| // RUN: %clang_builtins %s %librt -o %t && %run %t |
| // REQUIRES: librt_has_absvti2 |
| // REQUIRES: int128 |
| |
| #include "int_lib.h" |
| #include <stdio.h> |
| #include <stdlib.h> |
| |
| #ifdef CRT_HAS_128BIT |
| |
| // Returns: absolute value |
| |
| // Effects: aborts if abs(x) < 0 |
| |
| COMPILER_RT_ABI ti_int __absvti2(ti_int a); |
| |
| int test__absvti2(ti_int a) |
| { |
| ti_int x = __absvti2(a); |
| ti_int expected = a; |
| if (expected < 0) |
| expected = -expected; |
| if (x != expected || expected < 0) |
| { |
| twords at; |
| at.all = a; |
| twords xt; |
| xt.all = x; |
| twords expectedt; |
| expectedt.all = expected; |
| printf("error in __absvti2(0x%llX%.16llX) = " |
| "0x%llX%.16llX, expected positive 0x%llX%.16llX\n", |
| at.s.high, at.s.low, xt.s.high, xt.s.low, |
| expectedt.s.high, expectedt.s.low); |
| } |
| return x != expected; |
| } |
| |
| #endif |
| |
| int main() |
| { |
| #ifdef CRT_HAS_128BIT |
| |
| // if (test__absvti2(make_ti(0x8000000000000000LL, 0))) // should abort |
| // return 1; |
| if (test__absvti2(0x0000000000000000LL)) |
| return 1; |
| if (test__absvti2(0x0000000000000001LL)) |
| return 1; |
| if (test__absvti2(0x0000000000000002LL)) |
| return 1; |
| if (test__absvti2(make_ti(0x7FFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFELL))) |
| return 1; |
| if (test__absvti2(make_ti(0x7FFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL))) |
| return 1; |
| if (test__absvti2(make_ti(0x8000000000000000LL, 0x0000000000000001LL))) |
| return 1; |
| if (test__absvti2(make_ti(0x8000000000000000LL, 0x0000000000000002LL))) |
| return 1; |
| if (test__absvti2(make_ti(0xFFFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFELL))) |
| return 1; |
| if (test__absvti2(make_ti(0xFFFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL))) |
| return 1; |
| |
| int i; |
| for (i = 0; i < 10000; ++i) |
| if (test__absvti2(make_ti(((ti_int)rand() << 32) | rand(), |
| ((ti_int)rand() << 32) | rand()))) |
| return 1; |
| #else |
| printf("skipped\n"); |
| #endif |
| return 0; |
| } |
