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using System;
using System.Runtime.Intrinsics.X86;
using System.Runtime.Intrinsics;
namespace GitHub_21666
{
// CRC32 is a special instruction that has 4-byte opcode but does not use SSE38 or SSE3A encoding,
// so the compiler backend needs to specially check its code size.
// Test LZCNT as well to ensure that future changes do not impact 3-byte opcode instructions.
class GitHub_21666
{
const int Pass = 100;
const int Fail = 0;
static byte byteSF = 1;
static ushort ushortSF = 1;
static uint uintSF = 1;
static ulong ulongSF = 1;
readonly static byte[] byteArray = new byte[10];
readonly static ushort[] ushortArray = new ushort[10];
readonly static uint[] uintArray = new uint[10];
readonly static ulong[] ulongArray = new ulong[10];
static int Main(string[] args)
{
bool sucess = true;
byteSF = 0;
ushortSF = 0;
uintSF = 0;
ulongSF = 0;
sucess = sucess && TestByteContainment();
sucess = sucess && TestUInt16Containment();
sucess = sucess && TestUInt32Containment();
sucess = sucess && TestUInt64Containment();
return sucess ? Pass : Fail;
}
static unsafe bool TestByteContainment()
{
byte value = (byte)0;
byte* ptr = &value;
if (Sse42.IsSupported)
{
if (Sse42.Crc32(0xffffffffU, (byte)0) != 0xad82acaeU)
{
Console.WriteLine("TestByteContainment failed on Crc32");
return false;
}
if (Sse42.Crc32(0xffffffffU, value) != 0xad82acaeU)
{
Console.WriteLine("TestByteContainment failed on Crc32");
return false;
}
if (Sse42.Crc32(0xffffffffU, *ptr) != 0xad82acaeU)
{
Console.WriteLine("TestByteContainment failed on Crc32");
return false;
}
if (Sse42.Crc32(0xffffffffU, byteArray[1]) != 0xad82acaeU)
{
Console.WriteLine("TestByteContainment failed on Crc32");
return false;
}
if (Sse42.Crc32(0xffffffffU, byteArray[*ptr + 1]) != 0xad82acaeU)
{
Console.WriteLine("TestByteContainment failed on Crc32");
return false;
}
if (Sse42.Crc32(0xffffffffU, byteSF) != 0xad82acaeU)
{
Console.WriteLine("TestByteContainment failed on Crc32");
return false;
}
}
return true;
}
static unsafe bool TestUInt16Containment()
{
ushort value = (ushort)0;
ushort* ptr = &value;
if (Sse42.IsSupported)
{
if (Sse42.Crc32(0xffffffffU, (ushort)0) != 0xe9e882dU)
{
Console.WriteLine("TestUInt16Containment failed on Crc32");
return false;
}
if (Sse42.Crc32(0xffffffffU, value) != 0xe9e882dU)
{
Console.WriteLine("TestUInt16Containment failed on Crc32");
return false;
}
if (Sse42.Crc32(0xffffffffU, *ptr) != 0xe9e882dU)
{
Console.WriteLine("TestUInt16Containment failed on Crc32");
return false;
}
if (Sse42.Crc32(0xffffffffU, ushortArray[1]) != 0xe9e882dU)
{
Console.WriteLine("TestUInt16Containment failed on Crc32");
return false;
}
if (Sse42.Crc32(0xffffffffU, ushortArray[*ptr + 1]) != 0xe9e882dU)
{
Console.WriteLine("TestUInt16Containment failed on Crc32");
return false;
}
if (Sse42.Crc32(0xffffffffU, ushortSF) != 0xe9e882dU)
{
Console.WriteLine("TestUInt16Containment failed on Crc32");
return false;
}
}
return true;
}
