-/* Declarations for Target Values.
- Copyright (C) 1995, 1996 Christian von Roques */
+/*
+ * Copyright (C) 1995-2007 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_config.h"
+#include <assert.h>
+#include "irmode.h"
#include "tv.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. */
+};
+
+/**
+ * Initialization of the tarval module.
+ *
+ * Call before init_mode().
+ *
+ * @param null_value The reference mode NULL value, typical 0l
+ */
+void init_tarval_1(long null_value);
+
/**
- * This struct represents the aforementioned tarvals.
+ * 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.
* 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 */
+ 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... */
+ unsigned int length; /**< the length of the stored value */
};
-/** remove tarval representing an entity that is about to be destroyed */
-void free_tarval_entity(entity *ent);
+/* inline functions */
+/*
+ * Access routines for tarval fields ========================================
+ */
+static INLINE ir_mode *
+_get_tarval_mode(const tarval *tv) {
+ assert(tv);
+ return tv->mode;
+}
+
+static INLINE tarval *
+_get_tarval_bad(void) {
+ return tarval_bad;
+}
+
+static INLINE tarval *
+_get_tarval_undefined(void) {
+ return tarval_undefined;
+}
+
+static INLINE tarval *
+_get_tarval_b_false(void) {
+ return tarval_b_false;
+}
+
+static INLINE tarval *
+_get_tarval_b_true(void) {
+ return tarval_b_true;
+}
+
+#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_P_void() _get_tarval_P_void()
-#endif /* _TV_T_H_ */
+#endif /* FIRM_TV_TV_T_H */
projects / libfirm / blobdiff