Enum type inference could use improvement

[bprg]

C#
var value = 0xfffffe0b;

IL
IL_0000: ldc.i4 -501

[siegfriedpammer]

Why is this invalid? What would you expect? -501 and 0xfffffe0b have the same value, when encoded in binary and ilasm accepts both ldc.i4 -501 and ldc.i4 0xfffffe0b. It seems ildasm always uses hexadecimal notation for values < 0, but that is just a question of formatting the output value.

ldc.i4 -504 is not invalid.

[bprg]

You're right, But if added hexadecimal value in comment like dotPeek decompiler is great.

IL_0000: ldc.i4 -501 //0xfffffe0b

[bprg]

Another issue with enum.

Code

MyEnum value = MyEnum.Val2;
if (value - MyEnum.Val1 <= 4)
{
   Console.WriteLine(value - MyEnum.Val1);
}

enum MyEnum : uint
{
   Val1 = 0xfffffe0b,
   Val2 = 0xfffffe0f
}

Decompile result

MyEnum myEnum = MyEnum.Val2;
if ((uint)((int)myEnum - -501) <= 4u)
{
   Console.WriteLine((uint)((int)myEnum - -501));
}