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/* Support routines for dead store elimination.
Copyright (C) 2019-2022 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 GCC_TREE_SSA_DSE_H
#define GCC_TREE_SSA_DSE_H
/* Return value from dse_classify_store */
enum dse_store_status
{
DSE_STORE_LIVE,
DSE_STORE_MAYBE_PARTIAL_DEAD,
DSE_STORE_DEAD
};
dse_store_status dse_classify_store (ao_ref *, gimple *, bool, sbitmap,
bool * = NULL, tree = NULL);
void delete_dead_or_redundant_assignment (gimple_stmt_iterator *, const char *,
bitmap = NULL, bitmap = NULL);
#endif /* GCC_TREE_SSA_DSE_H */
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