| /* Communication between registering jump thread requests and |
| updating the SSA/CFG for jump threading. |
| Copyright (C) 2013-2014 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_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 |
