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| // RUN: %clang_builtins %s %librt -o %t && %run %t
// REQUIRES: librt_has_divti3
// REQUIRES: int128
//===-- divti3_test.c - Test __divti3 -------------------------------------===//
//
// 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 __divti3 for the compiler_rt library.
//
//===----------------------------------------------------------------------===//
#include "int_lib.h"
#include <stdio.h>
#ifdef CRT_HAS_128BIT
// Returns: a / b
COMPILER_RT_ABI ti_int __divti3(ti_int a, ti_int b);
int test__divti3(ti_int a, ti_int b, ti_int expected)
{
ti_int x = __divti3(a, b);
if (x != expected)
{
twords at;
at.all = a;
twords bt;
bt.all = b;
twords xt;
xt.all = x;
twords expectedt;
expectedt.all = expected;
printf("error in __divti3: 0x%llX%.16llX / 0x%llX%.16llX = "
"0x%llX%.16llX, expected 0x%llX%.16llX\n",
at.s.high, at.s.low, bt.s.high, bt.s.low, xt.s.high, xt.s.low,
expectedt.s.high, expectedt.s.low);
}
return x != expected;
}
char assumption_1[sizeof(ti_int) == 2*sizeof(di_int)] = {0};
#endif
int main()
{
#ifdef CRT_HAS_128BIT
if (test__divti3(0, 1, 0))
return 1;
if (test__divti3(0, -1, 0))
return 1;
if (test__divti3(2, 1, 2))
return 1;
if (test__divti3(2, -1, -2))
return 1;
if (test__divti3(-2, 1, -2))
return 1;
if (test__divti3(-2, -1, 2))
return 1;
if (test__divti3(make_ti(0x8000000000000000LL, 0), 1, make_ti(0x8000000000000000LL, 0)))
return 1;
if (test__divti3(make_ti(0x8000000000000000LL, 0), -1, make_ti(0x8000000000000000LL, 0)))
return 1;
if (test__divti3(make_ti(0x8000000000000000LL, 0), -2, make_ti(0x4000000000000000LL, 0)))
return 1;
if (test__divti3(make_ti(0x8000000000000000LL, 0), 2, make_ti(0xC000000000000000LL, 0)))
return 1;
#else
printf("skipped\n");
#endif
return 0;
}
|