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
22si_int __absvsi2(si_int a);
23
24int 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
36int 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