#define set_irn_col(co, irn, col) arch_set_irn_register(irn, arch_register_for_index((co)->cls, col))
#define list_entry_units(lh) list_entry(lh, unit_t, units)
#define set_irn_col(co, irn, col) arch_set_irn_register(irn, arch_register_for_index((co)->cls, col))
#define list_entry_units(lh) list_entry(lh, unit_t, units)