3026 	tree old_decl = b->decl;  in warn_if_shadowing()  local
3028 	if (old_decl == error_mark_node)  in warn_if_shadowing()
3037 	if (TREE_CODE (old_decl) == PARM_DECL)  in warn_if_shadowing()
3047 	    else if (comptypes (TREE_TYPE (old_decl), TREE_TYPE (new_decl)))  in warn_if_shadowing()
3055 	else if (DECL_FILE_SCOPE_P (old_decl))  in warn_if_shadowing()
3059 	    if (TREE_CODE (old_decl) == FUNCTION_DECL  in warn_if_shadowing()
3069 	else if (TREE_CODE (old_decl) == FUNCTION_DECL  in warn_if_shadowing()
3070 		 && fndecl_built_in_p (old_decl))  in warn_if_shadowing()
3086 	    else if (comptypes (TREE_TYPE (old_decl), TREE_TYPE (new_decl)))  in warn_if_shadowing()
3096 	  inform (DECL_SOURCE_LOCATION (old_decl),  in warn_if_shadowing()
9505   tree decl1, old_decl;  in start_function()  local
9577   old_decl = lookup_name_in_scope (DECL_NAME (decl1), current_scope);  in start_function()
9578   if (old_decl && TREE_CODE (old_decl) != FUNCTION_DECL)  in start_function()
9579     old_decl = NULL_TREE;  in start_function()
9585   tree oldtype = old_decl ? TREE_TYPE (old_decl) : newtype;  in start_function()
9590       if (old_decl != NULL_TREE  in start_function()
9599 	      locate_old_decl (old_decl);  in start_function()
9602 	  current_function_prototype_locus = DECL_SOURCE_LOCATION (old_decl);  in start_function()
9604 	    = C_DECL_BUILTIN_PROTOTYPE (old_decl);  in start_function()
9642       && old_decl != error_mark_node  in start_function()
9644       && C_DECL_ISNT_PROTOTYPE (old_decl))  in start_function()
9649 	   && old_decl != error_mark_node  in start_function()
9652 	   && C_DECL_ISNT_PROTOTYPE (old_decl)  in start_function()
9659 	   && old_decl != NULL_TREE  in start_function()
9660 	   && old_decl != error_mark_node  in start_function()
9661 	   && TREE_USED (old_decl)  in start_function()
9662 	   && !prototype_p (TREE_TYPE (old_decl)))  in start_function()
9668 	   && old_decl == NULL_TREE  in start_function()
9677 	   && old_decl != NULL_TREE  in start_function()
9678 	   && old_decl != error_mark_node  in start_function()
9679 	   && TREE_USED (old_decl)  in start_function()
9680 	   && C_DECL_IMPLICIT (old_decl))  in start_function()
9714   if (old_decl)  in start_function()
9716       location_t origloc = DECL_SOURCE_LOCATION (old_decl);  in start_function()
9717       warn_parm_array_mismatch (origloc, old_decl, parms);  in start_function()
9728 		     old_decl);  in start_function()