Hi, I'm implementing some OpenACC directives but since I'm a new contributor with a very simple but conceptual question that I prefer asking in the mailing list rather than believing some unclear explanation from AI.
I know that some directives (Talking about OpenMP / OpenACC) imply futher optimizations or variables treatment and that case is defined as a tree node (TREEDEF). In the other side, built-in is required when it's a runtime call that can be resolved in the front-end (?). I'm not sure about that and I would appreciate some examples. Not necessarily in the case of OpenACC / OpenMP, but some useful examples to judge if some statement requires built-in or define a tree node for that (if requires special treatment). Thanks! Best Regards, Sebastian Galindo
