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1 //===-- absvdi2_test.c - Test __absvdi2 -----------------------------------===//
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 __absvdi2 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 COMPILER_RT_ABI di_int __absvdi2(di_int a);
23 
test__absvdi2(di_int a)24 int test__absvdi2(di_int a)
25 {
26     di_int x = __absvdi2(a);
27     di_int expected = a;
28     if (expected < 0)
29         expected = -expected;
30     if (x != expected || expected < 0)
31         printf("error in __absvdi2(0x%llX) = %lld, expected positive %lld\n",
32                a, x, expected);
33     return x != expected;
34 }
35 
main()36 int main()
37 {
38 //     if (test__absvdi2(0x8000000000000000LL))  // should abort
39 //         return 1;
40     if (test__absvdi2(0x0000000000000000LL))
41         return 1;
42     if (test__absvdi2(0x0000000000000001LL))
43         return 1;
44     if (test__absvdi2(0x0000000000000002LL))
45         return 1;
46     if (test__absvdi2(0x7FFFFFFFFFFFFFFELL))
47         return 1;
48     if (test__absvdi2(0x7FFFFFFFFFFFFFFFLL))
49         return 1;
50     if (test__absvdi2(0x8000000000000001LL))
51         return 1;
52     if (test__absvdi2(0x8000000000000002LL))
53         return 1;
54     if (test__absvdi2(0xFFFFFFFFFFFFFFFELL))
55         return 1;
56     if (test__absvdi2(0xFFFFFFFFFFFFFFFFLL))
57         return 1;
58 
59     int i;
60     for (i = 0; i < 10000; ++i)
61         if (test__absvdi2(((di_int)rand() << 32) | rand()))
62             return 1;
63 
64     return 0;
65 }
66