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1 /* Header file for exception handling.
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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_EH_H
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21 #define GCC_TREE_EH_H
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22
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23
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24 typedef struct eh_region_d *eh_region;
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25
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26 extern void using_eh_for_cleanups (void);
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27 extern void add_stmt_to_eh_lp (gimple *, int);
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28 extern bool remove_stmt_from_eh_lp_fn (struct function *, gimple *);
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29 extern bool remove_stmt_from_eh_lp (gimple *);
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30 extern int lookup_stmt_eh_lp_fn (struct function *, const gimple *);
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31 extern int lookup_stmt_eh_lp (const gimple *);
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32 extern bool make_eh_dispatch_edges (geh_dispatch *);
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33 extern void make_eh_edges (gimple *);
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34 extern edge redirect_eh_edge (edge, basic_block);
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35 extern void redirect_eh_dispatch_edge (geh_dispatch *, edge, basic_block);
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36 extern bool operation_could_trap_helper_p (enum tree_code, bool, bool, bool,
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37 bool, tree, bool *);
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38 extern bool operation_could_trap_p (enum tree_code, bool, bool, tree);
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39 extern bool tree_could_trap_p (tree);
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40 extern tree rewrite_to_non_trapping_overflow (tree);
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41 extern bool stmt_could_throw_p (function *, gimple *);
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42 extern bool tree_could_throw_p (tree);
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43 extern bool stmt_can_throw_external (function *, gimple *);
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44 extern bool stmt_can_throw_internal (function *, gimple *);
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45 extern bool maybe_clean_eh_stmt_fn (struct function *, gimple *);
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46 extern bool maybe_clean_eh_stmt (gimple *);
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47 extern bool maybe_clean_or_replace_eh_stmt (gimple *, gimple *);
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48 extern bool maybe_duplicate_eh_stmt_fn (struct function *, gimple *,
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49 struct function *, gimple *,
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50 hash_map<void *, void *> *, int);
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51 extern bool maybe_duplicate_eh_stmt (gimple *, gimple *);
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52 extern void maybe_remove_unreachable_handlers (void);
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53 extern void unsplit_eh_edges (void);
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54 extern bool verify_eh_edges (gimple *);
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55 extern bool verify_eh_dispatch_edge (geh_dispatch *);
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56
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57 #endif /* GCC_TREE_EH_H */
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