2 * Analysis to compute phi congruence classes.
14 #include "irnodeset.h"
16 typedef struct _phi_classes_t phi_classes_t;
19 * Return the array containing all nodes assigned to the same Phi class as @p irn.
21 ir_node **get_phi_class(phi_classes_t *pc, ir_node *irn);
24 * Assigns a new array of nodes representing the new Phi class to @p irn.
26 void set_phi_class(phi_classes_t *pc, ir_node *irn, ir_node **cls);
29 * Returns a set containing all computed Phi classes.
31 pset *get_all_phi_classes(phi_classes_t *pc);
34 * Builds the Phi classes for all Phis in @p irg.
35 * @param irg The irg the classes should be build for
36 * @param pure_phi_classes Set to one if Phi classes should only contain Phi nodes.
37 * Beware: This might result in different (more) Phi classes as if not set
38 * @return The Phi class object for the @p irg.
40 phi_classes_t *phi_class_new_from_irg(ir_graph *irg, int pure_phi_classes);
43 * Builds all Phi classes for the given set of Phis.
44 * @param irg The irg, the Phis are from
45 * @param all_phis An ir_nodeset containing all Phis nodes to build the classes for
46 * @param pure_phi_classes Set to one if Phi classes should only contain Phi nodes.
47 * Beware: This might result in different (more) Phi classes as if not set
48 * @return The Phis class object for @p all_phis.
50 phi_classes_t *phi_class_new_from_set(ir_graph *irg, ir_nodeset_t *all_phis, int pure_phi_classes);
53 * Free all allocated data.
55 void phi_class_free(phi_classes_t *pc);
57 #endif /* _PHICLASS_H_ */