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 This file contains functions for matching firm graphs for
23 * nodes that can be used as address mode for x86 instructions
24 * @author Matthias Braun
27 #ifndef IA32_ADDRESS_MODE_H
28 #define IA32_ADDRESS_MODE_H
34 * The address mode data: Used to construct (memory) address modes.
36 typedef struct ia32_address_t ia32_address_t;
37 struct ia32_address_t {
38 ir_node *base; /**< The base register (if any) */
39 ir_node *index; /**< The index register (if any). */
40 ir_node *mem; /**< The memory value (if any). */
41 int offset; /**< An integer offset. */
42 int scale; /**< An integer scale. {0,1,2,3} */
43 ir_entity *symconst_ent; /**< A SynConst entity if any. */
44 int use_frame; /**< Set, if the frame is accessed */
45 ir_entity *frame_entity; /**< The accessed frame entity if any. */
46 int symconst_sign; /**< The "sign" of the symconst. */
50 * Create an address mode for a given node.
52 void ia32_create_address_mode(ia32_address_t *addr, ir_node *node, int force);
55 * Mark those nodes of the given graph that cannot be used inside an
56 * address mode because there values must be materialized in registers.
58 void ia32_calculate_non_address_mode_nodes(be_irg_t *birg);
61 * Free the non_address_mode information.
63 void ia32_free_non_address_mode_nodes(void);
66 * Tells whether the given node is a non address mode node.
68 int ia32_is_non_address_mode_node(ir_node *node);
71 * mark a node so it will not be used as part of address modes
73 void ia32_mark_non_am(ir_node *node);