1 /* ===-- modsi3_test.c - Test __modsi3 -------------------------------------===
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 __modsi3 for the compiler_rt library.
11  *
12  * ===----------------------------------------------------------------------===
13  */
14 
15 #include "int_lib.h"
16 #include <stdio.h>
17 
18 /* Returns: a % b */
19 
20 si_int __modsi3(si_int a, si_int b);
21 
22 int test__modsi3(si_int a, si_int b, si_int expected) {
23     si_int x = __modsi3(a, b);
24     if (x != expected)
25         fprintf(stderr, "error in __modsi3: %d %% %d = %d, expected %d\n",
26                a, b, x, expected);
27     return x != expected;
28 }
29 
30 int main() {
31     if (test__modsi3(0, 1, 0))
32         return 1;
33     if (test__modsi3(0, -1, 0))
34         return 1;
35 
36     if (test__modsi3(5, 3, 2))
37         return 1;
38     if (test__modsi3(5, -3, 2))
39         return 1;
40     if (test__modsi3(-5, 3, -2))
41         return 1;
42     if (test__modsi3(-5, -3, -2))
43         return 1;
44 
45     if (test__modsi3(0x80000000, 1, 0x0))
46         return 1;
47     if (test__modsi3(0x80000000, 2, 0x0))
48         return 1;
49     if (test__modsi3(0x80000000, -2, 0x0))
50         return 1;
51     if (test__modsi3(0x80000000, 3, -2))
52         return 1;
53     if (test__modsi3(0x80000000, -3, -2))
54         return 1;
55 
56     return 0;
57 }
58