+irg_outs_state get_irg_outs_state(const ir_graph *irg);
+void set_irg_outs_inconsistent(ir_graph *irg);
+
+/** state: extended basic block state. */
+typedef enum {
+ extblk_none = 0, /**< No extended basic block information is constructed. Default. */
+ extblk_valid = 1, /**< Extended basic block information is valid. */
+ extblk_invalid = 2 /**< Extended basic block information is constructed but invalid. */
+} irg_extblk_state;
+irg_extblk_state get_irg_extblk_state(const ir_graph *irg);
+void set_irg_extblk_inconsistent(ir_graph *irg);
+
+/** state: dom_state
+ * Signals the state of the dominator / post dominator information.
+ */
+typedef enum {
+ dom_none, /**< dominator are not computed, no memory is allocated */
+ dom_consistent, /**< dominator information is computed and correct */
+ dom_inconsistent /**< dominator information is computed but the graph has been changed since */
+} irg_dom_state;
+
+/** returns the dominator state of an IR graph. */
+irg_dom_state get_irg_dom_state(const ir_graph *irg);
+
+/** returns the post dominator state of an IR graph. */
+irg_dom_state get_irg_postdom_state(const ir_graph *irg);
+
+/** sets the dominator and post dominator state of an IR graph to inconsistent. */
+void set_irg_doms_inconsistent(ir_graph *irg);
+
+/** state: loopinfo_state
+ * Loop information describes the loops within the control and
+ * data flow of the procedure.
+ */
+typedef enum {
+ loopinfo_none = 0, /**< No loop information is constructed. Default. */
+ loopinfo_constructed = 1, /**< Some kind of loop information is constructed. */
+ loopinfo_valid = 2, /**< Loop information is valid. */
+ loopinfo_cf = 4, /**< Loop information constructed for control flow only. */
+ loopinfo_inter = 8, /**< Loop information for interprocedural view. */
+
+ loopinfo_for_firmjni = 16, /**< A hack for firmjni: all enums must differ as they
+ are used in a switch. */
+
+ /** IntRAprocedural loop information constructed and valid. */
+ loopinfo_consistent = loopinfo_constructed | loopinfo_for_firmjni | loopinfo_valid,
+ /** IntRAprocedural loop information constructed and invalid. */
+ loopinfo_inconsistent = loopinfo_constructed | loopinfo_for_firmjni,
+
+ /** IntERprocedural loop information constructed and valid. */
+ loopinfo_ip_consistent = loopinfo_constructed | loopinfo_inter | loopinfo_valid,
+ /** IntERprocedural loop information constructed and invalid. */
+ loopinfo_ip_inconsistent = loopinfo_constructed | loopinfo_inter,
+
+ /** IntRAprocedural control loop information constructed and valid. */
+ loopinfo_cf_consistent = loopinfo_constructed | loopinfo_cf | loopinfo_valid,
+ /** IntRAprocedural control loop information constructed and invalid. */
+ loopinfo_cf_inconsistent = loopinfo_constructed | loopinfo_cf,
+
+ /** IntERprocedural control loop information constructed and valid. */
+ loopinfo_cf_ip_consistent = loopinfo_constructed | loopinfo_cf | loopinfo_inter | loopinfo_valid,
+ /** IntERprocedural control loop information constructed and invalid. */
+ loopinfo_cf_ip_inconsistent = loopinfo_constructed | loopinfo_cf | loopinfo_inter
+} irg_loopinfo_state;
+
+/** Return the current loop information state. */
+irg_loopinfo_state get_irg_loopinfo_state(const ir_graph *irg);
+
+/** Sets the current loop information state. */
+void set_irg_loopinfo_state(ir_graph *irg, irg_loopinfo_state s);
+
+/** Sets the loop information state to the appropriate inconsistent state.
+ * If state is 'none' does not change. */
+void set_irg_loopinfo_inconsistent(ir_graph *irg);
+/** Sets the loop information state to the appropriate inconsistent state.
+ * If state is 'none' does not change.
+ * Does this for all irgs. */
+void set_irp_loopinfo_inconsistent(void);
+
+/** state: callee_information_state
+ * Call nodes contain a list of possible callees. This list must be
+ * computed by an analysis.
+ *
+ * It's strange that this state is administered on irg basis, as the
+ * information must be computed for the whole program, or not?
+ */
+typedef enum {
+ irg_callee_info_none,
+ irg_callee_info_consistent,
+ irg_callee_info_inconsistent
+} irg_callee_info_state;