X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Ftv%2Ftv_t.h;h=a8098682719afb67b1c37e5364a51ed29b6b3ee4;hb=f8ead9acbe48af00885e64a6f2f895d1b6cae434;hp=76522b9a5c1fbc9ef482773691c14d1557f64c8c;hpb=36af4d96294e644bbec2246fe309ed8e7a7c62f6;p=libfirm

diff --git a/ir/tv/tv_t.h b/ir/tv/tv_t.h
index 76522b9a5..a80986827 100644
--- a/ir/tv/tv_t.h
+++ b/ir/tv/tv_t.h
@@ -1,32 +1,59 @@
 /*
- * Project:     libFIRM
- * File name:   ir/tv/tv_t.h
- * Purpose:     Representation of and static computations on target machine
- *              values -- private header.
- * Author:      Mathias Heil
- * Modified by:
- * Created:
- * CVS-ID:      $Id$
- * Copyright:   (c) 2003 Universität Karlsruhe
- * Licence:     This file protected by GPL -  GNU GENERAL PUBLIC LICENSE.
+ * 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
+ * @brief    Representation of and static computations on target machine
+ *           values -- private header.
+ * @date     2003
+ * @author   Mathias Heil
+ */
+#ifndef FIRM_TV_TV_T_H
+#define FIRM_TV_TV_T_H
 
+#include "firm_common.h"
 
-#ifndef _TV_T_H_
-#define _TV_T_H_
-
-#include "entity.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. */
+	resid_tarval_unreachable = 5,  /**< tarval_unreachable marker. */
+	resid_tarval_reachable   = 6   /**< tarval_reachable marker. */
+};
 
 /**
  * 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(void);
+void init_tarval_1(long null_value, int support_quad_precision);
 
 /**
  * Initialization of the tarval module.
@@ -53,14 +80,65 @@ void finish_tarval(void);
  * @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 */
-  /* void *link; */                   /**< some opaque information */
+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 */
 };
 
-/** 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 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;
+}
+
+#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 */