1 /* Control flow optimization header file. 2 Copyright (C) 2014-2018 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 */ 35