| 1 | // RUN: %clang_builtins %s %librt -o %t && %run %t |
|---|---|
| 2 | // REQUIRES: librt_has_absvdi2 |
| 3 | |
| 4 | #include "int_lib.h" |
| 5 | #include <stdio.h> |
| 6 | #include <stdlib.h> |
| 7 | |
| 8 | // Returns: absolute value |
| 9 | |
| 10 | // Effects: aborts if abs(x) < 0 |
| 11 | |
| 12 | COMPILER_RT_ABI di_int __absvdi2(di_int a); |
| 13 | |
| 14 | int test__absvdi2(di_int a) |
| 15 | { |
| 16 | di_int x = __absvdi2(a); |
| 17 | di_int expected = a; |
| 18 | if (expected < 0) |
| 19 | expected = -expected; |
| 20 | if (x != expected || expected < 0) |
| 21 | printf(format: "error in __absvdi2(0x%llX) = %lld, expected positive %lld\n", |
| 22 | a, x, expected); |
| 23 | return x != expected; |
| 24 | } |
| 25 | |
| 26 | int main() |
| 27 | { |
| 28 | // if (test__absvdi2(0x8000000000000000LL)) // should abort |
| 29 | // return 1; |
| 30 | if (test__absvdi2(a: 0x0000000000000000LL)) |
| 31 | return 1; |
| 32 | if (test__absvdi2(a: 0x0000000000000001LL)) |
| 33 | return 1; |
| 34 | if (test__absvdi2(a: 0x0000000000000002LL)) |
| 35 | return 1; |
| 36 | if (test__absvdi2(a: 0x7FFFFFFFFFFFFFFELL)) |
| 37 | return 1; |
| 38 | if (test__absvdi2(a: 0x7FFFFFFFFFFFFFFFLL)) |
| 39 | return 1; |
| 40 | if (test__absvdi2(a: 0x8000000000000001LL)) |
| 41 | return 1; |
| 42 | if (test__absvdi2(a: 0x8000000000000002LL)) |
| 43 | return 1; |
| 44 | if (test__absvdi2(a: 0xFFFFFFFFFFFFFFFELL)) |
| 45 | return 1; |
| 46 | if (test__absvdi2(a: 0xFFFFFFFFFFFFFFFFLL)) |
| 47 | return 1; |
| 48 | |
| 49 | int i; |
| 50 | for (i = 0; i < 10000; ++i) |
| 51 | if (test__absvdi2(a: ((di_int)rand() << 32) | rand())) |
| 52 | return 1; |
| 53 | |
| 54 | return 0; |
| 55 | } |
| 56 |