extern bool can_copy_bbs_p (basic_block *, unsigned);
extern void copy_bbs (basic_block *, unsigned, basic_block *,
edge *, unsigned, edge *, struct loop *);
-extern bool scan_ahead_for_unlikely_executed_note (rtx);
extern rtx duplicate_insn_chain (rtx, rtx);
#endif /* GCC_CFGLAYOUT_H */