gcc/tree-eh.h

   1 /* Header file for exception handling.
   2    Copyright (C) 2013-2021 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 */