+ir_node *be_new_SubSP(const arch_register_t *sp, ir_graph *irg, ir_node *bl, ir_node *old_sp, ir_node *sz)
+{
+ be_node_attr_t *a;
+ ir_node *irn;
+ ir_node *in[be_pos_SubSP_last];
+
+ in[be_pos_SubSP_old_sp] = old_sp;
+ in[be_pos_SubSP_size] = sz;
+
+ irn = new_ir_node(NULL, irg, bl, op_be_SubSP, mode_T, be_pos_SubSP_last, in);
+ a = init_node_attr(irn, be_pos_SubSP_last);
+
+ be_node_set_flags(irn, OUT_POS(pn_be_SubSP_res), arch_irn_flags_ignore | arch_irn_flags_modify_sp);
+
+ /* Set output constraint to stack register. */
+ be_set_constr_single_reg(irn, be_pos_SubSP_old_sp, sp);
+ be_node_set_reg_class(irn, be_pos_SubSP_size, arch_register_get_class(sp));
+ be_set_constr_single_reg(irn, OUT_POS(pn_be_SubSP_res), sp);
+ a->reg_data[pn_be_SubSP_res].reg = sp;
+
+ return irn;
+}
+