Let the emitter generator generate fewer calls.

[libfirm] / ir / ir / irnodeset.h

diff --git a/ir/ir/irnodeset.h b/ir/ir/irnodeset.h
index e20e99d..330caa6 100644 (file)
--- a/ir/ir/irnodeset.h
+++ b/ir/ir/irnodeset.h
@@ -1,3 +1,22 @@
+/*
+ * Copyright (C) 1995-2008 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
@@ -5,24 +24,42 @@
  * @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_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
  */
@@ -32,7 +69,7 @@ void ir_nodeset_init(ir_nodeset_t *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);
 
@@ -44,6 +81,26 @@ 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(ir_nodeset_t);
+       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.
  *
@@ -54,6 +111,7 @@ void ir_nodeset_destroy(ir_nodeset_t *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.