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 procedure cloning
23 * @author Beyhan Veliev
26 #ifndef FIRM_OPT_PROC_CLONING_H
27 #define FIRM_OPT_PROC_CLONING_H
29 #include "firm_types.h"
31 /** A default threshold. */
32 #define DEFAULT_CLONE_THRESHOLD 300
35 * Do procedure cloning. Evaluate a heuristic weight for every
36 * Call(..., Const, ...). If the weight is bigger than threshold,
37 * clone the entity and fix the calls.
39 * @param threshold the threshold for cloning
41 * The threshold is an estimation of how many instructions are saved
42 * when executing a cloned method. If threshold is 0.0, every possible
45 void proc_cloning(float threshold);