X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fana%2Firbackedge_t.h;h=808fdfc919856314da050c43cb6434771268c86d;hb=6f068af98daa4725d60e5d23a8f98ec2841cfa44;hp=4f3d9188f1a3f5bf01edb4e98586e969cb07de8a;hpb=45fa79efe8fc4f4a887f7f5243bed08597cc0865;p=libfirm

diff --git a/ir/ana/irbackedge_t.h b/ir/ana/irbackedge_t.h
index 4f3d9188f..808fdfc91 100644
--- a/ir/ana/irbackedge_t.h
+++ b/ir/ana/irbackedge_t.h
@@ -1,27 +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);
 
-static INLINE void fix_backedges(struct obstack *obst, ir_node *n) {
-  opcode opc = get_irn_opcode(n);
-  int ** arr = NULL;
-  if (opc == iro_Phi)    arr = &n->attr.phi_backedge;
-  if ((opc == iro_Block) && !interprocedural_view)
-                         arr = &n->attr.block.backedge;
-  if ((opc == iro_Block) && interprocedural_view)
-                         arr = &n->attr.block.cg_backedge;
-  if (opc == iro_Filter) arr = &n->attr.filter.backedge;
-
-  if (ARR_LEN(arr) != ARR_LEN(get_irn_in(n))-1)
-    *arr = new_backedge_arr(obst, ARR_LEN(get_irn_in(n))-1);
-}
-
-#endif /* _IRBACKEDGE_T_H_ */
+#endif