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 Representation of and static computations on target machine
23 * values -- private header.
25 * @author Mathias Heil
28 #ifndef FIRM_TV_TV_T_H
29 #define FIRM_TV_TV_T_H
31 #include "firm_config.h"
32 #include "firm_common.h"
38 /** Debugging aid for the firmEvaluator: Marks for reserved tarvals values. */
40 resid_tarval_bad = 1, /**< tarval_bad marker. */
41 resid_tarval_undefined = 2, /**< tarval_undefined marker. */
42 resid_tarval_b_false = 3, /**< tarval_b_false marker. */
43 resid_tarval_b_true = 4 /**< tarval_b_true marker. */
47 * Initialization of the tarval module.
49 * Call before init_mode().
51 * @param null_value The reference mode NULL value, typical 0l
53 void init_tarval_1(long null_value);
56 * Initialization of the tarval module.
58 * Call after init_mode().
60 void init_tarval_2(void);
63 * Free all memory occupied by the tarval module.
65 void finish_tarval(void);
68 * This struct represents the afore mentioned tarvals.
70 * A tarval struct consists of an internal representation of the
71 * value and some additional fields further describing the value.
74 * - ir_mode *mode The mode of the stored value
75 * - void *value The internal representation
78 * irmode.h for predefined modes
81 firm_kind kind; /**< must be k_tarval */
82 ir_mode *mode; /**< the mode of the stored value */
83 const void *value; /**< the value stored in an internal way... */
84 unsigned int length; /**< the length of the stored value */
87 /* inline functions */
89 * Access routines for tarval fields ========================================
91 static INLINE ir_mode *
92 _get_tarval_mode(const tarval *tv) {
97 static INLINE tarval *
98 _get_tarval_bad(void) {
102 static INLINE tarval *
103 _get_tarval_undefined(void) {
104 return tarval_undefined;
107 static INLINE tarval *
108 _get_tarval_b_false(void) {
109 return tarval_b_false;
112 static INLINE tarval *
113 _get_tarval_b_true(void) {
114 return tarval_b_true;
118 _is_tarval(const void *thing) {
119 return get_kind(thing) == k_tarval;
122 #define get_tarval_mode(tv) _get_tarval_mode(tv)
123 #define get_tarval_bad() _get_tarval_bad()
124 #define get_tarval_undefined() _get_tarval_undefined()
125 #define get_tarval_b_false() _get_tarval_b_false()
126 #define get_tarval_b_true() _get_tarval_b_true()
127 #define get_tarval_P_void() _get_tarval_P_void()
128 #define is_tarval(thing) _is_tarval(thing)
130 #endif /* FIRM_TV_TV_T_H */