1/* Communication between registering jump thread requests and 2 updating the SSA/CFG for jump threading. 3 Copyright (C) 2013-2015 Free Software Foundation, Inc. 4 5This file is part of GCC. 6 7GCC is free software; you can redistribute it and/or modify 8it under the terms of the GNU General Public License as published by 9the Free Software Foundation; either version 3, or (at your option) 10any later version. 11 12GCC is distributed in the hope that it will be useful, 13but WITHOUT ANY WARRANTY; without even the implied warranty of 14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15GNU General Public License for more details. 16 17You should have received a copy of the GNU General Public License 18along with GCC; see the file COPYING3. If not see 19<http://www.gnu.org/licenses/>. */ 20 21#ifndef _TREE_SSA_THREADUPDATE_H 22#define _TREE_SSA_THREADUPDATE_H 1 23 24/* In tree-ssa-threadupdate.c. */ 25extern bool thread_through_all_blocks (bool); 26enum jump_thread_edge_type 27{ 28 EDGE_START_JUMP_THREAD, 29 EDGE_FSM_THREAD, 30 EDGE_COPY_SRC_BLOCK, 31 EDGE_COPY_SRC_JOINER_BLOCK, 32 EDGE_NO_COPY_SRC_BLOCK 33}; 34 35class jump_thread_edge 36{ 37public: 38 jump_thread_edge (edge e, enum jump_thread_edge_type type) 39 : e (e), type (type) {} 40 41 edge e; 42 enum jump_thread_edge_type type; 43}; 44 45extern void register_jump_thread (vec <class jump_thread_edge *> *); 46extern void delete_jump_thread_path (vec <class jump_thread_edge *> *); 47#endif 48