xref: /openbmc/u-boot/post/lib_powerpc/fpu/acc1.c (revision 8e9c897b)
1 /*
2  * Copyright (C) 2007
3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4  *
5  * See file CREDITS for list of people who contributed to this
6  * project.
7  *
8  * This program is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU General Public License as
10  * published by the Free Software Foundation; either version 2 of
11  * the License, or (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; if not, write to the Free Software
20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21  * MA 02111-1307 USA
22  */
23 /*
24  * This file is originally a part of the GCC testsuite.
25  */
26 
27 #include <common.h>
28 
29 #include <post.h>
30 
31 GNU_FPOST_ATTR
32 
33 #if CONFIG_POST & CONFIG_SYS_POST_FPU
34 
35 static double func (const double *array)
36 {
37 	double d = *array;
38 
39 	if (d == 0.0)
40 		return d;
41 	else
42 		return d + func (array + 1);
43 }
44 
45 int fpu_post_test_math5 (void)
46 {
47 	double values[] = { 0.1e-100, 1.0, -1.0, 0.0 };
48 
49 	if (func (values) != 0.1e-100) {
50 		post_log ("Error in FPU math5 test\n");
51 		return -1;
52 	}
53 	return 0;
54 }
55 
56 #endif /* CONFIG_POST & CONFIG_SYS_POST_FPU */
57