1  /* Header file for exception handling.
       2     Copyright (C) 2013-2023 Free Software Foundation, Inc.
       3  
       4  This file is part of GCC.
       5  
       6  GCC is free software; you can redistribute it and/or modify it under
       7  the terms of the GNU General Public License as published by the Free
       8  Software Foundation; either version 3, or (at your option) any later
       9  version.
      10  
      11  GCC is distributed in the hope that it will be useful, but WITHOUT ANY
      12  WARRANTY; without even the implied warranty of MERCHANTABILITY or
      13  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
      14   for more details.
      15  
      16  You should have received a copy of the GNU General Public License
      17  along 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  
      24  typedef struct eh_region_d *eh_region;
      25  
      26  extern void using_eh_for_cleanups (void);
      27  extern void add_stmt_to_eh_lp (gimple *, int);
      28  extern bool remove_stmt_from_eh_lp_fn (struct function *, gimple *);
      29  extern bool remove_stmt_from_eh_lp (gimple *);
      30  extern int lookup_stmt_eh_lp_fn (struct function *, const gimple *);
      31  extern int lookup_stmt_eh_lp (const gimple *);
      32  extern bool make_eh_dispatch_edges (geh_dispatch *);
      33  extern void make_eh_edges (gimple *);
      34  extern edge redirect_eh_edge (edge, basic_block);
      35  extern void redirect_eh_dispatch_edge (geh_dispatch *, edge, basic_block);
      36  extern bool operation_could_trap_helper_p (enum tree_code, bool, bool, bool,
      37  					   bool, tree, bool *);
      38  extern bool operation_could_trap_p (enum tree_code, bool, bool, tree);
      39  extern bool tree_could_trap_p (tree);
      40  extern tree rewrite_to_non_trapping_overflow (tree);
      41  extern bool stmt_could_throw_p (function *, gimple *);
      42  extern bool stmt_unremovable_because_of_non_call_eh_p (function *, gimple *);
      43  extern bool tree_could_throw_p (tree);
      44  extern bool stmt_can_throw_external (function *, gimple *);
      45  extern bool stmt_can_throw_internal (function *, gimple *);
      46  extern bool maybe_clean_eh_stmt_fn (struct function *, gimple *);
      47  extern bool maybe_clean_eh_stmt (gimple *);
      48  extern bool maybe_clean_or_replace_eh_stmt (gimple *, gimple *);
      49  extern bool maybe_duplicate_eh_stmt_fn (struct function *, gimple *,
      50  					struct function *, gimple *,
      51  					hash_map<void *, void *> *, int);
      52  extern bool maybe_duplicate_eh_stmt (gimple *, gimple *);
      53  extern void maybe_remove_unreachable_handlers (void);
      54  extern void unsplit_eh_edges (void);
      55  extern bool verify_eh_edges (gimple *);
      56  extern bool verify_eh_dispatch_edge (geh_dispatch *);
      57  
      58  #endif /* GCC_TREE_EH_H */