| 1 | // RUN: %clang_builtins %s %librt -o %t && %run %t |
|---|---|
| 2 | // REQUIRES: librt_has_negvdi2 |
| 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 di_int __negvdi2(di_int a); |
| 12 | |
| 13 | int test__negvdi2(di_int a) |
| 14 | { |
| 15 | di_int x = __negvdi2(a); |
| 16 | di_int expected = -a; |
| 17 | if (x != expected) |
| 18 | printf(format: "error in __negvdi2(0x%llX) = %lld, expected %lld\n", |
| 19 | a, x, expected); |
| 20 | return x != expected; |
| 21 | } |
| 22 | |
| 23 | int main() |
| 24 | { |
| 25 | // if (test__negvdi2(0x8000000000000000LL)) // should abort |
| 26 | // return 1; |
| 27 | if (test__negvdi2(a: 0x0000000000000000LL)) |
| 28 | return 1; |
| 29 | if (test__negvdi2(a: 0x0000000000000001LL)) |
| 30 | return 1; |
| 31 | if (test__negvdi2(a: 0x0000000000000002LL)) |
| 32 | return 1; |
| 33 | if (test__negvdi2(a: 0x7FFFFFFFFFFFFFFELL)) |
| 34 | return 1; |
| 35 | if (test__negvdi2(a: 0x7FFFFFFFFFFFFFFFLL)) |
| 36 | return 1; |
| 37 | if (test__negvdi2(a: 0x8000000000000001LL)) |
| 38 | return 1; |
| 39 | if (test__negvdi2(a: 0x8000000000000002LL)) |
| 40 | return 1; |
| 41 | if (test__negvdi2(a: 0xFFFFFFFFFFFFFFFELL)) |
| 42 | return 1; |
| 43 | if (test__negvdi2(a: 0xFFFFFFFFFFFFFFFFLL)) |
| 44 | return 1; |
| 45 | |
| 46 | return 0; |
| 47 | } |
| 48 |