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1 /* Header file for Induction variable optimizations.
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2 Copyright (C) 2013-2020 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 #ifndef GCC_TREE_SSA_LOOP_IVOPTS_H
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21 #define GCC_TREE_SSA_LOOP_IVOPTS_H
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22
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23 extern edge single_dom_exit (class loop *);
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24 extern void dump_iv (FILE *, struct iv *);
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25 extern void dump_use (FILE *, struct iv_use *);
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26 extern void dump_uses (FILE *, struct ivopts_data *);
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27 extern void dump_cand (FILE *, struct iv_cand *);
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28 extern bool contains_abnormal_ssa_name_p (tree);
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29 extern class loop *outermost_invariant_loop_for_expr (class loop *, tree);
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30 extern bool expr_invariant_in_loop_p (class loop *, tree);
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31 extern tree strip_offset (tree, poly_uint64_pod *);
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32 bool may_be_nonaddressable_p (tree expr);
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33 void tree_ssa_iv_optimize (void);
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34
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35 void create_canonical_iv (class loop *, edge, tree,
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36 tree * = NULL, tree * = NULL);
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37 #endif /* GCC_TREE_SSA_LOOP_IVOPTS_H */
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