+/*
+ * Copyright (C) 1995-2007 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.
+ */
+
/**
* @file
* @author Matthias Braun
* @brief A nodeset. This should be prefered over a simple pset, because it
* tries to guarantee deterministic behavior. (and is faster)
* @version $Id$
+ * @note Actually the bits to make the behaviour deterministic are not
+ * implemented yet...
*/
#ifndef _FIRM_IRNODESET_H_
#define _FIRM_IRNODESET_H_
-#include "irnode.h"
+#include "firm_config.h"
+
+#include "firm_types.h"
+#include "xmalloc.h"
+
+/*
+ * sebastian experimental:
+ * use ordered arrays as node sets.
+ * the guys here have made good experiences with that.
+ * Internally we use normal Firm arrays and binary
+ * search for locating the elements. Using arrays should
+ * give the sets a small footprint.
+ */
+#undef IR_NODESET_USE_ORDERED_SETS
#define HashSet ir_nodeset_t
#define HashSetIterator ir_nodeset_iterator_t
#define ValueType ir_node*
#define DO_REHASH
+
#include "hashset.h"
+
#undef DO_REHASH
#undef ValueType
#undef HashSetIterator
#undef HashSet
+typedef struct ir_nodeset_t ir_nodeset_t;
+typedef struct ir_nodeset_iterator_t ir_nodeset_iterator_t;
+
/**
- * Initializes a nodeset
+ * Initializes a nodeset with default size.
*
* @param nodeset Pointer to allocated space for the nodeset
*/
* Initializes a nodeset
*
* @param nodeset Pointer to allocated space for the nodeset
- * @param expected_elements Number of elements expected in the nodeset (rougly)
+ * @param expected_elements Number of elements expected in the nodeset (roughly)
*/
void ir_nodeset_init_size(ir_nodeset_t *nodeset, size_t expected_elements);
*/
void ir_nodeset_destroy(ir_nodeset_t *nodeset);
+/**
+ * Allocates memory for a nodeset and initializes the set.
+ *
+ * @param expected_elements Number of elements expected in the nodeset (roughly)
+ * @return The initialized nodeset
+ */
+static INLINE ir_nodeset_t *ir_nodeset_new(size_t expected_elements) {
+ ir_nodeset_t *res = xmalloc(sizeof(*res));
+ ir_nodeset_init_size(res, expected_elements);
+ return res;
+}
+
+/**
+ * Destroys a nodeset and frees the memory of the nodeset itself.
+ */
+static INLINE void ir_nodeset_del(ir_nodeset_t *nodeset) {
+ ir_nodeset_destroy(nodeset);
+ xfree(nodeset);
+}
+
/**
* Inserts a node into a nodeset.
*
*/
int ir_nodeset_insert(ir_nodeset_t *nodeset, ir_node *node);
+
/**
* Removes a node from a nodeset. Does nothing if the nodeset doesn't contain
* the node.