int co_solve_heuristic(copy_opt_t *co) {
unit_t *curr;
- dbg = firm_dbg_register("ir.be.copyoptheur");
+ FIRM_DBG_REGISTER(dbg, "ir.be.copyoptheur");
+
+ ASSERT_OU_AVAIL(co);
pinned_global = pset_new_ptr(SLOTS_PINNED_GLOBAL);
list_for_each_entry(unit_t, curr, &co->units, units)