xref: /minix3/sys/external/bsd/compiler_rt/dist/test/Unit/subvsi3_test.c (revision 4684ddb6aab0b36791c8099bc705d6140b3d05d0)
1*4684ddb6SLionel Sambuc //===-- subvsi3_test.c - Test __subvsi3 -----------------------------------===//
2*4684ddb6SLionel Sambuc //
3*4684ddb6SLionel Sambuc //                     The LLVM Compiler Infrastructure
4*4684ddb6SLionel Sambuc //
5*4684ddb6SLionel Sambuc // This file is dual licensed under the MIT and the University of Illinois Open
6*4684ddb6SLionel Sambuc // Source Licenses. See LICENSE.TXT for details.
7*4684ddb6SLionel Sambuc //
8*4684ddb6SLionel Sambuc //===----------------------------------------------------------------------===//
9*4684ddb6SLionel Sambuc //
10*4684ddb6SLionel Sambuc // This file tests __subvsi3 for the compiler_rt library.
11*4684ddb6SLionel Sambuc //
12*4684ddb6SLionel Sambuc //===----------------------------------------------------------------------===//
13*4684ddb6SLionel Sambuc 
14*4684ddb6SLionel Sambuc #include "int_lib.h"
15*4684ddb6SLionel Sambuc #include <stdio.h>
16*4684ddb6SLionel Sambuc #include <stdlib.h>
17*4684ddb6SLionel Sambuc 
18*4684ddb6SLionel Sambuc // Returns: a - b
19*4684ddb6SLionel Sambuc 
20*4684ddb6SLionel Sambuc // Effects: aborts if a - b overflows
21*4684ddb6SLionel Sambuc 
22*4684ddb6SLionel Sambuc si_int __subvsi3(si_int a, si_int b);
23*4684ddb6SLionel Sambuc 
test__subvsi3(si_int a,si_int b)24*4684ddb6SLionel Sambuc int test__subvsi3(si_int a, si_int b)
25*4684ddb6SLionel Sambuc {
26*4684ddb6SLionel Sambuc     si_int x = __subvsi3(a, b);
27*4684ddb6SLionel Sambuc     si_int expected = a - b;
28*4684ddb6SLionel Sambuc     if (x != expected)
29*4684ddb6SLionel Sambuc         printf("error in test__subvsi3(0x%X, 0x%X) = %d, expected %d\n",
30*4684ddb6SLionel Sambuc                a, b, x, expected);
31*4684ddb6SLionel Sambuc     return x != expected;
32*4684ddb6SLionel Sambuc }
33*4684ddb6SLionel Sambuc 
main()34*4684ddb6SLionel Sambuc int main()
35*4684ddb6SLionel Sambuc {
36*4684ddb6SLionel Sambuc //     test__subvsi3(0x80000000, 1);  // should abort
37*4684ddb6SLionel Sambuc //     test__subvsi3(0, 0x80000000);  // should abort
38*4684ddb6SLionel Sambuc //     test__subvsi3(1, 0x80000000);  // should abort
39*4684ddb6SLionel Sambuc //     test__subvsi3(0x7FFFFFFF, -1);  // should abort
40*4684ddb6SLionel Sambuc //     test__subvsi3(-2, 0x7FFFFFFF);  // should abort
41*4684ddb6SLionel Sambuc 
42*4684ddb6SLionel Sambuc     if (test__subvsi3(0x80000000, -1))
43*4684ddb6SLionel Sambuc         return 1;
44*4684ddb6SLionel Sambuc     if (test__subvsi3(0x80000000, 0))
45*4684ddb6SLionel Sambuc         return 1;
46*4684ddb6SLionel Sambuc     if (test__subvsi3(-1, 0x80000000))
47*4684ddb6SLionel Sambuc         return 1;
48*4684ddb6SLionel Sambuc     if (test__subvsi3(0x7FFFFFFF, 1))
49*4684ddb6SLionel Sambuc         return 1;
50*4684ddb6SLionel Sambuc     if (test__subvsi3(0x7FFFFFFF, 0))
51*4684ddb6SLionel Sambuc         return 1;
52*4684ddb6SLionel Sambuc     if (test__subvsi3(1, 0x7FFFFFFF))
53*4684ddb6SLionel Sambuc         return 1;
54*4684ddb6SLionel Sambuc     if (test__subvsi3(0, 0x7FFFFFFF))
55*4684ddb6SLionel Sambuc         return 1;
56*4684ddb6SLionel Sambuc     if (test__subvsi3(-1, 0x7FFFFFFF))
57*4684ddb6SLionel Sambuc         return 1;
58*4684ddb6SLionel Sambuc 
59*4684ddb6SLionel Sambuc     return 0;
60*4684ddb6SLionel Sambuc }
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