> > + /* No need for canonical types of functions and methods; those are never > > + accessed as memory locations. */ > > + if (TREE_CODE (t) == FUNCTION_TYPE || TREE_CODE (t) == METHOD_TYPE) > > + return; > > Just occured to me that it might make sense to remove the > FUNCTION/METHOD_TYPE case in useless_type_conversion_p (I wonder > in which cases we enter up in that path...).
Yes, I think that is unreachable (it was used only by that ignored code path in ipa-symtab.c) and I also had patch for it somewhere. Will look it up at afternoon (I am teaching at morning). I think useless_type_conversion_p should also just work on types that do have memory representation. Honza
