ree);
extern tree blocks_nreverse (tree);
extern tree block_chainon (tree, tree);

/* Set BLOCK_NUMBER for all the blocks in FN.  */
extern void number_blocks (tree);

/* cfun shouldn't be set directly; use one of these functions instead.  */
extern void set_cfun (struct function *new_cfun, bool force = false);
extern void push_cfun (struct function *new_cfun);
extern void pop_cfun (void);
extern void push_function_decl (tree, bool = false);
extern void pop_function_decl (void);

extern int get_next_funcdef_no (void);
extern int get_last_funcdef_no (void);
extern void allocate_struct_function (tree, bool);
extern void push_struct_function (tree fndecl, bool = false);
extern void push_dummy_function (bool);
extern void pop_dummy_function (void);
extern void init_dummy_function_start (void);
extern void init_function_start (tree);
extern void stack_protect_epilogue (void);
extern void expand_function_start (tree);
extern void expand_dummy_function_end (void);

extern void thread_prologue_and_epilogue_insns (void);
extern void diddle_return_value (void (*)(rtx, void*), void*);
extern void clobber_return_register (void);
extern void expand_function_end (void);
extern rtx get_arg_pointer_save_area (void);
extern void maybe_copy_prologue_epilogue_insn (rtx, rtx);
extern bool prologue_contains (const rtx_insn *);
extern bool epilogue_contains (const rtx_insn *);
extern bool prologue_epilogue_contains (const rtx_insn *);
extern void record_prologue_seq (rtx_insn *);
extern void record_epilogue_seq (rtx_insn *);
extern void emit_return_into_block (bool simple_p, basic_block bb);
extern void set_return_jump_label (rtx_insn *);
extern bool active_insn_between (rtx_insn *head, rtx_insn *tail);
extern vec<edge> convert_jumps_to_returns (basic_block last_bb, bool simple_p,
					   vec<edge> unconverted);
extern basic_block emit_return_for_exit (edge exit_fallthru_edge,
					 bool simple_p);
extern void reposition_prologue_and_epilogue_notes (void);
extern poly_int64 get_stack_dynamic_offset ();

/* Returns the name of the current function.  */
extern const char *fndecl_name (tree);
extern const char *function_name (const function *);
extern const char *current_function_name (void);

extern void used_types_insert (tree);

extern bool currently_expanding_function_start;

#endif  /* GCC_FUNCTION_H */