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// RUN: %clang_builtins %s %librt -o %t && %run %t
// REQUIRES: int128
//===-- absvti2_test.c - Test __absvti2 -----------------------------------===//
//
// 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 __absvti2 for the compiler_rt library.
//
//===----------------------------------------------------------------------===//
#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;
}
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