1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms
5 * of the Common Development and Distribution License
6 * (the "License").  You may not use this file except
7 * in compliance with the License.
8 *
9 * You can obtain a copy of the license at
10 * src/OPENSOLARIS.LICENSE
11 * or http://www.opensolaris.org/os/licensing.
12 * See the License for the specific language governing
13 * permissions and limitations under the License.
14 *
15 * When distributing Covered Code, include this CDDL
16 * HEADER in each file and include the License file at
17 * usr/src/OPENSOLARIS.LICENSE.  If applicable,
18 * add the following below this CDDL HEADER, with the
19 * fields enclosed by brackets "[]" replaced with your
20 * own identifying information: Portions Copyright [yyyy]
21 * [name of copyright owner]
22 *
23 * CDDL HEADER END
24 */
25
26/*
27 * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
28 * Use is subject to license terms.
29 */
30
31/*
32 * log benchmark - should do wider range...
33 */
34
35#include <unistd.h>
36#include <stdio.h>
37#include <stdlib.h>
38#include <math.h>
39
40#include "libmicro.h"
41
42int
43benchmark_init()
44{
45	(void) sprintf(lm_usage, "note: measures log()");
46	lm_nsecs_per_op = 75;
47	lm_tsdsize = 0;
48	return (0);
49}
50
51/*ARGSUSED*/
52int
53benchmark(void *tsd, result_t *res)
54{
55	int			i;
56	/* Added as part of the fix for radar 7508837 */
57        double                  t = 0.0;
58
59	for (i = 0; i < lm_optB; i += 10) {
60		double value = i + .01;
61#if 1 /* Apple added code, see radar 7508837 */
62                t += log(value);
63                t += log(value + 1.0);
64                t += log(value + 2.0);
65                t += log(value + 3.0);
66                t += log(value + 4.0);
67                t += log(value + 5.0);
68                t += log(value + 6.0);
69                t += log(value + 7.0);
70                t += log(value + 8.0);
71                t += log(value + 9.0);
72        }
73        res->re_count = i;
74
75        return ((int)(t - t));
76#else
77		(void) log(value);
78		(void) log(value);
79		(void) log(value);
80		(void) log(value);
81		(void) log(value);
82		(void) log(value);
83		(void) log(value);
84		(void) log(value);
85		(void) log(value);
86		(void) log(value);
87	}
88	res->re_count = i;
89
90	return (0);
91#endif /* end of Apple fix  */
92}
93