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// REQUIRES-ANY: arm-target-arch,armv6m-target-arch
// RUN: %clang_builtins %s %librt -o %t && %run %t
//===-- aeabi_idivmod_test.c - Test __aeabi_idivmod -----------------------===//
//
// 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 __aeabi_idivmod for the compiler_rt library.
//
//===----------------------------------------------------------------------===//
#include "int_lib.h"
#include <stdio.h>
#if __arm__
// Based on divmodsi4_test.c
extern du_int __aeabi_idivmod(si_int a, si_int b);
int test__aeabi_idivmod(si_int a, si_int b,
si_int expected_result, si_int expected_rem)
{
si_int rem;
du_int ret = __aeabi_idivmod(a, b);
rem = ret >> 32;
si_int result = ret & 0xFFFFFFFF;
if (result != expected_result) {
printf("error in __aeabi_idivmod: %d / %d = %d, expected %d\n",
a, b, result, expected_result);
return 1;
}
if (rem != expected_rem) {
printf("error in __aeabi_idivmod: %d mod %d = %d, expected %d\n",
a, b, rem, expected_rem);
return 1;
}
return 0;
}
#endif
int main()
{
#if __arm__
if (test__aeabi_idivmod(0, 1, 0, 0))
return 1;
if (test__aeabi_idivmod(0, -1, 0, 0))
return 1;
if (test__aeabi_idivmod(2, 1, 2, 0))
return 1;
if (test__aeabi_idivmod(2, -1, -2, 0))
return 1;
if (test__aeabi_idivmod(-2, 1, -2, 0))
return 1;
if (test__aeabi_idivmod(-2, -1, 2, 0))
return 1;
if (test__aeabi_idivmod(7, 5, 1, 2))
return 1;
if (test__aeabi_idivmod(-7, 5, -1, -2))
return 1;
if (test__aeabi_idivmod(19, 5, 3, 4))
return 1;
if (test__aeabi_idivmod(19, -5, -3, 4))
return 1;
if (test__aeabi_idivmod(0x80000000, 8, 0xf0000000, 0))
return 1;
if (test__aeabi_idivmod(0x80000007, 8, 0xf0000001, -1))
return 1;
#else
printf("skipped\n");
#endif
return 0;
}
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