| 1 | // RUN: %clang_builtins %s %librt -o %t && %run %t |
|---|---|
| 2 | // REQUIRES: librt_has_negvsi2 |
| 3 | |
| 4 | #include "int_lib.h" |
| 5 | #include <stdio.h> |
| 6 | |
| 7 | // Returns: -a |
| 8 | |
| 9 | // Effects: aborts if -a overflows |
| 10 | |
| 11 | COMPILER_RT_ABI si_int __negvsi2(si_int a); |
| 12 | |
| 13 | int test__negvsi2(si_int a) |
| 14 | { |
| 15 | si_int x = __negvsi2(a); |
| 16 | si_int expected = -a; |
| 17 | if (x != expected) |
| 18 | printf(format: "error in __negvsi2(0x%X) = %d, expected %d\n", a, x, expected); |
| 19 | return x != expected; |
| 20 | } |
| 21 | |
| 22 | int main() |
| 23 | { |
| 24 | // if (test__negvsi2(0x80000000)) // should abort |
| 25 | // return 1; |
| 26 | if (test__negvsi2(a: 0x00000000)) |
| 27 | return 1; |
| 28 | if (test__negvsi2(a: 0x00000001)) |
| 29 | return 1; |
| 30 | if (test__negvsi2(a: 0x00000002)) |
| 31 | return 1; |
| 32 | if (test__negvsi2(a: 0x7FFFFFFE)) |
| 33 | return 1; |
| 34 | if (test__negvsi2(a: 0x7FFFFFFF)) |
| 35 | return 1; |
| 36 | if (test__negvsi2(a: 0x80000001)) |
| 37 | return 1; |
| 38 | if (test__negvsi2(a: 0x80000002)) |
| 39 | return 1; |
| 40 | if (test__negvsi2(a: 0xFFFFFFFE)) |
| 41 | return 1; |
| 42 | if (test__negvsi2(a: 0xFFFFFFFF)) |
| 43 | return 1; |
| 44 | |
| 45 | return 0; |
| 46 | } |
| 47 |