2 * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
4 * This file is part of libFirm.
6 * This file may be distributed and/or modified under the terms of the
7 * GNU General Public License version 2 as published by the Free Software
8 * Foundation and appearing in the file LICENSE.GPL included in the
9 * packaging of this file.
11 * Licensees holding valid libFirm Professional Edition licenses may use
12 * this file in accordance with the libFirm Commercial License.
13 * Agreement provided with the Software.
15 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
16 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * @brief Construct and access dominator tree -- private datastructures.
23 * @author Goetz Lindenmaier
26 #ifndef FIRM_ANA_IRDOM_T_H
27 #define FIRM_ANA_IRDOM_T_H
31 /** For dominator information */
32 typedef struct ir_dom_info {
33 ir_node *idom; /**< immediate CFG dominator */
34 ir_node *next; /**< The next node in the dominated list of @c idom. */
35 ir_node *first; /**< The first node in the list of nodes
36 this nodes dominates immediately. */
37 unsigned tree_pre_num; /**< The pre-order number from a dfs walk
38 over the dominator tree. */
39 unsigned max_subtree_pre_num; /**< The largest tree pre num found in the
40 dominator subtree of this node. */
41 int pre_num; /**< pre-order graph-walk number */
42 int dom_depth; /**< depth in dominator-tree */
45 void set_Block_idom(ir_node *bl, ir_node *n);
47 int get_Block_dom_depth(const ir_node *bl);
48 void set_Block_dom_depth(ir_node *bl, int depth);
50 int get_Block_dom_pre_num(const ir_node *bl);
51 void set_Block_dom_pre_num(ir_node *bl, int num);
53 void set_Block_ipostdom(ir_node *bl, ir_node *n);
55 int get_Block_postdom_depth(const ir_node *bl);
56 void set_Block_postdom_depth(ir_node *bl, int depth);
58 int get_Block_postdom_pre_num(const ir_node *bl);
59 void set_Block_postdom_pre_num(ir_node *bl, int num);
61 unsigned get_Block_dom_tree_pre_num(const ir_node *bl);
62 unsigned get_Block_pdom_tree_pre_num(const ir_node *bl);
64 unsigned get_Block_dom_max_subtree_pre_num(const ir_node *bl);
65 unsigned get_Block_pdom_max_subtree_pre_num(const ir_node *bl);