gcc/cfgcleanup.h

   1 /* Control flow optimization header file.
   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
  21 #ifndef GCC_CFGCLEANUP_H
  22 #define GCC_CFGCLEANUP_H
  23
  24 enum replace_direction { dir_none, dir_forward, dir_backward, dir_both };
  25
  26 extern int flow_find_cross_jump (basic_block, basic_block, rtx_insn **,
  27                                  rtx_insn **, enum replace_direction*);
  28 extern int flow_find_head_matching_sequence (basic_block, basic_block,
  29                                              rtx_insn **, rtx_insn **, int);
  30 extern bool delete_unreachable_blocks (void);
  31 extern void delete_dead_jumptables (void);
  32 extern bool cleanup_cfg (int);
  33
  34 #endif /* GCC_CFGCLEANUP_H */