1 // RUN: %clang_builtins %s %librt -o %t && %run %t
2 // REQUIRES: librt_has_addvdi3
3
4 #include "int_lib.h"
5 #include <stdio.h>
6
7 // Returns: a + b
8
9 // Effects: aborts if a + b overflows
10
11 COMPILER_RT_ABI di_int __addvdi3(di_int a, di_int b);
12
test__addvdi3(di_int a,di_int b)13 int test__addvdi3(di_int a, di_int b)
14 {
15 di_int x = __addvdi3(a, b);
16 di_int expected = a + b;
17 if (x != expected)
18 printf("error in test__addvdi3(0x%llX, 0x%llX) = %lld, expected %lld\n",
19 a, b, x, expected);
20 return x != expected;
21 }
22
main()23 int main()
24 {
25 // test__addvdi3(0x8000000000000000LL, -1); // should abort
26 // test__addvdi3(-1, 0x8000000000000000LL); // should abort
27 // test__addvdi3(1, 0x7FFFFFFFFFFFFFFFLL); // should abort
28 // test__addvdi3(0x7FFFFFFFFFFFFFFFLL, 1); // should abort
29
30 if (test__addvdi3(0x8000000000000000LL, 1))
31 return 1;
32 if (test__addvdi3(1, 0x8000000000000000LL))
33 return 1;
34 if (test__addvdi3(0x8000000000000000LL, 0))
35 return 1;
36 if (test__addvdi3(0, 0x8000000000000000LL))
37 return 1;
38 if (test__addvdi3(0x7FFFFFFFFFFFFFFLL, -1))
39 return 1;
40 if (test__addvdi3(-1, 0x7FFFFFFFFFFFFFFLL))
41 return 1;
42 if (test__addvdi3(0x7FFFFFFFFFFFFFFFLL, 0))
43 return 1;
44 if (test__addvdi3(0, 0x7FFFFFFFFFFFFFFFLL))
45 return 1;
46
47 return 0;
48 }
49