| 1 | /* Support routines for dead store elimination. |
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| 2 | Copyright (C) 2019-2023 Free Software Foundation, Inc. |
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| 3 | |
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| 4 | This file is part of GCC. |
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| 5 | |
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| 6 | GCC is free software; you can redistribute it and/or modify |
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| 7 | it under the terms of the GNU General Public License as published by |
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| 8 | the Free Software Foundation; either version 3, or (at your option) |
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| 9 | any later version. |
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| 10 | |
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| 11 | GCC is distributed in the hope that it will be useful, |
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| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 14 | GNU General Public License for more details. |
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| 15 | |
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| 16 | You should have received a copy of the GNU General Public License |
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| 17 | along with GCC; see the file COPYING3. If not see |
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| 18 | <http://www.gnu.org/licenses/>. */ |
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| 19 | |
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| 20 | #ifndef GCC_TREE_SSA_DSE_H |
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| 21 | #define GCC_TREE_SSA_DSE_H |
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| 22 | |
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| 23 | /* Return value from dse_classify_store */ |
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| 24 | enum dse_store_status |
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| 25 | { |
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| 26 | DSE_STORE_LIVE, |
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| 27 | DSE_STORE_MAYBE_PARTIAL_DEAD, |
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| 28 | DSE_STORE_DEAD |
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| 29 | }; |
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| 30 | |
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| 31 | dse_store_status dse_classify_store (ao_ref *, gimple *, bool, sbitmap, |
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| 32 | bool * = NULL, tree = NULL); |
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| 33 | |
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| 34 | void delete_dead_or_redundant_assignment (gimple_stmt_iterator *, const char *, |
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| 35 | bitmap = NULL, bitmap = NULL); |
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| 36 | |
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| 37 | #endif /* GCC_TREE_SSA_DSE_H */ |
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| 38 | |
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