1//===-- subvdi3_test.c - Test __subvdi3 -----------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. 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
22di_int __subvdi3(di_int a, di_int b);
23
24int 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
34int 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