/* Search for references that a functions loads or stores.
   Copyright (C) 2019 Free Software Foundation, Inc.

This file is part of GCC.

GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.

GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3.  If not see
<http://www.gnu.org/licenses/>.  */

#ifndef IPA_MODREF_H
#define IPA_MODREF_H

typedef modref_tree <alias_set_type> modref_records;
typedef modref_tree <tree> modref_records_lto;

/* Single function summary.  */

struct GTY(()) modref_summary
{
  /* Load and stores in function (transitively closed to all callees)  */
  modref_records *loads;
  modref_records *stores;

  /* The same but using tree types rather than alias sets.  This is necessary
     to make the information streamable for LTO but is also more verbose
     and thus more likely to hit the limits.  */
  modref_records_lto *loads_lto;
  modref_records_lto *stores_lto;
  bool finished;

  modref_summary ();
  ~modref_summary ();
  void dump (FILE *);
  bool useful_p (int ecf_flags);
  bool lto_useful_p (int ecf_flags);
};

modref_summary *get_modref_function_summary (cgraph_node *func);
void ipa_modref_c_finalize ();
void ipa_merge_modref_summary_after_inlining (cgraph_edge *e);

#endif