ucmpdi2_test.c
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// RUN: %clang_builtins %s %librt -o %t && %run %t
// REQUIRES: librt_has_ucmpdi2
//===-- ucmpdi2_test.c - Test __ucmpdi2 -----------------------------------===//
//
// 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 __ucmpdi2 for the compiler_rt library.
//
//===----------------------------------------------------------------------===//
#include "int_lib.h"
#include <stdio.h>
// Returns: if (a < b) returns 0
// if (a == b) returns 1
// if (a > b) returns 2
COMPILER_RT_ABI si_int __ucmpdi2(du_int a, du_int b);
int test__ucmpdi2(du_int a, du_int b, si_int expected)
{
si_int x = __ucmpdi2(a, b);
if (x != expected)
printf("error in __ucmpdi2(0x%llX, 0x%llX) = %d, expected %d\n",
a, b, x, expected);
return x != expected;
}
int main()
{
if (test__ucmpdi2(0, 0, 1))
return 1;
if (test__ucmpdi2(1, 1, 1))
return 1;
if (test__ucmpdi2(2, 2, 1))
return 1;
if (test__ucmpdi2(0x7FFFFFFF, 0x7FFFFFFF, 1))
return 1;
if (test__ucmpdi2(0x80000000, 0x80000000, 1))
return 1;
if (test__ucmpdi2(0x80000001, 0x80000001, 1))
return 1;
if (test__ucmpdi2(0xFFFFFFFF, 0xFFFFFFFF, 1))
return 1;
if (test__ucmpdi2(0x000000010000000LL, 0x000000010000000LL, 1))
return 1;
if (test__ucmpdi2(0xFFFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL, 1))
return 1;
if (test__ucmpdi2(0x0000000200000002LL, 0x0000000300000001LL, 0))
return 1;
if (test__ucmpdi2(0x0000000200000002LL, 0x0000000300000002LL, 0))
return 1;
if (test__ucmpdi2(0x0000000200000002LL, 0x0000000300000003LL, 0))
return 1;
if (test__ucmpdi2(0x0000000200000002LL, 0x0000000100000001LL, 2))
return 1;
if (test__ucmpdi2(0x0000000200000002LL, 0x0000000100000002LL, 2))
return 1;
if (test__ucmpdi2(0x0000000200000002LL, 0x0000000100000003LL, 2))
return 1;
if (test__ucmpdi2(0x0000000200000002LL, 0x0000000200000001LL, 2))
return 1;
if (test__ucmpdi2(0x0000000200000002LL, 0x0000000200000002LL, 1))
return 1;
if (test__ucmpdi2(0x0000000200000002LL, 0x0000000200000003LL, 0))
return 1;
return 0;
}