I'm working on a plugin to report dependencies of a .c file to its headers, i.e. what information from the headers is referenced from the .c file.
This works pretty well for most stuff, but I really have a hard time for anything that gets folded to a constant. The AST does no longer have the original types/functions/constants but transforms them to const ints in an early stage already. I am looking at the AST from a plugin and a tree walking function called from PLUGIN_PRE_GENERICIZE. Is there an earlier phase that I could hook into? If not, would it be acceptable to add the original tree to a folded tree for analyzing tools like mine? If so, any hint about how this can be implemented? From looking at it, it seems that everything (?) is passed through fold_convert_loc. Thanks
