*/
int co_is_optimizable_root(const copy_opt_t *co, ir_node *irn);
-/**
- * Checks if the irn is a non-interfering argument of a node which 'is_optimizable'
- */
-int co_is_optimizable_arg(const copy_opt_t *co, ir_node *irn);
-
/**
* Computes the costs of a copy according to loop depth
* @param co The copy opt object.