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1 /* Control flow optimization header file.
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2 Copyright (C) 2014-2020 Free Software Foundation, Inc.
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3
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4 This file is part of GCC.
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5
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6 GCC is free software; you can redistribute it and/or modify it under
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7 the terms of the GNU General Public License as published by the Free
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8 Software Foundation; either version 3, or (at your option) any later
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9 version.
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10
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11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with GCC; see the file COPYING3. If not see
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18 <http://www.gnu.org/licenses/>. */
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19
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20
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21 #ifndef GCC_CFGCLEANUP_H
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22 #define GCC_CFGCLEANUP_H
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23
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24 enum replace_direction { dir_none, dir_forward, dir_backward, dir_both };
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25
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26 extern int flow_find_cross_jump (basic_block, basic_block, rtx_insn **,
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27 rtx_insn **, enum replace_direction*);
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28 extern int flow_find_head_matching_sequence (basic_block, basic_block,
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29 rtx_insn **, rtx_insn **, int);
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30 extern bool delete_unreachable_blocks (void);
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31 extern void delete_dead_jumptables (void);
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32 extern bool cleanup_cfg (int);
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33
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34 #endif /* GCC_CFGCLEANUP_H */
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