| Daniel Dunbar | fd08999 | 2009-06-26 16:47:03 +0000 | [diff] [blame^] | 1 | //===-- absvsi2_test.c - Test __absvsi2 -----------------------------------===// |
| 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 __absvsi2 for the compiler_rt library. |
| 11 | // |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | |
| 14 | #include "int_lib.h" |
| 15 | #include <stdio.h> |
| 16 | |
| 17 | // Returns: absolute value |
| 18 | |
| 19 | // Effects: aborts if abs(x) < 0 |
| 20 | |
| 21 | si_int __absvsi2(si_int a); |
| 22 | |
| 23 | int test__absvsi2(si_int a) |
| 24 | { |
| 25 | si_int x = __absvsi2(a); |
| 26 | si_int expected = a; |
| 27 | if (expected < 0) |
| 28 | expected = -expected; |
| 29 | if (x != expected || expected < 0) |
| 30 | printf("error in __absvsi2(0x%X) = %d, expected positive %d\n", |
| 31 | a, x, expected); |
| 32 | return x != expected; |
| 33 | } |
| 34 | |
| 35 | int main() |
| 36 | { |
| 37 | // if (test__absvsi2(0x80000000)) // should abort |
| 38 | // return 1; |
| 39 | if (test__absvsi2(0x00000000)) |
| 40 | return 1; |
| 41 | if (test__absvsi2(0x00000001)) |
| 42 | return 1; |
| 43 | if (test__absvsi2(0x00000002)) |
| 44 | return 1; |
| 45 | if (test__absvsi2(0x7FFFFFFE)) |
| 46 | return 1; |
| 47 | if (test__absvsi2(0x7FFFFFFF)) |
| 48 | return 1; |
| 49 | if (test__absvsi2(0x80000001)) |
| 50 | return 1; |
| 51 | if (test__absvsi2(0x80000002)) |
| 52 | return 1; |
| 53 | if (test__absvsi2(0xFFFFFFFE)) |
| 54 | return 1; |
| 55 | if (test__absvsi2(0xFFFFFFFF)) |
| 56 | return 1; |
| 57 | |
| 58 | int i; |
| 59 | for (i = 0; i < 10000; ++i) |
| 60 | if (test__absvsi2(rand())) |
| 61 | return 1; |
| 62 | |
| 63 | return 0; |
| 64 | } |