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 Implements several optimizations for ARM.
23 * @author Michael Beck
26 #ifndef FIRM_BE_ARM_ARM_OPTIMIZE_H
27 #define FIRM_BE_ARM_ARM_OPTIMIZE_H
30 #include "bearch_arm_t.h"
32 typedef struct arm_vals {
34 unsigned char values[4];
35 unsigned char rors[4];
39 * Encodes an immediate with shifter operand
41 unsigned int arm_encode_imm_w_shift(unsigned int shift, unsigned int immediate);
44 * Decode an immediate with shifter operand
46 unsigned int arm_decode_imm_w_shift(long imm_value);
49 * construct 8bit values and rot amounts for a 32bit value.
51 void arm_gen_vals_from_word(unsigned int value, arm_vals *result);
54 * Performs Peephole Optimizations an a graph.
56 * @param irg the graph
58 void arm_peephole_optimization(ir_graph *irg);