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cfgrtl.h revision 1.4 
      1 /* Define control flow data structures for the CFG.
      2    Copyright (C) 2014-2018 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 rtx_insn *unlink_insn_chain (rtx_insn *, rtx_insn *);
     51 extern void relink_block_chain (bool);
     52 extern rtx_insn *duplicate_insn_chain (rtx_insn *, rtx_insn *);
     53 extern void cfg_layout_initialize (int);
     54 extern void cfg_layout_finalize (void);
     55 extern void break_superblocks (void);
     56 extern void init_rtl_bb_info (basic_block);
     57 extern void find_bbs_reachable_by_hot_paths (hash_set <basic_block> *);
     58 
     59 #endif /* GCC_CFGRTL_H */
     60