-/**
- * Returns an irgraph that only contains constant
- * expressions for constant entities.
- * Do not use any access function for this graph, do not generate code
- * for this graph. This graph contains only one block. The constant
- * expressions may not contain control flow. See also copy_const_code()
- * in entity.h.
+/** Adds opcode to the list of opcodes in irp. */
+void add_irp_opcode(ir_op *opcode);
+
+/** Removes opcode from the list of opcodes, deallocates it and
+ shrinks the list by one. */
+void remove_irp_opcode(ir_op *opcode);
+
+/** Returns the number of all opcodes in the irp. */
+int get_irp_n_opcodes(void);
+
+/** Returns the opcode at position pos in the irp. */
+ir_op *get_irp_opcode(int pos);
+
+/** Sets the generic function pointer of all opcodes to NULL */
+void clear_irp_opcodes_generic_func(void);
+
+
+/** Return the graph for global constants.
+ *
+ * Returns an irgraph that only contains constant expressions for
+ * constant entities. Do not use any access function for this
+ * graph, do not generate code for this graph. This graph contains
+ * only one block. The constant expressions may not contain control
+ * flow.
+ * Walking the graph starting from any node will not reach the block
+ * or any controlflow.
+ * See also copy_const_code() in entity.h.