1// RUN: %clang_builtins %s %librt -o %t && %run %t
2// REQUIRES: librt_has_subvdi3
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
12COMPILER_RT_ABI di_int __subvdi3(di_int a, di_int b);
13
14int test__subvdi3(di_int a, di_int b)
15{
16 di_int x = __subvdi3(a, b);
17 di_int expected = a - b;
18 if (x != expected)
19 printf("error in test__subvsi3(0x%llX, 0x%llX) = %lld, expected %lld\n",
20 a, b, x, expected);
21 return x != expected;
22}
23
24int main()
25{
26// test__subvdi3(0x8000000000000000LL, 1); // should abort
27// test__subvdi3(0, 0x8000000000000000LL); // should abort
28// test__subvdi3(1, 0x8000000000000000LL); // should abort
29// test__subvdi3(0x7FFFFFFFFFFFFFFFLL, -1); // should abort
30// test__subvdi3(-2, 0x7FFFFFFFFFFFFFFFLL); // should abort
31
32 if (test__subvdi3(0x8000000000000000LL, -1))
33 return 1;
34 if (test__subvdi3(0x8000000000000000LL, 0))
35 return 1;
36 if (test__subvdi3(-1, 0x8000000000000000LL))
37 return 1;
38 if (test__subvdi3(0x7FFFFFFFFFFFFFFLL, 1))
39 return 1;
40 if (test__subvdi3(0x7FFFFFFFFFFFFFFFLL, 0))
41 return 1;
42 if (test__subvdi3(1, 0x7FFFFFFFFFFFFFFLL))
43 return 1;
44 if (test__subvdi3(0, 0x7FFFFFFFFFFFFFFFLL))
45 return 1;
46 if (test__subvdi3(-1, 0x7FFFFFFFFFFFFFFFLL))
47 return 1;
48
49 return 0;
50}
51