1  /* Define control flow data structures for the CFG.
       2     Copyright (C) 2014-2023 Free Software Foundation, Inc.
       3  
       4  This file is part of GCC.
       5  
       6  GCC is free software; you can redistribute it and/or modify it under
       7  the terms of the GNU General Public License as published by the Free
       8  Software Foundation; either version 3, or (at your option) any later
       9  version.
      10  
      11  GCC is distributed in the hope that it will be useful, but WITHOUT ANY
      12  WARRANTY; without even the implied warranty of MERCHANTABILITY or
      13  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
      14  for more details.
      15  
      16  You should have received a copy of the GNU General Public License
      17  along with GCC; see the file COPYING3.  If not see
      18  <http://www.gnu.org/licenses/>.  */
      19  
      20  #ifndef GCC_CFGRTL_H
      21  #define GCC_CFGRTL_H
      22  
      23  extern void delete_insn (rtx_insn *);
      24  extern bool delete_insn_and_edges (rtx_insn *);
      25  extern void delete_insn_chain (rtx, rtx_insn *, bool);
      26  extern basic_block create_basic_block_structure (rtx_insn *, rtx_insn *,
      27  						 rtx_note *, basic_block);
      28  extern void compute_bb_for_insn (void);
      29  extern unsigned int free_bb_for_insn (void);
      30  extern rtx_insn *entry_of_function (void);
      31  extern void update_bb_for_insn (basic_block);
      32  extern bool contains_no_active_insn_p (const_basic_block);
      33  extern bool forwarder_block_p (const_basic_block);
      34  extern bool can_fallthru (basic_block, basic_block);
      35  extern rtx_note *bb_note (basic_block);
      36  extern rtx_code_label *block_label (basic_block);
      37  extern edge try_redirect_by_replacing_jump (edge, basic_block, bool);
      38  extern void emit_barrier_after_bb (basic_block bb);
      39  extern basic_block force_nonfallthru_and_redirect (edge, basic_block, rtx);
      40  extern void insert_insn_on_edge (rtx, edge);
      41  extern void commit_one_edge_insertion (edge e);
      42  extern void commit_edge_insertions (void);
      43  extern void print_rtl_with_bb (FILE *, const rtx_insn *, dump_flags_t);
      44  extern void update_br_prob_note (basic_block);
      45  extern rtx_insn *get_last_bb_insn (basic_block);
      46  extern void fixup_partitions (void);
      47  extern bool purge_dead_edges (basic_block);
      48  extern bool purge_all_dead_edges (void);
      49  extern bool fixup_abnormal_edges (void);
      50  extern void update_cfg_for_uncondjump (rtx_insn *);
      51  extern rtx_insn *unlink_insn_chain (rtx_insn *, rtx_insn *);
      52  extern void relink_block_chain (bool);
      53  extern rtx_insn *duplicate_insn_chain (rtx_insn *, rtx_insn *,
      54  				       class loop *, class copy_bb_data *);
      55  extern void cfg_layout_initialize (int);
      56  extern void cfg_layout_finalize (void);
      57  extern void break_superblocks (void);
      58  extern void init_rtl_bb_info (basic_block);
      59  extern void find_bbs_reachable_by_hot_paths (hash_set <basic_block> *);
      60  
      61  #endif /* GCC_CFGRTL_H */