Determination JIT version in runtime

JitVersionInfo.cs

public enum JitVersion
{
    Mono, MsX86, MsX64, RyuJit
}

public class JitVersionInfo
{
    public JitVersion GetJitVersion()
    {
        if (IsMono())
            return JitVersion.Mono;
        if (IsMsX86())
            return JitVersion.MsX86;
        if (IsMsX64())
            return JitVersion.MsX64;
        return JitVersion.RyuJit;
    }

    private int bar;

    private bool IsMsX64(int step = 1)
    {
        var value = 0;
        for (int i = 0; i < step; i++)
        {
            bar = i + 10;
            for (int j = 0; j < 2 * step; j += step)
                value = j + 10;
        }
        return value == 20 + step;
    }

    public static bool IsMono()
    {
        return Type.GetType("Mono.Runtime") != null;
    }

    public static bool IsMsX86()
    {
        return !IsMono() && IntPtr.Size == 4;
    }
}

Program.cs

using System;

class Program
{
    static void Main()
    {
        Console.WriteLine("Current JIT version: " + new JitVersionInfo().GetJitVersion());
    }
}