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- /* Communication between registering jump thread requests and
- updating the SSA/CFG for jump threading.
- Copyright (C) 2013-2015 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 _TREE_SSA_THREADUPDATE_H
- #define _TREE_SSA_THREADUPDATE_H 1
- /* In tree-ssa-threadupdate.c. */
- extern bool thread_through_all_blocks (bool);
- enum jump_thread_edge_type
- {
- EDGE_START_JUMP_THREAD,
- EDGE_FSM_THREAD,
- EDGE_COPY_SRC_BLOCK,
- EDGE_COPY_SRC_JOINER_BLOCK,
- EDGE_NO_COPY_SRC_BLOCK
- };
- class jump_thread_edge
- {
- public:
- jump_thread_edge (edge e, enum jump_thread_edge_type type)
- : e (e), type (type) {}
- edge e;
- enum jump_thread_edge_type type;
- };
- extern void register_jump_thread (vec <class jump_thread_edge *> *);
- extern void delete_jump_thread_path (vec <class jump_thread_edge *> *);
- #endif
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