1//===-- umodti3_test.c - Test __umodti3 -----------------------------------===//
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 __umodti3 for the compiler_rt library.
11//
12//===----------------------------------------------------------------------===//
13
14#include "int_lib.h"
15#include <stdio.h>
16
17#ifdef CRT_HAS_128BIT
18
19// Returns: a % b
20
21COMPILER_RT_ABI tu_int __umodti3(tu_int a, tu_int b);
22
23int test__umodti3(tu_int a, tu_int b, tu_int expected_r)
24{
25    tu_int r = __umodti3(a, b);
26    if (r != expected_r)
27    {
28        utwords at;
29        at.all = a;
30        utwords bt;
31        bt.all = b;
32        utwords rt;
33        rt.all = r;
34        utwords expected_rt;
35        expected_rt.all = expected_r;
36        printf("error in __umodti3: 0x%llX%.16llX %% 0x%llX%.16llX = "
37               "0x%llX%.16llX, expected 0x%llX%.16llX\n",
38               at.s.high, at.s.low, bt.s.high, bt.s.low, rt.s.high, rt.s.low,
39               expected_rt.s.high, expected_rt.s.low);
40    }
41    return r != expected_r;
42}
43
44#endif
45
46int main()
47{
48#ifdef CRT_HAS_128BIT
49    if (test__umodti3(0, 1, 0))
50        return 1;
51    if (test__umodti3(2, 1, 0))
52        return 1;
53    if (test__umodti3(make_tu(0x8000000000000000uLL, 0), 1, 0x0uLL))
54        return 1;
55    if (test__umodti3(make_tu(0x8000000000000000uLL, 0), 2, 0x0uLL))
56        return 1;
57    if (test__umodti3(make_tu(0xFFFFFFFFFFFFFFFFuLL, 0xFFFFFFFFFFFFFFFFuLL),
58                      2, 0x1uLL))
59        return 1;
60
61#else
62    printf("skipped\n");
63#endif
64    return 0;
65}
66