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1 /* Basic block reordering routines for the GNU compiler.
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2 Copyright (C) 2000, 2003, 2004, 2007 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
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7 under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 3, or (at your option)
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9 any later version.
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10
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11 GCC is distributed in the hope that it will be useful, but WITHOUT
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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13 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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14 License 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 #ifndef GCC_CFGLAYOUT_H
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21 #define GCC_CFGLAYOUT_H
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22
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23 #include "basic-block.h"
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24
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25 extern GTY(()) rtx cfg_layout_function_footer;
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26 extern GTY(()) rtx cfg_layout_function_header;
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27
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28 extern void cfg_layout_initialize (unsigned int);
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29 extern void cfg_layout_finalize (void);
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30 extern void reemit_insn_block_notes (void);
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31 extern bool can_copy_bbs_p (basic_block *, unsigned);
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32 extern void copy_bbs (basic_block *, unsigned, basic_block *,
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33 edge *, unsigned, edge *, struct loop *,
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34 basic_block);
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35 extern rtx duplicate_insn_chain (rtx, rtx);
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36
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37 #endif /* GCC_CFGLAYOUT_H */
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