[kreetx]

I guess we can just agree to disagree here.

Regarding compiler vs IDE, I'd say that since it doesn't change the meaning of the code, just the depth of recursion, then IDE would fit better. Perhaps you could also ask for info on tail-call optimized functions from the compiler giving it a flag, but otherwise I don't think whether something was optimized or not doesn't matter much (depending on what you work on, of course).