Hello, I'm doing some testing with a gcc plugin (also helped me understand a lot of how GCC works) but I've hit a roadblock.
I want to find all of a function body's CALL_EXPR nodes (i.e. what calls it has) early during GENERIC, so I assume the PLUGIN_PRE_GENERICIZE hook is what I should use right? Anyway, my problem is I don't know how to find all the CALL_EXPR nodes from the DECL_SAVED_TREE of the function's decl. So what's the simplest way to do that? The routines in tree-iterator.h don't help much, they only iterate through a statement list. Do I have to go through every expr manually? Is there no API available? (walk_tree doesn't seem to handle it, or maybe I don't know how to use it) This is obviously trivial to do in GIMPLE form (iterating through all statements and finding GIMPLE_CALL) but I need it as early as possible, so that would be in the tree representation (GENERIC?). I hope I'm just missing something obvious. Thanks.
