1 | // RUN: %clang_builtins %s %librt -o %t && %run %t |
2 | // REQUIRES: librt_has_subvsi3 |
3 | |
4 | #include "int_lib.h" |
5 | #include <stdio.h> |
6 | #include <stdlib.h> |
7 | |
8 | // Returns: a - b |
9 | |
10 | // Effects: aborts if a - b overflows |
11 | |
12 | COMPILER_RT_ABI si_int __subvsi3(si_int a, si_int b); |
13 | |
14 | int test__subvsi3(si_int a, si_int b) |
15 | { |
16 | si_int x = __subvsi3(a, b); |
17 | si_int expected = a - b; |
18 | if (x != expected) |
19 | printf(format: "error in test__subvsi3(0x%X, 0x%X) = %d, expected %d\n" , |
20 | a, b, x, expected); |
21 | return x != expected; |
22 | } |
23 | |
24 | int main() |
25 | { |
26 | // test__subvsi3(0x80000000, 1); // should abort |
27 | // test__subvsi3(0, 0x80000000); // should abort |
28 | // test__subvsi3(1, 0x80000000); // should abort |
29 | // test__subvsi3(0x7FFFFFFF, -1); // should abort |
30 | // test__subvsi3(-2, 0x7FFFFFFF); // should abort |
31 | |
32 | if (test__subvsi3(a: 0x80000000, b: -1)) |
33 | return 1; |
34 | if (test__subvsi3(a: 0x80000000, b: 0)) |
35 | return 1; |
36 | if (test__subvsi3(a: -1, b: 0x80000000)) |
37 | return 1; |
38 | if (test__subvsi3(a: 0x7FFFFFFF, b: 1)) |
39 | return 1; |
40 | if (test__subvsi3(a: 0x7FFFFFFF, b: 0)) |
41 | return 1; |
42 | if (test__subvsi3(a: 1, b: 0x7FFFFFFF)) |
43 | return 1; |
44 | if (test__subvsi3(a: 0, b: 0x7FFFFFFF)) |
45 | return 1; |
46 | if (test__subvsi3(a: -1, b: 0x7FFFFFFF)) |
47 | return 1; |
48 | |
49 | return 0; |
50 | } |
51 | |