enum fdo_note_kind {fdo_none, fdo_incoming, fdo_outgoing, fdo_block,
fdo_tablejump};
extern void init_feedback PARAMS ((const char *));
extern tree end_feedback PARAMS ((void));
extern void set_fdo_note_count PARAMS ((rtx, HOST_WIDEST_INT));
extern HOST_WIDEST_INT get_fdo_note_count PARAMS ((rtx));
extern void emit_rtx_feedback_counter PARAMS ((tree, int, enum fdo_note_kind));
extern unsigned int n_slots PARAMS ((tree));
extern void clone_rtx_feedback_counter PARAMS ((tree, tree));
extern void emit_rtx_call_feedback_counter PARAMS ((tree));
extern void decorate_for_feedback PARAMS ((tree));
extern void add_new_feedback_specifics_to_header PARAMS ((tree *, tree *));
extern HOST_WIDEST_INT times_call_executed PARAMS ((tree));
extern void set_times_call_executed PARAMS ((tree, HOST_WIDEST_INT));
extern HOST_WIDEST_INT times_arc_executed PARAMS ((tree, unsigned int));
extern void set_times_arc_executed PARAMS ((tree, unsigned int, HOST_WIDEST_INT));
extern void note_feedback_count_to_br_prob PARAMS ((void));
extern void expand_function_feedback_end PARAMS ((void));
extern unsigned int n_slots PARAMS ((tree));