static unsafe bool TestUInt32Containment()
{
uint value = (uint)0;
uint* ptr = &value;
if (Lzcnt.IsSupported)
{
if (Lzcnt.LeadingZeroCount(*ptr) != 32)
{
Console.WriteLine("TestUInt32Containment failed on LeadingZeroCount");
return false;
}
if (Lzcnt.LeadingZeroCount(uintArray[2]) != 32)
{
Console.WriteLine("TestUInt32Containment failed on LeadingZeroCount");
return false;
}
if (Lzcnt.LeadingZeroCount(uintArray[*ptr + 2]) != 32)
{
Console.WriteLine("TestUInt32Containment failed on LeadingZeroCount");
return false;
}
}
uint* ptr1 = &value;
if (Sse42.IsSupported)
{
if (Sse42.Crc32(0xffffffffU, (uint)0) != 0xb798b438U)
{
Console.WriteLine("TestUInt32Containment failed on Crc32");
return false;
}
if (Sse42.Crc32(0xffffffffU, value) != 0xb798b438U)
{
Console.WriteLine("TestUInt32Containment failed on Crc32");
return false;
}
if (Sse42.Crc32(0xffffffffU, *ptr1) != 0xb798b438U)
{
Console.WriteLine("TestUInt32Containment failed on Crc32");
return false;
}
if (Sse42.Crc32(0xffffffffU, uintArray[1]) != 0xb798b438U)
{
Console.WriteLine("TestUInt32Containment failed on Crc32");
return false;
}
if (Sse42.Crc32(0xffffffffU, uintArray[*ptr + 1]) != 0xb798b438U)
{
Console.WriteLine("TestUInt32Containment failed on Crc32");
return false;
}
if (Sse42.Crc32(0xffffffffU, uintSF) != 0xb798b438U)
{
Console.WriteLine("TestUInt32Containment failed on Crc32");
return false;
}
}
return true;
}
static unsafe bool TestUInt64Containment()
{
ulong value = (ulong)0;
ulong* ptr = &value;
if (Lzcnt.X64.IsSupported)
{
if (Lzcnt.X64.LeadingZeroCount(*ptr) != 64)
{
Console.WriteLine("TestUInt64Containment failed on LeadingZeroCount");
return false;
}
if (Lzcnt.X64.LeadingZeroCount(ulongArray[2]) != 64)
{
Console.WriteLine("TestUInt64Containment failed on LeadingZeroCount");
return false;
}
if (Lzcnt.X64.LeadingZeroCount(ulongArray[*ptr + 2]) != 64)
{
Console.WriteLine("TestUInt64Containment failed on LeadingZeroCount");
return false;
}
}
ulong* ptr1 = &value;
if (Sse42.X64.IsSupported)
{
if (Sse42.X64.Crc32(0xffffffffffffffffUL, 0) != 0x0000000073d74d75UL)
{
Console.WriteLine("TestUInt64Containment failed on Crc32");
return false;
}
if (Sse42.X64.Crc32(0xffffffffffffffffUL, value) != 0x0000000073d74d75UL)
{
Console.WriteLine("TestUInt64Containment failed on Crc32");
return false;
}
if (Sse42.X64.Crc32(0xffffffffffffffffUL, *ptr1) != 0x0000000073d74d75UL)
{
Console.WriteLine("TestUInt64Containment failed on Crc32");
return false;
}
if (Sse42.X64.Crc32(0xffffffffffffffffUL, ulongArray[1]) != 0x0000000073d74d75UL)
{
Console.WriteLine("TestUInt64Containment failed on Crc32");
return false;
}
if (Sse42.X64.Crc32(0xffffffffffffffffUL, ulongArray[*ptr + 1]) != 0x0000000073d74d75UL)
{
Console.WriteLine("TestUInt64Containment failed on Crc32");
return false;
}
if (Sse42.X64.Crc32(0xffffffffffffffffUL, ulongSF) != 0x0000000073d74d75UL)
{
Console.WriteLine("TestUInt64Containment failed on Crc32");
return false;
}
}
return true;
}
}
}
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