1 //===-- negvsi2_test.c - Test __negvsi2 -----------------------------------===//
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 __negvsi2 for the compiler_rt library.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #include "int_lib.h"
15 #include <stdio.h>
16 
17 // Returns: -a
18 
19 // Effects: aborts if -a overflows
20 
21 si_int __negvsi2(si_int a);
22 
23 int test__negvsi2(si_int a)
24 {
25     si_int x = __negvsi2(a);
26     si_int expected = -a;
27     if (x != expected)
28         printf("error in __negvsi2(0x%X) = %d, expected %d\n", a, x, expected);
29     return x != expected;
30 }
31 
32 int main()
33 {
34 //     if (test__negvsi2(0x80000000))  // should abort
35 //         return 1;
36     if (test__negvsi2(0x00000000))
37         return 1;
38     if (test__negvsi2(0x00000001))
39         return 1;
40     if (test__negvsi2(0x00000002))
41         return 1;
42     if (test__negvsi2(0x7FFFFFFE))
43         return 1;
44     if (test__negvsi2(0x7FFFFFFF))
45         return 1;
46     if (test__negvsi2(0x80000001))
47         return 1;
48     if (test__negvsi2(0x80000002))
49         return 1;
50     if (test__negvsi2(0xFFFFFFFE))
51         return 1;
52     if (test__negvsi2(0xFFFFFFFF))
53         return 1;
54 
55     return 0;
56 }
57