1/* Header file for SSA jump threading.
2 Copyright (C) 2013-2017 Free Software Foundation, Inc.
3
4This file is part of GCC.
5
6GCC is free software; you can redistribute it and/or modify it under
7the terms of the GNU General Public License as published by the Free
8Software Foundation; either version 3, or (at your option) any later
9version.
10
11GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12WARRANTY; without even the implied warranty of MERCHANTABILITY or
13FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 for more details.
15
16You should have received a copy of the GNU General Public License
17along with GCC; see the file COPYING3. If not see
18<http://www.gnu.org/licenses/>. */
19
20#ifndef GCC_TREE_SSA_THREADEDGE_H
21#define GCC_TREE_SSA_THREADEDGE_H
22
23extern vec<tree> ssa_name_values;
24#define SSA_NAME_VALUE(x) \
25 (SSA_NAME_VERSION (x) < ssa_name_values.length () \
26 ? ssa_name_values[SSA_NAME_VERSION (x)] \
27 : NULL_TREE)
28extern void set_ssa_name_value (tree, tree);
29extern void threadedge_initialize_values (void);
30extern void threadedge_finalize_values (void);
31extern bool potentially_threadable_block (basic_block);
32extern void propagate_threaded_block_debug_into (basic_block, basic_block);
33class evrp_range_analyzer;
34extern void thread_outgoing_edges (basic_block, gcond *,
35 const_and_copies *,
36 avail_exprs_stack *,
37 evrp_range_analyzer *,
38 tree (*) (gimple *, gimple *,
39 avail_exprs_stack *, basic_block));
40
41#endif /* GCC_TREE_SSA_THREADEDGE_H */
42