X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fana%2Firbackedge_t.h;h=4aee093263fe922cad7293133ff47648ae7e03aa;hb=229528cc3e74e956082afb64791e46ec5ed49f20;hp=4f3d9188f1a3f5bf01edb4e98586e969cb07de8a;hpb=45fa79efe8fc4f4a887f7f5243bed08597cc0865;p=libfirm

diff --git a/ir/ana/irbackedge_t.h b/ir/ana/irbackedge_t.h
index 4f3d9188f..4aee09326 100644
--- a/ir/ana/irbackedge_t.h
+++ b/ir/ana/irbackedge_t.h
@@ -1,27 +1,33 @@
+/*
+ * Project:     libFIRM
+ * File name:   ir/ana/irbackedge_t.h
+ * Purpose:     Access function for backedges -- private header.
+ * Author:      Goetz Lindenmaier
+ * Modified by:
+ * Created:     7.2002
+ * CVS-ID:      $Id$
+ * Copyright:   (c) 2002-2003 Universität Karlsruhe
+ * Licence:     This file protected by GPL -  GNU GENERAL PUBLIC LICENSE.
+ */
+
 #ifndef _IRBACKEDGE_T_H_
 #define _IRBACKEDGE_T_H_
 
-# include "string.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.
+ */
+int *new_backedge_arr(struct obstack *obst, int size);
 
-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;
+/**
+ * allocate new backedge info for nodes.
+ */
+void new_backedge_info(ir_node *n);
 
-  if (ARR_LEN(arr) != ARR_LEN(get_irn_in(n))-1)
-    *arr = new_backedge_arr(obst, ARR_LEN(get_irn_in(n))-1);
-}
+/**
+ * Adapts backedges array to new size.
+ * Must be called if in array of irnode is changed.  Else
+ * Segmentation faults might occur.
+ */
+void fix_backedges(struct obstack *obst, ir_node *n);
 
 #endif /* _IRBACKEDGE_T_H_ */