Actual Performance of Fields vs. Properties

Question

I\'m doing some post-build CIL weaving that adds CIL to all methods in an assembly (in other words tons of methods). Each method checks if a specific value is null. Example

Answer 1

The C# compiler won't optimize this, no - but the JIT compiler can usually inline trivial (and non-virtual) properties as far as I'm aware.

As with all performance questions though: when in doubt, test!