+
+#ifdef WITH_MEMOPERANDS
+ n_memoperands = 0;
+ for(n = get_irn_arity(irn)-1; n>=0; --n) {
+ if(get_irn_n(irn, n) == arg) {
+ n_memoperands++;
+ }
+ }
+ for(n = get_irn_arity(irn)-1; n>=0; --n) {
+ if(get_irn_n(irn, n) == arg && arch_possible_memory_operand(arch_env, irn, n)) {
+ memoperand_t *memoperand;
+ memoperand = set_find_memoperand(si->memoperands, irn, n);
+
+ /* memoperand <= mem_out */
+ ir_snprintf(buf, sizeof(buf), "req_memoperand_%N_%d", irn, n);
+ cst = lpp_add_cst_uniq(si->lpp, buf, lpp_less, 0.0);
+ lpp_set_factor_fast(si->lpp, cst, memoperand->ilp, 1.0);
+ lpp_set_factor_fast(si->lpp, cst, spill->mem_out, -1.0);
+
+ /* the memoperand is only sufficient if it is used once by the op */
+ if(n_memoperands == 1)
+ lpp_set_factor_fast(si->lpp, requirements, memoperand->ilp, 1.0);
+
+ lpp_set_factor_fast(si->lpp, one_memoperand, memoperand->ilp, 1.0);
+
+ /* we have one more free register if we use a memory operand */
+ lpp_set_factor_fast(si->lpp, check_pre, memoperand->ilp, -1.0);
+ }
+ }
+#endif