1/* Header file for exception handling.
2   Copyright (C) 2013-2015 Free Software Foundation, Inc.
3
4This file is part of GCC.
5
6GCC is free software; you can redistribute it and/or modify it under
7the terms of the GNU General Public License as published by the Free
8Software Foundation; either version 3, or (at your option) any later
9version.
10
11GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12WARRANTY; without even the implied warranty of MERCHANTABILITY or
13FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 for more details.
15
16You should have received a copy of the GNU General Public License
17along with GCC; see the file COPYING3.  If not see
18<http://www.gnu.org/licenses/>.  */
19
20#ifndef GCC_TREE_EH_H
21#define GCC_TREE_EH_H
22
23#include "hash-map.h"
24
25typedef struct eh_region_d *eh_region;
26
27extern void using_eh_for_cleanups (void);
28extern void add_stmt_to_eh_lp (gimple, int);
29extern bool remove_stmt_from_eh_lp_fn (struct function *, gimple);
30extern bool remove_stmt_from_eh_lp (gimple);
31extern int lookup_stmt_eh_lp_fn (struct function *, gimple);
32extern int lookup_stmt_eh_lp (gimple);
33extern bool make_eh_dispatch_edges (geh_dispatch *);
34extern void make_eh_edges (gimple);
35extern edge redirect_eh_edge (edge, basic_block);
36extern void redirect_eh_dispatch_edge (geh_dispatch *, edge, basic_block);
37extern bool operation_could_trap_helper_p (enum tree_code, bool, bool, bool,
38					   bool, tree, bool *);
39extern bool operation_could_trap_p (enum tree_code, bool, bool, tree);
40extern bool tree_could_trap_p (tree);
41extern bool stmt_could_throw_p (gimple);
42extern bool tree_could_throw_p (tree);
43extern bool stmt_can_throw_external (gimple);
44extern bool stmt_can_throw_internal (gimple);
45extern bool maybe_clean_eh_stmt_fn (struct function *, gimple);
46extern bool maybe_clean_eh_stmt (gimple);
47extern bool maybe_clean_or_replace_eh_stmt (gimple, gimple);
48extern bool maybe_duplicate_eh_stmt_fn (struct function *, gimple,
49					struct function *, gimple,
50					hash_map<void *, void *> *, int);
51extern bool maybe_duplicate_eh_stmt (gimple, gimple);
52extern void maybe_remove_unreachable_handlers (void);
53extern bool verify_eh_edges (gimple);
54extern bool verify_eh_dispatch_edge (geh_dispatch *);
55
56#endif /* GCC_TREE_EH_H */
57