1 //===-- subvdi3_test.c - Test __subvdi3 -----------------------------------===//
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 __subvdi3 for the compiler_rt library.
11 //
12 //===----------------------------------------------------------------------===//
13
14 #include "int_lib.h"
15 #include <stdio.h>
16 #include <stdlib.h>
17
18 // Returns: a - b
19
20 // Effects: aborts if a - b overflows
21
22 di_int __subvdi3(di_int a, di_int b);
23
test__subvdi3(di_int a,di_int b)24 int test__subvdi3(di_int a, di_int b)
25 {
26 di_int x = __subvdi3(a, b);
27 di_int expected = a - b;
28 if (x != expected)
29 printf("error in test__subvsi3(0x%llX, 0x%llX) = %lld, expected %lld\n",
30 a, b, x, expected);
31 return x != expected;
32 }
33
main()34 int main()
35 {
36 // test__subvdi3(0x8000000000000000LL, 1); // should abort
37 // test__subvdi3(0, 0x8000000000000000LL); // should abort
38 // test__subvdi3(1, 0x8000000000000000LL); // should abort
39 // test__subvdi3(0x7FFFFFFFFFFFFFFFLL, -1); // should abort
40 // test__subvdi3(-2, 0x7FFFFFFFFFFFFFFFLL); // should abort
41
42 if (test__subvdi3(0x8000000000000000LL, -1))
43 return 1;
44 if (test__subvdi3(0x8000000000000000LL, 0))
45 return 1;
46 if (test__subvdi3(-1, 0x8000000000000000LL))
47 return 1;
48 if (test__subvdi3(0x7FFFFFFFFFFFFFFLL, 1))
49 return 1;
50 if (test__subvdi3(0x7FFFFFFFFFFFFFFFLL, 0))
51 return 1;
52 if (test__subvdi3(1, 0x7FFFFFFFFFFFFFFLL))
53 return 1;
54 if (test__subvdi3(0, 0x7FFFFFFFFFFFFFFFLL))
55 return 1;
56 if (test__subvdi3(-1, 0x7FFFFFFFFFFFFFFFLL))
57 return 1;
58
59 return 0;
60 }
61