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_addvdi3
#include "int_lib.h"
#include <stdio.h>
// Returns: a + b
// Effects: aborts if a + b overflows
COMPILER_RT_ABI di_int __addvdi3(di_int a, di_int b);
int test__addvdi3(di_int a, di_int b)
{
di_int x = __addvdi3(a, b);
di_int expected = a + b;
if (x != expected)
printf("error in test__addvdi3(0x%llX, 0x%llX) = %lld, expected %lld\n",
a, b, x, expected);
return x != expected;
}
int main()
{
// test__addvdi3(0x8000000000000000LL, -1); // should abort
// test__addvdi3(-1, 0x8000000000000000LL); // should abort
// test__addvdi3(1, 0x7FFFFFFFFFFFFFFFLL); // should abort
// test__addvdi3(0x7FFFFFFFFFFFFFFFLL, 1); // should abort
if (test__addvdi3(0x8000000000000000LL, 1))
return 1;
if (test__addvdi3(1, 0x8000000000000000LL))
return 1;
if (test__addvdi3(0x8000000000000000LL, 0))
return 1;
if (test__addvdi3(0, 0x8000000000000000LL))
return 1;
if (test__addvdi3(0x7FFFFFFFFFFFFFFLL, -1))
return 1;
if (test__addvdi3(-1, 0x7FFFFFFFFFFFFFFLL))
return 1;
if (test__addvdi3(0x7FFFFFFFFFFFFFFFLL, 0))
return 1;
if (test__addvdi3(0, 0x7FFFFFFFFFFFFFFFLL))
return 1;
return 0;
}
|
