Hi, all. I have a basic question about GENERIC trees. I'm playing with writing a front end, and find the distinction between BLOCK and BIND_EXPR to be somewhat confusing. In particular, I'm trying to get a handle on how to represent a function in GENERIC form.
On the surface the texi docs and code comments don't seem to agree: Section on function trees say FUNCTION_DECL represents a function, and that DECL_INITIAL is not empty. But it doesn't say what should be contained there. It says DECL_SAVED_TREE should contain the body of the function. The comments in tree.h say that DECL_INITIAL holds the body of a function, with a BLOCK tree at the root. BLOCK nodes are described under TREE_SSA->GIMPLE, though these nodes are part of GENERIC if I understand correctly. In this section, it says that block scopes and variables are declared in BIND_EXPR nodes. Can someone please clarify how these things are supposed to relate in GENERIC form, assuming the default conversion to GIMPLE will be used? Thanks, Jerry Quinn
