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Commit | Line | Data |
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b4489621 SP |
1 | /* |
2 | * Copyright (C) 2007 | |
3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
4 | * | |
1a459660 | 5 | * SPDX-License-Identifier: GPL-2.0+ |
b4489621 SP |
6 | */ |
7 | /* | |
8 | * This file is originally a part of the GCC testsuite. | |
9 | */ | |
10 | ||
11 | #include <common.h> | |
12 | ||
b4489621 SP |
13 | #include <post.h> |
14 | ||
ce82ff05 YT |
15 | GNU_FPOST_ATTR |
16 | ||
e009cdeb KG |
17 | #if CONFIG_POST & CONFIG_SYS_POST_FPU |
18 | ||
b4489621 SP |
19 | int fpu_post_test_math4 (void) |
20 | { | |
21 | volatile float reale = 1.0f; | |
22 | volatile float oneplus; | |
23 | int i; | |
24 | ||
25 | if (sizeof (float) != 4) | |
26 | return 0; | |
27 | ||
28 | for (i = 0; ; i++) | |
29 | { | |
30 | oneplus = 1.0f + reale; | |
31 | if (oneplus == 1.0f) | |
32 | break; | |
33 | reale = reale / 2.0f; | |
34 | } | |
35 | /* Assumes ieee754 accurate arithmetic above. */ | |
36 | if (i != 24) { | |
37 | post_log ("Error in FPU math4 test\n"); | |
38 | return -1; | |
39 | } | |
40 | return 0; | |
41 | } | |
42 | ||
6d0f6bcf | 43 | #endif /* CONFIG_POST & CONFIG_SYS_POST_FPU */ |