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Commit	Line	Data
	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	* test exp performance (should add range check)
	33	*/
	34
	35	#include <unistd.h>
	36	#include <stdio.h>
	37	#include <stdlib.h>
	38	#include <math.h>
	39
	40	#include "libmicro.h"
	41
	42	int
	43	benchmark_init()
	44	{
	45	(void) sprintf(lm_usage, "note: measures exp()");
	46	lm_nsecs_per_op = 25;
	47	lm_tsdsize = 0;
	48	return (0);
	49	}
	50
	51	/ARGSUSED/
	52	int
	53	benchmark(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 = 1.0 / (i + .01);
	61	#if 1 /* Apple added code, see radar 7508837 */
	62	t += exp(value);
	63	t += exp(value + 1.0);
	64	t += exp(value + 2.0);
	65	t += exp(value + 3.0);
	66	t += exp(value + 4.0);
	67	t += exp(value + 5.0);
	68	t += exp(value + 6.0);
	69	t += exp(value + 7.0);
	70	t += exp(value + 8.0);
	71	t += exp(value + 9.0);
	72	}
	73	res->re_count = i;
	74
	75	return ((int)(t - t));
	76	#else
	77	(void) exp(value);
	78	(void) exp(value);
	79	(void) exp(value);
	80	(void) exp(value);
	81	(void) exp(value);
	82	(void) exp(value);
	83	(void) exp(value);
	84	(void) exp(value);
	85	(void) exp(value);
	86	(void) exp(value);
	87	}
	88	res->re_count = i;
	89
	90	return (0);
	91	#endif /* end of Apple fix */
	92	}