JIT: (bug) range analysis treats int<->float casts as value-preserving #134452

using System;
using System.Runtime.CompilerServices;

public class Program
{
    public static void Main()
    {
        Console.WriteLine(Test(16777219));
        Console.WriteLine(Test2(-5));
        try { Console.WriteLine(Test3(new byte[16777220], 16777219)); }
        catch (IndexOutOfRangeException) { Console.WriteLine("IOORE"); }
    }

    [MethodImpl(MethodImplOptions.NoInlining | MethodImplOptions.AggressiveOptimization)]
    static int Test(int x)
    {
        if (x >= 0 && x <= 16777219)
        {
            int y = (int)(float)x; // 16777220
            if (y > 16777219) return 1;
        }
        return 0;
    }

    [MethodImpl(MethodImplOptions.NoInlining | MethodImplOptions.AggressiveOptimization)]
    static int Test2(int x)
    {
        if (x < 0)
        {
            uint u = (uint)(double)x; // saturates to 0
            if (u == 0) return 1;
        }
        return 0;
    }

    [MethodImpl(MethodImplOptions.NoInlining | MethodImplOptions.AggressiveOptimization)]
    static int Test3(byte[] arr, int x)
    {
        if (arr.Length == 16777220 && x >= 0 && x <= 16777219)
            return arr[(int)(float)x]; // index 16777220 -> must throw
        return -1;
    }
}