- arch_irn_flags_t flags; /**< indicating if spillable, rematerializeable ... etc. */
- int n_res; /**< number of results for this node */
-
- const arch_register_req_t **in_req; /**< register requirements for arguments */
- const arch_register_req_t **out_req; /**< register requirements for results */
-
- /* must be last, dynamically allocated */
- const arch_register_t *slots[1]; /**< register slots for assigned registers */