X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbeuses.h;h=17b838ac0217a3417e8a0bedaf7d0dc1f4be48d4;hb=7c4e33eb7648d9e1cc7efcffc8682a2f27a570a3;hp=68f4b57f51eb726b40c901c7f08e226bc4c20ecd;hpb=0c92b911be3d9d02b4a49b2a142dab8d7ba978a6;p=libfirm

diff --git a/ir/be/beuses.h b/ir/be/beuses.h
index 68f4b57f5..17b838ac0 100644
--- a/ir/be/beuses.h
+++ b/ir/be/beuses.h
@@ -1,31 +1,54 @@
-/**
- * @file   beuse.h
- * @date   27.06.2005
- * @author Sebastian Hack, Matthias Braun
+/*
+ * Copyright (C) 1995-2008 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.
  *
- * Determine future usages of values.
+ * Licensees holding valid libFirm Professional Edition licenses may use
+ * this file in accordance with the libFirm Commercial License.
+ * Agreement provided with the Software.
  *
- * Copyright (C) 2005 Universitaet Karlsruhe
- * Released under the GPL
+ * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+ * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE.
  */
-#ifndef _BEUSES_H
-#define _BEUSES_H
 
-#include "bearch.h"
+/**
+ * @file
+ * @brief       Methods to compute when a value will be used again.
+ * @author      Sebastian Hack, Matthias Braun
+ * @date        27.06.2005
+ * @version     $Id$
+ */
+#ifndef FIRM_BE_BEUSES_H
+#define FIRM_BE_BEUSES_H
+
+#include "firm_types.h"
 #include "belive.h"
 
 typedef struct _be_next_use_t {
-	unsigned time;
-	int outermost_loop;
+	unsigned       time;
+	int            outermost_loop;
+	const ir_node *before;
 } be_next_use_t;
 
-#define USES_INFINITY                 10000000
+#define USES_INFINITY  10000000
+#define USES_PENDING   9999999
 
 static INLINE int USES_IS_INFINITE(unsigned time)
 {
 	return time >= USES_INFINITY;
 }
 
+static INLINE int USES_IS_PENDING(unsigned time)
+{
+	return time == USES_PENDING;
+}
+
 typedef struct _be_uses_t be_uses_t;
 
 be_next_use_t be_get_next_use(be_uses_t *uses, ir_node *from,
@@ -36,4 +59,4 @@ be_uses_t *be_begin_uses(ir_graph *irg, const be_lv_t *lv);
 
 void be_end_uses(be_uses_t *uses);
 
-#endif /* _BEUSES_H */
+#endif /* FIRM_BE_BEUSES_H */