1// RUN: %clang_builtins %s %librt -o %t && %run %t
2// REQUIRES: librt_has_absvdi2
3
4#include "int_lib.h"
5#include <stdio.h>
6#include <stdlib.h>
7
8// Returns: absolute value
9
10// Effects: aborts if abs(x) < 0
11
12COMPILER_RT_ABI di_int __absvdi2(di_int a);
13
14int test__absvdi2(di_int a)
15{
16 di_int x = __absvdi2(a);
17 di_int expected = a;
18 if (expected < 0)
19 expected = -expected;
20 if (x != expected || expected < 0)
21 printf("error in __absvdi2(0x%llX) = %lld, expected positive %lld\n",
22 a, x, expected);
23 return x != expected;
24}
25
26int main()
27{
28// if (test__absvdi2(0x8000000000000000LL)) // should abort
29// return 1;
30 if (test__absvdi2(0x0000000000000000LL))
31 return 1;
32 if (test__absvdi2(0x0000000000000001LL))
33 return 1;
34 if (test__absvdi2(0x0000000000000002LL))
35 return 1;
36 if (test__absvdi2(0x7FFFFFFFFFFFFFFELL))
37 return 1;
38 if (test__absvdi2(0x7FFFFFFFFFFFFFFFLL))
39 return 1;
40 if (test__absvdi2(0x8000000000000001LL))
41 return 1;
42 if (test__absvdi2(0x8000000000000002LL))
43 return 1;
44 if (test__absvdi2(0xFFFFFFFFFFFFFFFELL))
45 return 1;
46 if (test__absvdi2(0xFFFFFFFFFFFFFFFFLL))
47 return 1;
48
49 int i;
50 for (i = 0; i < 10000; ++i)
51 if (test__absvdi2(((di_int)rand() << 32) | rand()))
52 return 1;
53
54 return 0;
55}
56