- * IMPORTANT: Available only iff heuristic has run!
- * Returns a lower bound for the number of copies needed based on interfering
- * arguments and the size of a max indep. set (only ifg-edges) of the other args.
+ * Returns the current costs the copies are causing.
+ * The result includes inevitable costs and the costs
+ * of the copies regarding the current register allocation
+ * Uses the OU data structure
+ */
+int co_get_copy_costs(const copy_opt_t *co);
+
+/**
+ * Returns a lower bound for the costs of copies in this ou.
+ * The result includes inevitable costs and the costs of a
+ * minimal costs caused by the nodes of the ou.
+ * Uses the OU data structure