1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (C) 2007
4  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5  */
6 /*
7  * This file is originally a part of the GCC testsuite.
8  */
9 
10 #include <common.h>
11 
12 #include <post.h>
13 
14 GNU_FPOST_ATTR
15 
16 #if CONFIG_POST & CONFIG_SYS_POST_FPU
17 
fpu_post_test_math3(void)18 int fpu_post_test_math3 (void)
19 {
20 	volatile long double dfrom = 1.1;
21 	volatile long double m1;
22 	volatile long double m2;
23 	volatile unsigned long mant_long;
24 
25 	m1 = dfrom / 2.0;
26 	m2 = m1 * 4294967296.0;
27 	mant_long = ((unsigned long) m2) & 0xffffffff;
28 
29 	if (mant_long != 0x8ccccccc) {
30 		post_log ("Error in FPU math3 test\n");
31 		return -1;
32 	}
33 	return 0;
34 }
35 
36 #endif /* CONFIG_POST & CONFIG_SYS_POST_FPU */
37