1 // RUN: %clang_builtins %s %librt -o %t && %run %t
2 // REQUIRES: librt_has_addvsi3
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 si_int __addvsi3(si_int a, si_int b);
12
test__addvsi3(si_int a,si_int b)13 int test__addvsi3(si_int a, si_int b)
14 {
15 si_int x = __addvsi3(a, b);
16 si_int expected = a + b;
17 if (x != expected)
18 printf("error in test__addvsi3(0x%X, 0x%X) = %d, expected %d\n",
19 a, b, x, expected);
20 return x != expected;
21 }
22
main()23 int main()
24 {
25 // test__addvsi3(0x80000000, -1); // should abort
26 // test__addvsi3(-1, 0x80000000); // should abort
27 // test__addvsi3(1, 0x7FFFFFFF); // should abort
28 // test__addvsi3(0x7FFFFFFF, 1); // should abort
29
30 if (test__addvsi3(0x80000000, 1))
31 return 1;
32 if (test__addvsi3(1, 0x80000000))
33 return 1;
34 if (test__addvsi3(0x80000000, 0))
35 return 1;
36 if (test__addvsi3(0, 0x80000000))
37 return 1;
38 if (test__addvsi3(0x7FFFFFFF, -1))
39 return 1;
40 if (test__addvsi3(-1, 0x7FFFFFFF))
41 return 1;
42 if (test__addvsi3(0x7FFFFFFF, 0))
43 return 1;
44 if (test__addvsi3(0, 0x7FFFFFFF))
45 return 1;
46
47 return 0;
48 }
49