1 /* Define control flow data structures for the CFG. 2 Copyright (C) 2014-2021 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 */ 62