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// RUN: %clang_builtins %s %librt -o %t && %run %t
//===-- subvdi3_test.c - Test __subvdi3 -----------------------------------===//
//
// 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 __subvdi3 for the compiler_rt library.
//
//===----------------------------------------------------------------------===//
#include "int_lib.h"
#include <stdio.h>
#include <stdlib.h>
// Returns: a - b
// Effects: aborts if a - b overflows
COMPILER_RT_ABI di_int __subvdi3(di_int a, di_int b);
int test__subvdi3(di_int a, di_int b)
{
di_int x = __subvdi3(a, b);
di_int expected = a - b;
if (x != expected)
printf("error in test__subvsi3(0x%llX, 0x%llX) = %lld, expected %lld\n",
a, b, x, expected);
return x != expected;
}
int main()
{
// test__subvdi3(0x8000000000000000LL, 1); // should abort
// test__subvdi3(0, 0x8000000000000000LL); // should abort
// test__subvdi3(1, 0x8000000000000000LL); // should abort
// test__subvdi3(0x7FFFFFFFFFFFFFFFLL, -1); // should abort
// test__subvdi3(-2, 0x7FFFFFFFFFFFFFFFLL); // should abort
if (test__subvdi3(0x8000000000000000LL, -1))
return 1;
if (test__subvdi3(0x8000000000000000LL, 0))
return 1;
if (test__subvdi3(-1, 0x8000000000000000LL))
return 1;
if (test__subvdi3(0x7FFFFFFFFFFFFFFLL, 1))
return 1;
if (test__subvdi3(0x7FFFFFFFFFFFFFFFLL, 0))
return 1;
if (test__subvdi3(1, 0x7FFFFFFFFFFFFFFLL))
return 1;
if (test__subvdi3(0, 0x7FFFFFFFFFFFFFFFLL))
return 1;
if (test__subvdi3(-1, 0x7FFFFFFFFFFFFFFFLL))
return 1;
return 0;
}
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