cfgcleanup.h

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/* Control flow optimization header file.
   Copyright (C) 2014-2026 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_CFGCLEANUP_H
#define GCC_CFGCLEANUP_H
 
enum replace_direction { dir_none, dir_forward, dir_backward, dir_both };
 
extern int flow_find_cross_jump (basic_block, basic_block, rtx_insn **,
                                 rtx_insn **, enum replace_direction*);
extern int flow_find_head_matching_sequence (basic_block, basic_block,
                                             rtx_insn **, rtx_insn **, int);
extern bool delete_unreachable_blocks (void);
extern void delete_dead_jumptables (void);
extern bool cleanup_cfg (int);
extern bool bb_is_just_return (basic_block, rtx_insn **, rtx_insn **);
 
#endif /* GCC_CFGCLEANUP_H */