/* Support routines for dead store elimination.
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Copyright (C) 2019-2020 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#ifndef GCC_TREE_SSA_DSE_H
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#define GCC_TREE_SSA_DSE_H
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/* Return value from dse_classify_store */
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enum dse_store_status
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{
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DSE_STORE_LIVE,
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DSE_STORE_MAYBE_PARTIAL_DEAD,
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DSE_STORE_DEAD
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};
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dse_store_status dse_classify_store (ao_ref *, gimple *, bool, sbitmap,
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bool * = NULL, tree = NULL);
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void delete_dead_or_redundant_assignment (gimple_stmt_iterator *, const char *,
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bitmap = NULL);
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#endif /* GCC_TREE_SSA_DSE_H */
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