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// RUN: %clang_builtins %s %librt -o %t && %run %t
// REQUIRES: librt_has_absvsi2
//===-- absvsi2_test.c - Test __absvsi2 -----------------------------------===//
//
// 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 __absvsi2 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 si_int __absvsi2(si_int a);
int test__absvsi2(si_int a)
{
si_int x = __absvsi2(a);
si_int expected = a;
if (expected < 0)
expected = -expected;
if (x != expected || expected < 0)
printf("error in __absvsi2(0x%X) = %d, expected positive %d\n",
a, x, expected);
return x != expected;
}
int main()
{
// if (test__absvsi2(0x80000000)) // should abort
// return 1;
if (test__absvsi2(0x00000000))
return 1;
if (test__absvsi2(0x00000001))
return 1;
if (test__absvsi2(0x00000002))
return 1;
if (test__absvsi2(0x7FFFFFFE))
return 1;
if (test__absvsi2(0x7FFFFFFF))
return 1;
if (test__absvsi2(0x80000001))
return 1;
if (test__absvsi2(0x80000002))
return 1;
if (test__absvsi2(0xFFFFFFFE))
return 1;
if (test__absvsi2(0xFFFFFFFF))
return 1;
int i;
for (i = 0; i < 10000; ++i)
if (test__absvsi2(rand()))
return 1;
return 0;
}
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