1 //===-- absvsi2_test.c - Test __absvsi2 -----------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file tests __absvsi2 for the compiler_rt library.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #include "int_lib.h"
15 #include <stdio.h>
16 #include <stdlib.h>
17 
18 // Returns: absolute value
19 
20 // Effects: aborts if abs(x) < 0
21 
22 si_int __absvsi2(si_int a);
23 
test__absvsi2(si_int a)24 int test__absvsi2(si_int a)
25 {
26     si_int x = __absvsi2(a);
27     si_int expected = a;
28     if (expected < 0)
29         expected = -expected;
30     if (x != expected || expected < 0)
31         printf("error in __absvsi2(0x%X) = %d, expected positive %d\n",
32                a, x, expected);
33     return x != expected;
34 }
35 
main()36 int main()
37 {
38 //     if (test__absvsi2(0x80000000))  // should abort
39 //         return 1;
40     if (test__absvsi2(0x00000000))
41         return 1;
42     if (test__absvsi2(0x00000001))
43         return 1;
44     if (test__absvsi2(0x00000002))
45         return 1;
46     if (test__absvsi2(0x7FFFFFFE))
47         return 1;
48     if (test__absvsi2(0x7FFFFFFF))
49         return 1;
50     if (test__absvsi2(0x80000001))
51         return 1;
52     if (test__absvsi2(0x80000002))
53         return 1;
54     if (test__absvsi2(0xFFFFFFFE))
55         return 1;
56     if (test__absvsi2(0xFFFFFFFF))
57         return 1;
58 
59     int i;
60     for (i = 0; i < 10000; ++i)
61         if (test__absvsi2(rand()))
62             return 1;
63 
64     return 0;
65 }
66