+/*
+ * Project: libFIRM
+ * File name: ir/ir/iredges.h
+ * Purpose: Public header for the automatically updating outs.
+ * Author: Sebastian Hack
+ * Created: 3.2.2005
+ * CVS-ID: $Id$
+ * Copyright: (c) 1998-2005 Universität Karlsruhe
+ * Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE.
+ */
/**
* Public header for the automatically updating outs.
#ifndef _FIRM_EDGES_H
#define _FIRM_EDGES_H
-#include "irnode.h"
+#include "firm_types.h"
#ifndef _IR_EDGE_TYPEDEF_
#define _IR_EDGE_TYPEDEF_
/**
* A convenience iteration macro over all out edges of a node.
- * @param irn The node.
- * @param edge An @c ir_edge_t pointer which shall be set to the current
+ * @param irn The node.
+ * @param edge An ir_edge_t pointer which shall be set to the current
* edge.
*/
#define foreach_out_edge(irn,edge) \
for(edge = get_irn_out_edge_first(irn); edge; edge = get_irn_out_edge_next(irn, edge))
+/**
+ * A convenience iteration macro over all out edges of a node, which is safe
+ * against alteration of the current edge.
+ *
+ * @param irn The node.
+ * @param edge An ir_edge_t pointer which shall be set to the current
+ * edge.
+ * @param ne The next edge, enables alteration safe edge processing.
+ */
+#define foreach_out_edge_safe(irn,edge,ne) \
+ for( \
+ (edge) = (get_irn_out_edge_first(irn)), \
+ (ne) = ((edge) ? (get_irn_out_edge_next(irn, edge)) : NULL); \
+ edge; \
+ (edge) = (ne), (ne) = ((edge) ? (get_irn_out_edge_next(irn, edge)) : NULL) \
+ )
+
+
/**
* A convenience iteration macro for all control flow edges
* leaving a block, and thus are cf successor edges.