int get_Filter_n_cg_preds(ir_node *node);
ir_node *get_Filter_cg_pred(ir_node *node, int pos);
+/** Return true if parameter is a memory operation.
+ *
+ * A memory operation is an operation that directly changes the
+ * memory. I.e., a Load or a Store operation.
+ */
+int is_memop(ir_node *node);
+ir_node *get_memop_mem (ir_node *node);
+void set_memop_mem (ir_node *node, ir_node *mem);
+ir_node *get_memop_ptr (ir_node *node);
+void set_memop_ptr (ir_node *node, ir_node *ptr);
+
/**
* Projection numbers for Load: use for Proj nodes!
*/