-/* Declarations for Target Values.
- Copyright (C) 1995, 1996 Christian von Roques */
+/*
+ * Copyright (C) 1995-2011 University of Karlsruhe. All right reserved.
+ *
+ * This file is part of libFirm.
+ *
+ * This file may be distributed and/or modified under the terms of the
+ * GNU General Public License version 2 as published by the Free Software
+ * Foundation and appearing in the file LICENSE.GPL included in the
+ * packaging of this file.
+ *
+ * Licensees holding valid libFirm Professional Edition licenses may use
+ * this file in accordance with the libFirm Commercial License.
+ * Agreement provided with the Software.
+ *
+ * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+ * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE.
+ */
/**
-* @file tv_t.h
-*
-* @author Christian von Roques
-*/
-
-/* $Id$ */
+ * @file
+ * @brief Representation of and static computations on target machine
+ * values -- private header.
+ * @date 2003
+ * @author Mathias Heil
+ * @version $Id$
+ */
+#ifndef FIRM_TV_TV_T_H
+#define FIRM_TV_TV_T_H
-#ifndef _TV_T_H_
-#define _TV_T_H_
+#include "firm_common.h"
+#include <assert.h>
+#include "irmode.h"
#include "tv.h"
-#include "xprintf.h"
+
+/** Debugging aid for the firmEvaluator: Marks for reserved tarvals values. */
+enum reserved_id {
+ resid_tarval_bad = 1, /**< tarval_bad marker. */
+ resid_tarval_undefined = 2, /**< tarval_undefined marker. */
+ resid_tarval_b_false = 3, /**< tarval_b_false marker. */
+ resid_tarval_b_true = 4, /**< tarval_b_true marker. */
+ resid_tarval_unreachable = 5, /**< tarval_unreachable marker. */
+ resid_tarval_reachable = 6 /**< tarval_reachable marker. */
+};
/**
- * This struct represents the aforementioned tarvals.
+ * Initialization of the tarval module.
+ *
+ * Call before init_mode().
+ *
+ * @param null_value
+ * The reference mode NULL value, typical 0l
+ * @param support_quad_precision
+ * If non-zero, activate support for quad precision
+ */
+void init_tarval_1(long null_value, int support_quad_precision);
+
+/**
+ * Initialization of the tarval module.
+ *
+ * Call after init_mode().
+ */
+void init_tarval_2(void);
+
+/**
+ * Free all memory occupied by the tarval module.
+ */
+void finish_tarval(void);
+
+/**
+ * This struct represents the afore mentioned tarvals.
*
* A tarval struct consists of an internal representation of the
* value and some additional fields further describing the value.
* @sa
* irmode.h for predefined modes
*/
-struct tarval {
- ir_mode *mode; /**< the mode of the stored value */
- const void *value; /**< the value stored in an internal way... */
- unsigned int length; /**< the length of the stored value */
+struct ir_tarval {
+ firm_kind kind; /**< must be k_tarval */
+ ir_mode *mode; /**< the mode of the stored value */
+ const void *value; /**< the value stored in an internal way... */
+ size_t length; /**< the length of the stored value */
};
-/** xfprint output */
-int tarval_print (XP_PAR1, const xprintf_info *, XP_PARN);
+/* inline functions */
+/*
+ * Access routines for tarval fields ========================================
+ */
+static inline ir_mode *_get_tarval_mode(const ir_tarval *tv)
+{
+ assert(tv);
+ return tv->mode;
+}
+
+static inline ir_tarval *_get_tarval_bad(void)
+{
+ return tarval_bad;
+}
+
+static inline ir_tarval *_get_tarval_undefined(void)
+{
+ return tarval_undefined;
+}
+
+static inline ir_tarval *_get_tarval_b_false(void)
+{
+ return tarval_b_false;
+}
+
+static inline ir_tarval *_get_tarval_b_true(void)
+{
+ return tarval_b_true;
+}
+
+static inline ir_tarval *_get_tarval_reachable(void)
+{
+ return tarval_reachable;
+}
+
+static inline ir_tarval *_get_tarval_unreachable(void)
+{
+ return tarval_unreachable;
+}
+
+static inline int _is_tarval(const void *thing)
+{
+ return get_kind(thing) == k_tarval;
+}
-/** remove tarval representing an entity that is about to be destroyed */
-void free_tarval_entity(entity *ent);
+#define get_tarval_mode(tv) _get_tarval_mode(tv)
+#define get_tarval_bad() _get_tarval_bad()
+#define get_tarval_undefined() _get_tarval_undefined()
+#define get_tarval_b_false() _get_tarval_b_false()
+#define get_tarval_b_true() _get_tarval_b_true()
+#define get_tarval_unreachable() _get_tarval_unreachable()
+#define get_tarval_reachable() _get_tarval_reachable()
+#define is_tarval(thing) _is_tarval(thing)
-#endif /* _TV_T_H_ */
+#endif /* FIRM_TV_TV_T_H */
projects / libfirm / blobdiff