tarvals are unique no need to use tarval_cmp for equality checks

[libfirm] / ir / ana / irbackedge_t.h

diff --git a/ir/ana/irbackedge_t.h b/ir/ana/irbackedge_t.h
index cfabf35..808fdfc 100644 (file)
--- a/ir/ana/irbackedge_t.h
+++ b/ir/ana/irbackedge_t.h
@@ -1,13 +1,45 @@
-#ifndef _IRBACKEDGE_T_H_
-#define _IRBACKEDGE_T_H_
+/*
+ * 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.
+ */
 
-# include "string.h"
+/**
+ * @file
+ * @brief     Access function for backedges -- private header.
+ * @author    Goetz Lindenmaier
+ * @date      7.2002
+ * @version   $Id$
+ */
+#ifndef FIRM_ANA_IRBACKEDGE_T_H
+#define FIRM_ANA_IRBACKEDGE_T_H
 
-static INLINE int * new_backedge_arr(struct obstack *obst, int size) {
-  int *res = NEW_ARR_D (int, obst, size);
-  memset(res, 0, sizeof(int) * size);
-  return res;
-}
+/**
+ * Allocate a new backedge array on the obstack for given size.
+ *
+ * @param obst   the obstack to allocate the array on
+ * @param size   the size of the backedge array
+ */
+bitset_t *new_backedge_arr(struct obstack *obst, size_t size);
 
+/**
+ * Adapts backedges array to new size.
+ * Must be called if the in array of an IR node is changed.  Else
+ * Segmentation faults might occur.
+ */
+void fix_backedges(struct obstack *obst, ir_node *n);
 
-#endif /* _IRBACKEDGE_T_H_ */
+#endif