1 //===-- negdi2_test.c - Test __negdi2 -------------------------------------===//
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 __negdi2 for the compiler_rt library.
11 //
12 //===----------------------------------------------------------------------===//
13
14 #include "int_lib.h"
15 #include <stdio.h>
16
17 // Returns: -a
18
19 COMPILER_RT_ABI di_int __negdi2(di_int a);
20
test__negdi2(di_int a,di_int expected)21 int test__negdi2(di_int a, di_int expected)
22 {
23 di_int x = __negdi2(a);
24 if (x != expected)
25 printf("error in __negdi2: -0x%llX = 0x%llX, expected 0x%llX\n",
26 a, x, expected);
27 return x != expected;
28 }
29
30 char assumption_1[sizeof(di_int) == 2*sizeof(si_int)] = {0};
31
main()32 int main()
33 {
34 if (test__negdi2(0, 0))
35 return 1;
36 if (test__negdi2(1, -1))
37 return 1;
38 if (test__negdi2(-1, 1))
39 return 1;
40 if (test__negdi2(2, -2))
41 return 1;
42 if (test__negdi2(-2, 2))
43 return 1;
44 if (test__negdi2(3, -3))
45 return 1;
46 if (test__negdi2(-3, 3))
47 return 1;
48 if (test__negdi2(0x00000000FFFFFFFELL, 0xFFFFFFFF00000002LL))
49 return 1;
50 if (test__negdi2(0xFFFFFFFF00000002LL, 0x00000000FFFFFFFELL))
51 return 1;
52 if (test__negdi2(0x00000000FFFFFFFFLL, 0xFFFFFFFF00000001LL))
53 return 1;
54 if (test__negdi2(0xFFFFFFFF00000001LL, 0x00000000FFFFFFFFLL))
55 return 1;
56 if (test__negdi2(0x0000000100000000LL, 0xFFFFFFFF00000000LL))
57 return 1;
58 if (test__negdi2(0xFFFFFFFF00000000LL, 0x0000000100000000LL))
59 return 1;
60 if (test__negdi2(0x0000000200000000LL, 0xFFFFFFFE00000000LL))
61 return 1;
62 if (test__negdi2(0xFFFFFFFE00000000LL, 0x0000000200000000LL))
63 return 1;
64 if (test__negdi2(0x0000000300000000LL, 0xFFFFFFFD00000000LL))
65 return 1;
66 if (test__negdi2(0xFFFFFFFD00000000LL, 0x0000000300000000LL))
67 return 1;
68 if (test__negdi2(0x8000000000000000LL, 0x8000000000000000LL))
69 return 1;
70 if (test__negdi2(0x8000000000000001LL, 0x7FFFFFFFFFFFFFFFLL))
71 return 1;
72 if (test__negdi2(0x7FFFFFFFFFFFFFFFLL, 0x8000000000000001LL))
73 return 1;
74 if (test__negdi2(0xFFFFFFFE00000000LL, 0x0000000200000000LL))
75 return 1;
76 if (test__negdi2(0x0000000200000000LL, 0xFFFFFFFE00000000LL))
77 return 1;
78 if (test__negdi2(0xFFFFFFFF00000000LL, 0x0000000100000000LL))
79 return 1;
80 if (test__negdi2(0x0000000100000000LL, 0xFFFFFFFF00000000LL))
81 return 1;
82
83 return 0;
84 }
85