1/* Header file for exception handling. 2 Copyright (C) 2013-2020 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 24typedef struct eh_region_d *eh_region; 25 26extern void using_eh_for_cleanups (void); 27extern void add_stmt_to_eh_lp (gimple *, int); 28extern bool remove_stmt_from_eh_lp_fn (struct function *, gimple *); 29extern bool remove_stmt_from_eh_lp (gimple *); 30extern int lookup_stmt_eh_lp_fn (struct function *, const gimple *); 31extern int lookup_stmt_eh_lp (const gimple *); 32extern bool make_eh_dispatch_edges (geh_dispatch *); 33extern void make_eh_edges (gimple *); 34extern edge redirect_eh_edge (edge, basic_block); 35extern void redirect_eh_dispatch_edge (geh_dispatch *, edge, basic_block); 36extern bool operation_could_trap_helper_p (enum tree_code, bool, bool, bool, 37 bool, tree, bool *); 38extern bool operation_could_trap_p (enum tree_code, bool, bool, tree); 39extern bool tree_could_trap_p (tree); 40extern tree rewrite_to_non_trapping_overflow (tree); 41extern bool stmt_could_throw_p (function *, gimple *); 42extern bool stmt_unremovable_because_of_non_call_eh_p (function *, gimple *); 43extern bool tree_could_throw_p (tree); 44extern bool stmt_can_throw_external (function *, gimple *); 45extern bool stmt_can_throw_internal (function *, gimple *); 46extern bool maybe_clean_eh_stmt_fn (struct function *, gimple *); 47extern bool maybe_clean_eh_stmt (gimple *); 48extern bool maybe_clean_or_replace_eh_stmt (gimple *, gimple *); 49extern bool maybe_duplicate_eh_stmt_fn (struct function *, gimple *, 50 struct function *, gimple *, 51 hash_map<void *, void *> *, int); 52extern bool maybe_duplicate_eh_stmt (gimple *, gimple *); 53extern void maybe_remove_unreachable_handlers (void); 54extern void unsplit_eh_edges (void); 55extern bool verify_eh_edges (gimple *); 56extern bool verify_eh_dispatch_edge (geh_dispatch *); 57 58#endif /* GCC_TREE_EH_H */ 59