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1 //===-- moddi3_test.c - Test __moddi3 -------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file tests __moddi3 for the compiler_rt library.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #include "int_lib.h"
15 #include <stdio.h>
16 
17 // Returns: a % b
18 
19 COMPILER_RT_ABI di_int __moddi3(di_int a, di_int b);
20 
test__moddi3(di_int a,di_int b,di_int expected)21 int test__moddi3(di_int a, di_int b, di_int expected)
22 {
23     di_int x = __moddi3(a, b);
24     if (x != expected)
25         printf("error in __moddi3: %lld %% %lld = %lld, expected %lld\n",
26                a, b, x, expected);
27     return x != expected;
28 }
29 
30 char assumption_1[sizeof(di_int) == 2*sizeof(si_int)] = {0};
31 
main()32 int main()
33 {
34     if (test__moddi3(0, 1, 0))
35         return 1;
36     if (test__moddi3(0, -1, 0))
37         return 1;
38 
39     if (test__moddi3(5, 3, 2))
40         return 1;
41     if (test__moddi3(5, -3, 2))
42         return 1;
43     if (test__moddi3(-5, 3, -2))
44         return 1;
45     if (test__moddi3(-5, -3, -2))
46         return 1;
47 
48     if (test__moddi3(0x8000000000000000LL, 1, 0x0LL))
49         return 1;
50     if (test__moddi3(0x8000000000000000LL, -1, 0x0LL))
51         return 1;
52     if (test__moddi3(0x8000000000000000LL, 2, 0x0LL))
53         return 1;
54     if (test__moddi3(0x8000000000000000LL, -2, 0x0LL))
55         return 1;
56     if (test__moddi3(0x8000000000000000LL, 3, -2))
57         return 1;
58     if (test__moddi3(0x8000000000000000LL, -3, -2))
59         return 1;
60 
61     return 0;
62 }
63