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1 /* Define control flow data structures for the CFG.
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145
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2 Copyright (C) 2014-2020 Free Software Foundation, Inc.
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111
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3
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4 This file is part of GCC.
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5
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6 GCC is free software; you can redistribute it and/or modify it under
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7 the terms of the GNU General Public License as published by the Free
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8 Software Foundation; either version 3, or (at your option) any later
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9 version.
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10
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11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with GCC; see the file COPYING3. If not see
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18 <http://www.gnu.org/licenses/>. */
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19
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20 #ifndef GCC_CFGRTL_H
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21 #define GCC_CFGRTL_H
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22
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23 extern void delete_insn (rtx_insn *);
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24 extern bool delete_insn_and_edges (rtx_insn *);
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25 extern void delete_insn_chain (rtx, rtx_insn *, bool);
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26 extern basic_block create_basic_block_structure (rtx_insn *, rtx_insn *,
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27 rtx_note *, basic_block);
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28 extern void compute_bb_for_insn (void);
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29 extern unsigned int free_bb_for_insn (void);
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30 extern rtx_insn *entry_of_function (void);
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31 extern void update_bb_for_insn (basic_block);
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32 extern bool contains_no_active_insn_p (const_basic_block);
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33 extern bool forwarder_block_p (const_basic_block);
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34 extern bool can_fallthru (basic_block, basic_block);
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35 extern rtx_note *bb_note (basic_block);
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36 extern rtx_code_label *block_label (basic_block);
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37 extern edge try_redirect_by_replacing_jump (edge, basic_block, bool);
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38 extern void emit_barrier_after_bb (basic_block bb);
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39 extern basic_block force_nonfallthru_and_redirect (edge, basic_block, rtx);
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40 extern void insert_insn_on_edge (rtx, edge);
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41 extern void commit_one_edge_insertion (edge e);
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42 extern void commit_edge_insertions (void);
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43 extern void print_rtl_with_bb (FILE *, const rtx_insn *, dump_flags_t);
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44 extern void update_br_prob_note (basic_block);
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45 extern rtx_insn *get_last_bb_insn (basic_block);
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46 extern void fixup_partitions (void);
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47 extern bool purge_dead_edges (basic_block);
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48 extern bool purge_all_dead_edges (void);
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49 extern bool fixup_abnormal_edges (void);
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50 extern rtx_insn *unlink_insn_chain (rtx_insn *, rtx_insn *);
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51 extern void relink_block_chain (bool);
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52 extern rtx_insn *duplicate_insn_chain (rtx_insn *, rtx_insn *);
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53 extern void cfg_layout_initialize (int);
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54 extern void cfg_layout_finalize (void);
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55 extern void break_superblocks (void);
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56 extern void init_rtl_bb_info (basic_block);
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57 extern void find_bbs_reachable_by_hot_paths (hash_set <basic_block> *);
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58
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59 #endif /* GCC_CFGRTL_H */
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