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/* Control flow graph manipulation code header file.
Copyright (C) 2014 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#ifndef GCC_CFG_H
#define GCC_CFG_H
extern void init_flow (struct function *);
extern void clear_edges (void);
extern basic_block alloc_block (void);
extern void link_block (basic_block, basic_block);
extern void unlink_block (basic_block);
extern void compact_blocks (void);
extern void expunge_block (basic_block);
extern edge unchecked_make_edge (basic_block, basic_block, int);
extern edge cached_make_edge (sbitmap, basic_block, basic_block, int);
extern edge make_edge (basic_block, basic_block, int);
extern edge make_single_succ_edge (basic_block, basic_block, int);
extern void remove_edge_raw (edge);
extern void redirect_edge_succ (edge, basic_block);
extern void redirect_edge_pred (edge, basic_block);
extern void clear_bb_flags (void);
extern void dump_edge_info (FILE *, edge, int, int);
extern void debug (edge_def &ref);
extern void debug (edge_def *ptr);
extern void alloc_aux_for_blocks (int);
extern void clear_aux_for_blocks (void);
extern void free_aux_for_blocks (void);
extern void alloc_aux_for_edge (edge, int);
extern void alloc_aux_for_edges (int);
extern void clear_aux_for_edges (void);
extern void free_aux_for_edges (void);
extern void debug_bb (basic_block);
extern basic_block debug_bb_n (int);
extern void dump_bb_info (FILE *, basic_block, int, int, bool, bool);
extern void brief_dump_cfg (FILE *, int);
extern void update_bb_profile_for_threading (basic_block, int, gcov_type, edge);
extern void scale_bbs_frequencies_int (basic_block *, int, int, int);
extern void scale_bbs_frequencies_gcov_type (basic_block *, int, gcov_type,
gcov_type);
extern void initialize_original_copy_tables (void);
extern void free_original_copy_tables (void);
extern void set_bb_original (basic_block, basic_block);
extern basic_block get_bb_original (basic_block);
extern void set_bb_copy (basic_block, basic_block);
extern basic_block get_bb_copy (basic_block);
void set_loop_copy (struct loop *, struct loop *);
struct loop *get_loop_copy (struct loop *);
#endif /* GCC_CFG_H */
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