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| // RUN: %clang_builtins %s %librt -o %t && %run %t
// REQUIRES: librt_has_absvdi2
//===-- absvdi2_test.c - Test __absvdi2 -----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file tests __absvdi2 for the compiler_rt library.
//
//===----------------------------------------------------------------------===//
#include "int_lib.h"
#include <stdio.h>
#include <stdlib.h>
// Returns: absolute value
// Effects: aborts if abs(x) < 0
COMPILER_RT_ABI di_int __absvdi2(di_int a);
int test__absvdi2(di_int a)
{
di_int x = __absvdi2(a);
di_int expected = a;
if (expected < 0)
expected = -expected;
if (x != expected || expected < 0)
printf("error in __absvdi2(0x%llX) = %lld, expected positive %lld\n",
a, x, expected);
return x != expected;
}
int main()
{
// if (test__absvdi2(0x8000000000000000LL)) // should abort
// return 1;
if (test__absvdi2(0x0000000000000000LL))
return 1;
if (test__absvdi2(0x0000000000000001LL))
return 1;
if (test__absvdi2(0x0000000000000002LL))
return 1;
if (test__absvdi2(0x7FFFFFFFFFFFFFFELL))
return 1;
if (test__absvdi2(0x7FFFFFFFFFFFFFFFLL))
return 1;
if (test__absvdi2(0x8000000000000001LL))
return 1;
if (test__absvdi2(0x8000000000000002LL))
return 1;
if (test__absvdi2(0xFFFFFFFFFFFFFFFELL))
return 1;
if (test__absvdi2(0xFFFFFFFFFFFFFFFFLL))
return 1;
int i;
for (i = 0; i < 10000; ++i)
if (test__absvdi2(((di_int)rand() << 32) | rand()))
return 1;
return 0;
}
|