2985 	tree old_decl = b->decl;  in warn_if_shadowing()  local
2987 	if (old_decl == error_mark_node)  in warn_if_shadowing()
2996 	if (TREE_CODE (old_decl) == PARM_DECL)  in warn_if_shadowing()
3006 	    else if (comptypes (TREE_TYPE (old_decl), TREE_TYPE (new_decl)))  in warn_if_shadowing()
3014 	else if (DECL_FILE_SCOPE_P (old_decl))  in warn_if_shadowing()
3018 	    if (TREE_CODE (old_decl) == FUNCTION_DECL  in warn_if_shadowing()
3028 	else if (TREE_CODE (old_decl) == FUNCTION_DECL  in warn_if_shadowing()
3029 		 && fndecl_built_in_p (old_decl))  in warn_if_shadowing()
3045 	    else if (comptypes (TREE_TYPE (old_decl), TREE_TYPE (new_decl)))  in warn_if_shadowing()
3055 	  inform (DECL_SOURCE_LOCATION (old_decl),  in warn_if_shadowing()
9122   tree decl1, old_decl;  in start_function()  local
9196   old_decl = lookup_name_in_scope (DECL_NAME (decl1), current_scope);  in start_function()
9197   if (old_decl && TREE_CODE (old_decl) != FUNCTION_DECL)  in start_function()
9198     old_decl = NULL_TREE;  in start_function()
9204       if (old_decl != NULL_TREE  in start_function()
9205 	  && TREE_CODE (TREE_TYPE (old_decl)) == FUNCTION_TYPE  in start_function()
9207 			TREE_TYPE (TREE_TYPE (old_decl))))  in start_function()
9209 	  if (stdarg_p (TREE_TYPE (old_decl)))  in start_function()
9214 	      locate_old_decl (old_decl);  in start_function()
9216 	  TREE_TYPE (decl1) = composite_type (TREE_TYPE (old_decl),  in start_function()
9218 	  current_function_prototype_locus = DECL_SOURCE_LOCATION (old_decl);  in start_function()
9220 	    = C_DECL_BUILTIN_PROTOTYPE (old_decl);  in start_function()
9258       && old_decl != error_mark_node  in start_function()
9260       && C_DECL_ISNT_PROTOTYPE (old_decl))  in start_function()
9265 	   && old_decl != error_mark_node  in start_function()
9268 	   && C_DECL_ISNT_PROTOTYPE (old_decl)  in start_function()
9275 	   && old_decl != NULL_TREE  in start_function()
9276 	   && old_decl != error_mark_node  in start_function()
9277 	   && TREE_USED (old_decl)  in start_function()
9278 	   && !prototype_p (TREE_TYPE (old_decl)))  in start_function()
9284 	   && old_decl == NULL_TREE  in start_function()
9293 	   && old_decl != NULL_TREE  in start_function()
9294 	   && old_decl != error_mark_node  in start_function()
9295 	   && TREE_USED (old_decl)  in start_function()
9296 	   && C_DECL_IMPLICIT (old_decl))  in start_function()