gcc/tree-ssa-dse.h

   1 /* Support routines for dead store elimination.
   2    Copyright (C) 2019 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 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 3, or (at your option)
   9 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 GCC_TREE_SSA_DSE_H
  21 #define GCC_TREE_SSA_DSE_H
  22
  23 /* Return value from dse_classify_store */
  24 enum dse_store_status
  25 {
  26   DSE_STORE_LIVE,
  27   DSE_STORE_MAYBE_PARTIAL_DEAD,
  28   DSE_STORE_DEAD
  29 };
  30
  31 dse_store_status dse_classify_store (ao_ref *, gimple *, bool, sbitmap,
  32                                      bool * = NULL, tree = NULL);
  33
  34 void delete_dead_or_redundant_assignment (gimple_stmt_iterator *, const char *);
  35
  36 #endif   /* GCC_TREE_SSA_DSE_H  */