+/*
+ * 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.
* @date 3.2.2005
*/
-#ifndef _FIRM_EDGES_H
-#define _FIRM_EDGES_H
+#ifndef _FIRM_IR_EDGES_H
+#define _FIRM_IR_EDGES_H
-#include "irnode.h"
+#include "firm_types.h"
+#include "iredgekinds.h"
#ifndef _IR_EDGE_TYPEDEF_
#define _IR_EDGE_TYPEDEF_
typedef struct _ir_edge_t ir_edge_t;
#endif
+#if 0
+#ifndef _IR_EDGE_KIND_TYPEDEF_
+#define _IR_EDGE_KIND_TYPEDEF_
+typedef enum _ir_edge_kind_t ir_edge_kind_t;
+#endif /* _IR_EDGE_KIND_TYPEDEF_ */
+#endif
+
/**
* Get the first edge pointing to some node.
* @note There is no order on out edges. First in this context only
* means, that you get some starting point into the list of edges.
* @param irn The node.
+ * @param kind The kind of the edge.
* @return The first out edge that points to this node.
*/
-const ir_edge_t *get_irn_out_edge_first(const ir_node *irn);
+const ir_edge_t *get_irn_out_edge_first_kind(const ir_node *irn, ir_edge_kind_t kind);
/**
* Get the next edge in the out list of some node.
* @param last The last out edge you have seen.
* @return The next out edge in @p irn 's out list after @p last.
*/
-const ir_edge_t *get_irn_out_edge_next(const ir_node *irn,
- const ir_edge_t *last);
+const ir_edge_t *get_irn_out_edge_next(const ir_node *irn, const ir_edge_t *last);
/**
* 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 kind The edge's kind.
+ * @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))
+#define foreach_out_edge_kind(irn, edge, kind) \
+ for(edge = get_irn_out_edge_first_kind(irn, kind); 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_kind_safe(irn, edge, ne, kind) \
+ for((edge) = (get_irn_out_edge_first_kind(irn, kind)), (ne) = ((edge) ? (get_irn_out_edge_next(irn, edge)) : NULL); \
+ edge; (edge) = (ne), (ne) = ((edge) ? (get_irn_out_edge_next(irn, edge)) : NULL))
+
+/**
+ * Convenience macro for normal out edges.
+ */
+#define foreach_out_edge(irn, edge) foreach_out_edge_kind(irn, edge, EDGE_KIND_NORMAL)
+
+/**
+ * Convenience macro for normal out edges.
+ */
+#define foreach_out_edge_safe(irn, edge, tmp) foreach_out_edge_kind_safe(irn, edge, tmp, EDGE_KIND_NORMAL)
+
+/**
+ * A convenience iteration macro for all control flow edges.
+ */
+#define foreach_block_succ(bl, edge) foreach_out_edge_kind(bl, edge, EDGE_KIND_BLOCK)
/*
* Get the source node of an edge.
*/
ir_node *get_edge_src_irn(const ir_edge_t *edge);
+/**
+ * Get the number of edges pointing to a node.
+ * @param irn The node.
+ * @return The number of edges pointing to this node.
+ */
+int get_irn_n_edges(const ir_node *irn);
+
/**
* Get the position of an edge.
- * @param edge.
+ * @param edge The edge.
* @return The position in the in array of that edges source.
*/
extern int get_edge_src_pos(const ir_edge_t *edge);
-extern int edges_activated(const ir_graph *irg);
+/**
+ * Get the edge object of an outgoing edge at a node.
+ * @param irg The graph, the node is in.
+ * @param irn The node at which the edge originates.
+ * @param pos The position of the edge.
+ * @return The corresponding edge object or NULL,
+ * if no such edge exists.
+ */
+const ir_edge_t *get_irn_edge_kind(ir_graph *irg, const ir_node *irn, int pos, ir_edge_kind_t kind);
+/**
+ * Get the number of registered out edges for a specific kind.
+ * @param irn The node.
+ * @param kind The kind.
+ */
+extern int get_irn_n_edges_kind(const ir_node *irn, ir_edge_kind_t kind);
+
+
+/**
+ * Check, if the out edges are activated.
+ * @param irg The graph.
+ * @param kind The edge kind.
+ * @return 1, if the edges are present for the given irg, 0 if not.
+ */
+extern int edges_activated_kind(const ir_graph *irg, ir_edge_kind_t kind);
+
+/**
+ * Activate the edges for an irg.
+ * @param irg The graph to activate the edges for.
+ * @param kind The edge kind.
+ */
+extern void edges_activate_kind(ir_graph *irg, ir_edge_kind_t kind);
+
+/**
+ * Deactivate the edges for an irg.
+ * @param irg The graph.
+ * @param kind The edge kind.
+ */
+extern void edges_deactivate_kind(ir_graph *irg, ir_edge_kind_t kind);
+
+extern void edges_reroute_kind(ir_node *old, ir_node *nw, ir_edge_kind_t kind, ir_graph *irg);
+
+/**
+ * Verifies the out edges of graph @p irg.
+ * @return 1 if a problem was found, 0 otherwise
+ */
+int edges_verify(ir_graph *irg);
+
+/************************************************************************/
+/* Begin Old Interface */
+/************************************************************************/
+
+#define edges_reroute(old, nw, irg) edges_reroute_kind(old, nw, EDGE_KIND_NORMAL, irg)
+#define edges_activated(irg) (edges_activated_kind(irg, EDGE_KIND_NORMAL) && edges_activated_kind(irg, EDGE_KIND_BLOCK))
+
+#ifndef get_irn_n_edges
+#define get_irn_n_edges(irn) get_irn_n_edges_kind(irn, EDGE_KIND_NORMAL)
+#endif
+
+#ifndef get_irn_out_edge_first
+#define get_irn_out_edge_first(irn) get_irn_out_edge_first_kind(irn, EDGE_KIND_NORMAL)
+#endif
+
+#ifndef get_block_succ_first
+#define get_block_succ_first(irn) get_irn_out_edge_first_kind(irn, EDGE_KIND_BLOCK)
+#endif
+
+#ifndef get_block_succ_next
+#define get_block_succ_next(irn, last) get_irn_out_edge_next(irn, last)
+#endif
+
+/**
+* Activate all the edges for an irg.
+* @param irg The graph to activate the edges for.
+*/
extern void edges_activate(ir_graph *irg);
+/**
+* Deactivate all the edges for an irg.
+* @param irg The graph.
+*/
extern void edges_deactivate(ir_graph *irg);
+extern int edges_assure(ir_graph *irg);
+
+extern void edges_node_deleted(ir_node *irn, ir_graph *irg);
+
+/**
+* Notify normal and block edges.
+*/
+extern void edges_notify_edge(ir_node *src, int pos, ir_node *tgt, ir_node *old_tgt, ir_graph *irg);
+
+/************************************************************************/
+/* End Old Interface */
+/************************************************************************/
+
-#endif /* _FIRM_EDGES_H */
+#endif /* _FIRM_IR_EDGES_H */
projects / libfirm / blobdiff