1 | // RUN: %clang_builtins %s %librt -o %t && %run %t |
2 | // REQUIRES: librt_has_umodti3 |
3 | // REQUIRES: int128 |
4 | |
5 | #include "int_lib.h" |
6 | #include <stdio.h> |
7 | |
8 | #ifdef CRT_HAS_128BIT |
9 | |
10 | // Returns: a % b |
11 | |
12 | COMPILER_RT_ABI tu_int __umodti3(tu_int a, tu_int b); |
13 | |
14 | int test__umodti3(tu_int a, tu_int b, tu_int expected_r) |
15 | { |
16 | tu_int r = __umodti3(a, b); |
17 | if (r != expected_r) |
18 | { |
19 | utwords at; |
20 | at.all = a; |
21 | utwords bt; |
22 | bt.all = b; |
23 | utwords rt; |
24 | rt.all = r; |
25 | utwords expected_rt; |
26 | expected_rt.all = expected_r; |
27 | printf(format: "error in __umodti3: 0x%llX%.16llX %% 0x%llX%.16llX = " |
28 | "0x%llX%.16llX, expected 0x%llX%.16llX\n" , |
29 | at.s.high, at.s.low, bt.s.high, bt.s.low, rt.s.high, rt.s.low, |
30 | expected_rt.s.high, expected_rt.s.low); |
31 | } |
32 | return r != expected_r; |
33 | } |
34 | |
35 | #endif |
36 | |
37 | int main() |
38 | { |
39 | #ifdef CRT_HAS_128BIT |
40 | if (test__umodti3(a: 0, b: 1, expected_r: 0)) |
41 | return 1; |
42 | if (test__umodti3(a: 2, b: 1, expected_r: 0)) |
43 | return 1; |
44 | if (test__umodti3(a: make_tu(h: 0x8000000000000000uLL, l: 0), b: 1, expected_r: 0x0uLL)) |
45 | return 1; |
46 | if (test__umodti3(a: make_tu(h: 0x8000000000000000uLL, l: 0), b: 2, expected_r: 0x0uLL)) |
47 | return 1; |
48 | if (test__umodti3(a: make_tu(h: 0xFFFFFFFFFFFFFFFFuLL, l: 0xFFFFFFFFFFFFFFFFuLL), |
49 | b: 2, expected_r: 0x1uLL)) |
50 | return 1; |
51 | |
52 | #else |
53 | printf("skipped\n" ); |
54 | #endif |
55 | return 0; |
56 | } |
57 | |