1 // RUN: %clang_builtins %s %librt -o %t && %run %t
2 //===-- cmpdi2_test.c - Test __cmpdi2 -------------------------------------===//
3 //
4 //                     The LLVM Compiler Infrastructure
5 //
6 // This file is dual licensed under the MIT and the University of Illinois Open
7 // Source Licenses. See LICENSE.TXT for details.
8 //
9 //===----------------------------------------------------------------------===//
10 //
11 // This file tests __cmpdi2 for the compiler_rt library.
12 //
13 //===----------------------------------------------------------------------===//
14 
15 #include "int_lib.h"
16 #include <stdio.h>
17 
18 // Returns:  if (a <  b) returns 0
19 //           if (a == b) returns 1
20 //           if (a >  b) returns 2
21 
22 COMPILER_RT_ABI si_int __cmpdi2(di_int a, di_int b);
23 
24 int test__cmpdi2(di_int a, di_int b, si_int expected)
25 {
26     si_int x = __cmpdi2(a, b);
27     if (x != expected)
28         printf("error in __cmpdi2(0x%llX, 0x%llX) = %d, expected %d\n",
29                a, b, x, expected);
30     return x != expected;
31 }
32 
33 char assumption_1[sizeof(di_int) == 2*sizeof(si_int)] = {0};
34 
35 int main()
36 {
37     if (test__cmpdi2(0, 0, 1))
38         return 1;
39     if (test__cmpdi2(1, 1, 1))
40         return 1;
41     if (test__cmpdi2(2, 2, 1))
42         return 1;
43     if (test__cmpdi2(0x7FFFFFFF, 0x7FFFFFFF, 1))
44         return 1;
45     if (test__cmpdi2(0x80000000, 0x80000000, 1))
46         return 1;
47     if (test__cmpdi2(0x80000001, 0x80000001, 1))
48         return 1;
49     if (test__cmpdi2(0xFFFFFFFF, 0xFFFFFFFF, 1))
50         return 1;
51     if (test__cmpdi2(0x000000010000000LL, 0x000000010000000LL, 1))
52         return 1;
53     if (test__cmpdi2(0xFFFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL, 1))
54         return 1;
55 
56     if (test__cmpdi2(0x0000000200000002LL, 0x0000000300000001LL, 0))
57         return 1;
58     if (test__cmpdi2(0x0000000200000002LL, 0x0000000300000002LL, 0))
59         return 1;
60     if (test__cmpdi2(0x0000000200000002LL, 0x0000000300000003LL, 0))
61         return 1;
62 
63     if (test__cmpdi2(0x0000000200000002LL, 0x0000000100000001LL, 2))
64         return 1;
65     if (test__cmpdi2(0x0000000200000002LL, 0x0000000100000002LL, 2))
66         return 1;
67     if (test__cmpdi2(0x0000000200000002LL, 0x0000000100000003LL, 2))
68         return 1;
69 
70     if (test__cmpdi2(0x0000000200000002LL, 0x0000000200000001LL, 2))
71         return 1;
72     if (test__cmpdi2(0x0000000200000002LL, 0x0000000200000002LL, 1))
73         return 1;
74     if (test__cmpdi2(0x0000000200000002LL, 0x0000000200000003LL, 0))
75         return 1;
76 
77    return 0;
78 }
79