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 Global Value Numbering Partial Redundancy Elimination
23 * (VanDrunen Hosking 2004)
24 * @author Michael Beck, Rubino Geiss
27 #ifndef FIRM_OPT_GVN_PRE_H
28 #define FIRM_OPT_GVN_PRE_H
30 #include "firm_types.h"
33 * Does Partial Redundancy Elimination combined with
34 * Global Value Numbering.
35 * Can be used to replace place_code() completely.
37 * Based on VanDrunen and Hosking 2004.
39 * @param irg the graph
42 * Currently completely broken because the used sets do NOT
43 * preserve the topological sort of its elements.
45 void do_gvn_pre(ir_graph *irg);
47 #endif /* FIRM_OPT_GVN_PRE_H */