int co_get_costs_loop_depth(ir_node *root, ir_node* arg, int pos);
/**
- * All costs equal 1. Using this will reduce the number of copies.
+ * All costs equal 1. Using this will reduce the _number_ of copies.
* @return Must be >= 0 in all cases.
*/
int co_get_costs_all_one(ir_node *root, ir_node* arg, int pos);