gcc/tree-ssa-alias-compare.h

   1 /* Comparsion of AO ref.
   2    Copyright (C) 2020-2021 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
   7    under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    GCC is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License 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 TREE_SSA_ALIAS_COMPARE_H
  21 #define TREE_SSA_ALIAS_COMPARE_H
  22
  23 class operand_compare;
  24 /* A class aggregating all connections and semantic equivalents
  25    for a given pair of semantic function candidates.  */
  26 class ao_compare : public operand_compare
  27 {
  28   public:
  29   enum ao_ref_diff
  30   {
  31     SEMANTICS = 1,
  32     BASE_ALIAS_SET = 2,
  33     REF_ALIAS_SET = 4,
  34     ACCESS_PATH = 8,
  35     DEPENDENCE_CLIQUE = 16
  36   };
  37   int compare_ao_refs (ao_ref *ref1, ao_ref *ref2, bool lto_streaming_safe,
  38                        bool tbaa);
  39   void hash_ao_ref (ao_ref *ref, bool lto_streaming_safe, bool tbaa,
  40                     inchash::hash &hstate);
  41 };
  42
  43 #endif