1 /*
2  * Copyright (C) 2007
3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4  *
5  * SPDX-License-Identifier:	GPL-2.0+
6  */
7 /*
8  * This file is originally a part of the GCC testsuite.
9  */
10 
11 #include <common.h>
12 
13 #include <post.h>
14 
15 GNU_FPOST_ATTR
16 
17 #if CONFIG_POST & CONFIG_SYS_POST_FPU
18 
19 int fpu_post_test_math1 (void)
20 {
21 	volatile double a;
22 	double c, d;
23 	volatile double b;
24 
25 	d = 1.0;
26 
27 	do
28 	{
29 		c = d;
30 		d = c * 0.5;
31 		b = 1 + d;
32 	} while (b != 1.0);
33 
34 	a = 1.0 + c;
35 
36 	if (a == 1.0) {
37 		post_log ("Error in FPU math1 test\n");
38 		return -1;
39 	}
40 
41 	return 0;
42 }
43 
44 #endif /* CONFIG_POST & CONFIG_SYS_POST_FPU */
45