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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
//
using System;
// Test long and ulong shifts by 0, 32 and 64 constants that can be optimized.
namespace ShiftTest
{
public class ulong64Test
{
static int shiftByZero(ulong arg)
{
if (arg != arg << 0)
{
return -1;
}
if (arg != arg >> 0)
{
return -1;
}
return 100;
}
static int shiftBy32(ulong arg)
{
ulong powerOfTwo = 0x100000000UL;
if (arg * powerOfTwo != arg << 32)
{
return -1;
}
if (arg / powerOfTwo != arg >> 32)
{
return -1;
}
return 100;
}
static int shiftBy64(ulong arg)
{
// The shift count is computed from count & 0x3F.
if (arg != arg << 64)
{
return -1;
}
if (arg != arg >> 64)
{
return -1;
}
return 100;
}
public static int run(ulong arg)
{
bool passed = true;
if (shiftByZero(arg) != 100)
{
passed = false;
Console.WriteLine("FAILED for uLong shiftByZero");
}
if (shiftBy32(arg) != 100)
{
passed = false;
Console.WriteLine("FAILED for uLong shiftBy32");
}
if (shiftBy64(arg) != 100)
{
passed = false;
Console.WriteLine("FAILED for uLong shiftBy64");
}
if (passed)
{
return 100;
}
return -1;
}
}
public class long64Test
{
static int shiftByZero(long arg)
{
if (arg != arg << 0)
{
return -1;
}
if (arg != arg >> 0)
{
return -1;
}
return 100;
}
static int shiftBy32(long arg)
{
long powerOfTwo = 0x100000000L;
if (arg * powerOfTwo != arg << 32)
{
return -1;
}
if (arg / powerOfTwo != arg >> 32)
{
return -1;
}
return 100;
}
static int shiftBy64(long arg)
{
// The shift count is computed from count & 0x3F.
if (arg != arg << 64)
{
return -1;
}
if (arg != arg >> 64)
{
return -1;
}
if (-arg != -arg >> 64)
{
return -1;
}
return 100;
}
public static int run(long arg)
{
bool passed = true;
if (shiftByZero(arg) != 100)
{
passed = false;
Console.WriteLine("FAILED for Long shiftByZero");
}
if (shiftBy32(arg) != 100)
{
passed = false;
Console.WriteLine("FAILED for Long shiftBy32");
}
if (shiftBy64(arg) != 100)
{
passed = false;
Console.WriteLine("FAILED for Long shiftBy64");
}
if (passed)
{
return 100;
}
return -1;
}
}
class Test
{
public static int Main()
{
bool passed = true;
ulong ulongArg = 0x3F134;
if (ulong64Test.run(ulongArg) != 100)
{
passed = false;
}
long longArg = 0x3F134;
if (long64Test.run(longArg) != 100)
{
passed = false;
}
if (passed)
{
Console.WriteLine("PASSED");
return 100;
}
Console.WriteLine("FAILED");
return -1;
}
}
}
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