/* Header file for SSA jump threading.
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Copyright (C) 2013-2020 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 it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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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_THREADEDGE_H
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#define GCC_TREE_SSA_THREADEDGE_H
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extern vec<tree> ssa_name_values;
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#define SSA_NAME_VALUE(x) \
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(SSA_NAME_VERSION (x) < ssa_name_values.length () \
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? ssa_name_values[SSA_NAME_VERSION (x)] \
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: NULL_TREE)
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extern void set_ssa_name_value (tree, tree);
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extern void threadedge_initialize_values (void);
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extern void threadedge_finalize_values (void);
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extern bool potentially_threadable_block (basic_block);
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extern void propagate_threaded_block_debug_into (basic_block, basic_block);
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class evrp_range_analyzer;
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extern void thread_outgoing_edges (basic_block, gcond *,
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const_and_copies *,
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avail_exprs_stack *,
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evrp_range_analyzer *,
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tree (*) (gimple *, gimple *,
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avail_exprs_stack *, basic_block));
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#endif /* GCC_TREE_SSA_THREADEDGE_H */
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