for (i = 0, max = get_irn_arity(phi); i < max; ++i) {
ir_node *arg = get_irn_n(phi, i);
const arch_register_req_t *req = arch_get_irn_register_req(arg);
for (i = 0, max = get_irn_arity(phi); i < max; ++i) {
ir_node *arg = get_irn_n(phi, i);
const arch_register_req_t *req = arch_get_irn_register_req(arg);