2 * Copyright (C) 1995-2007 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 control dependence analysis
23 * @author Chrsitoph Mallon
26 #ifndef FIRM_ANA_CDEP_H
27 #define FIRM_ANA_CDEP_H
29 #include "firm_types.h"
31 typedef struct cdep cdep;
37 /** Compute the control dependence graph for a graph. */
38 void compute_cdep(ir_graph *irg);
39 void free_cdep(ir_graph *irg);
41 cdep *find_cdep(const ir_node *block);
43 void exchange_cdep(ir_node *old, const ir_node *nw);
45 int is_cdep_on(const ir_node *dependee, const ir_node *candidate);
47 int is_iterated_cdep_on(ir_node *dependee, ir_node *candidate);
49 ir_node *get_unique_cdep(const ir_node *block);
50 int has_multiple_cdep(const ir_node *block);