1 //===-- divmodsi4_test.c - Test __divmodsi4 -------------------------------===//
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 __divmodsi4 for the compiler_rt library.
11 //
12 //===----------------------------------------------------------------------===//
13
14 #include "int_lib.h"
15 #include <stdio.h>
16
17 // Returns: a / b
18
19 extern si_int __divmodsi4(si_int a, si_int b, si_int* rem);
20
21
test__divmodsi4(si_int a,si_int b,si_int expected_result,si_int expected_rem)22 int test__divmodsi4(si_int a, si_int b,
23 si_int expected_result, si_int expected_rem)
24 {
25 si_int rem;
26 si_int result = __divmodsi4(a, b, &rem);
27 if (result != expected_result) {
28 printf("error in __divmodsi4: %d / %d = %d, expected %d\n",
29 a, b, result, expected_result);
30 return 1;
31 }
32 if (rem != expected_rem) {
33 printf("error in __divmodsi4: %d mod %d = %d, expected %d\n",
34 a, b, rem, expected_rem);
35 return 1;
36 }
37
38 return 0;
39 }
40
41
main()42 int main()
43 {
44 if (test__divmodsi4(0, 1, 0, 0))
45 return 1;
46 if (test__divmodsi4(0, -1, 0, 0))
47 return 1;
48
49 if (test__divmodsi4(2, 1, 2, 0))
50 return 1;
51 if (test__divmodsi4(2, -1, -2, 0))
52 return 1;
53 if (test__divmodsi4(-2, 1, -2, 0))
54 return 1;
55 if (test__divmodsi4(-2, -1, 2, 0))
56 return 1;
57
58 if (test__divmodsi4(7, 5, 1, 2))
59 return 1;
60 if (test__divmodsi4(-7, 5, -1, -2))
61 return 1;
62 if (test__divmodsi4(19, 5, 3, 4))
63 return 1;
64 if (test__divmodsi4(19, -5, -3, 4))
65 return 1;
66
67 if (test__divmodsi4(0x80000000, 8, 0xf0000000, 0))
68 return 1;
69 if (test__divmodsi4(0x80000007, 8, 0xf0000001, -1))
70 return 1;
71
72 return 0;
73 }
74