1// RUN: %clang_builtins %s %librt -o %t && %run %t
2// REQUIRES: librt_has_divmodsi4
3
4#include "int_lib.h"
5#include <stdio.h>
6
7// Returns: a / b
8
9extern COMPILER_RT_ABI si_int __divmodsi4(si_int a, si_int b, si_int* rem);
10
11
12int test__divmodsi4(si_int a, si_int b,
13 si_int expected_result, si_int expected_rem)
14{
15 si_int rem;
16 si_int result = __divmodsi4(a, b, rem: &rem);
17 if (result != expected_result) {
18 printf(format: "error in __divmodsi4: %d / %d = %d, expected %d\n",
19 a, b, result, expected_result);
20 return 1;
21 }
22 if (rem != expected_rem) {
23 printf(format: "error in __divmodsi4: %d mod %d = %d, expected %d\n",
24 a, b, rem, expected_rem);
25 return 1;
26 }
27
28 return 0;
29}
30
31
32int main()
33{
34 if (test__divmodsi4(a: 0, b: 1, expected_result: 0, expected_rem: 0))
35 return 1;
36 if (test__divmodsi4(a: 0, b: -1, expected_result: 0, expected_rem: 0))
37 return 1;
38
39 if (test__divmodsi4(a: 2, b: 1, expected_result: 2, expected_rem: 0))
40 return 1;
41 if (test__divmodsi4(a: 2, b: -1, expected_result: -2, expected_rem: 0))
42 return 1;
43 if (test__divmodsi4(a: -2, b: 1, expected_result: -2, expected_rem: 0))
44 return 1;
45 if (test__divmodsi4(a: -2, b: -1, expected_result: 2, expected_rem: 0))
46 return 1;
47
48 if (test__divmodsi4(a: 7, b: 5, expected_result: 1, expected_rem: 2))
49 return 1;
50 if (test__divmodsi4(a: -7, b: 5, expected_result: -1, expected_rem: -2))
51 return 1;
52 if (test__divmodsi4(a: 19, b: 5, expected_result: 3, expected_rem: 4))
53 return 1;
54 if (test__divmodsi4(a: 19, b: -5, expected_result: -3, expected_rem: 4))
55 return 1;
56
57 if (test__divmodsi4(a: 0x80000000, b: 8, expected_result: 0xf0000000, expected_rem: 0))
58 return 1;
59 if (test__divmodsi4(a: 0x80000007, b: 8, expected_result: 0xf0000001, expected_rem: -1))
60 return 1;
61
62 return 0;
63}
64

source code of compiler-rt/test/builtins/Unit/divmodsi4_test.c