 6);
do_test (&json_ctx, 0, i, i, 6);
}
json_array_end (&json_ctx);
json_attr_object_end (&json_ctx);
json_attr_object_end (&json_ctx);
json_document_end (&json_ctx);
return ret;
}
#include <support/test-driver.c>
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