-typedef struct conflict_graph_def *conflict_graph;
-
-/* Callback function when enumerating conflicts. The arguments are
- the smaller and larger regno in the conflict. Returns zero if
- enumeration is to continue, nonzero to halt enumeration. */
-typedef int (*conflict_graph_enum_fn) (int, int, void *);
-
-
-/* Prototypes of operations on conflict graphs. */
-
-extern conflict_graph conflict_graph_new
- (int);
-extern void conflict_graph_delete (conflict_graph);
-extern int conflict_graph_add (conflict_graph, int, int);
-extern int conflict_graph_conflict_p (conflict_graph, int, int);
-extern void conflict_graph_enum (conflict_graph, int, conflict_graph_enum_fn,
- void *);
-extern void conflict_graph_merge_regs (conflict_graph, int, int);
-extern void conflict_graph_print (conflict_graph, FILE*);