| Daniel Dunbar | b3a6901 | 2009-06-26 16:47:03 +0000 | [diff] [blame] | 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 | |
| 22 | di_int __subvdi3(di_int a, di_int b); |
| 23 | |
| 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 | |
| 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 | } |