1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
// RUN: %clang_builtins %s %librt -o %t && %run %t
// REQUIRES: librt_has_addvsi3
#include "int_lib.h"
#include <stdio.h>
// Returns: a + b
// Effects: aborts if a + b overflows
COMPILER_RT_ABI si_int __addvsi3(si_int a, si_int b);
int test__addvsi3(si_int a, si_int b)
{
si_int x = __addvsi3(a, b);
si_int expected = a + b;
if (x != expected)
printf("error in test__addvsi3(0x%X, 0x%X) = %d, expected %d\n",
a, b, x, expected);
return x != expected;
}
int main()
{
// test__addvsi3(0x80000000, -1); // should abort
// test__addvsi3(-1, 0x80000000); // should abort
// test__addvsi3(1, 0x7FFFFFFF); // should abort
// test__addvsi3(0x7FFFFFFF, 1); // should abort
if (test__addvsi3(0x80000000, 1))
return 1;
if (test__addvsi3(1, 0x80000000))
return 1;
if (test__addvsi3(0x80000000, 0))
return 1;
if (test__addvsi3(0, 0x80000000))
return 1;
if (test__addvsi3(0x7FFFFFFF, -1))
return 1;
if (test__addvsi3(-1, 0x7FFFFFFF))
return 1;
if (test__addvsi3(0x7FFFFFFF, 0))
return 1;
if (test__addvsi3(0, 0x7FFFFFFF))
return 1;
return 0;
}
|
