1//===-- subvsi3_test.c - Test __subvsi3 -----------------------------------===//
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 __subvsi3 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
22si_int __subvsi3(si_int a, si_int b);
23
24int test__subvsi3(si_int a, si_int b)
25{
26    si_int x = __subvsi3(a, b);
27    si_int expected = a - b;
28    if (x != expected)
29        printf("error in test__subvsi3(0x%X, 0x%X) = %d, expected %d\n",
30               a, b, x, expected);
31    return x != expected;
32}
33
34int main()
35{
36//     test__subvsi3(0x80000000, 1);  // should abort
37//     test__subvsi3(0, 0x80000000);  // should abort
38//     test__subvsi3(1, 0x80000000);  // should abort
39//     test__subvsi3(0x7FFFFFFF, -1);  // should abort
40//     test__subvsi3(-2, 0x7FFFFFFF);  // should abort
41
42    if (test__subvsi3(0x80000000, -1))
43        return 1;
44    if (test__subvsi3(0x80000000, 0))
45        return 1;
46    if (test__subvsi3(-1, 0x80000000))
47        return 1;
48    if (test__subvsi3(0x7FFFFFFF, 1))
49        return 1;
50    if (test__subvsi3(0x7FFFFFFF, 0))
51        return 1;
52    if (test__subvsi3(1, 0x7FFFFFFF))
53        return 1;
54    if (test__subvsi3(0, 0x7FFFFFFF))
55        return 1;
56    if (test__subvsi3(-1, 0x7FFFFFFF))
57        return 1;
58
59    return 0;
60}
61