/*
- * 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.
+ * Copyright (C) 2012 University of Karlsruhe.
*/
/**
} cliques_iter_t;
void be_ifg_free(be_ifg_t *ifg);
-int be_ifg_connected(const be_ifg_t *ifg, const ir_node *a,
- const ir_node *b);
ir_node *be_ifg_neighbours_begin(const be_ifg_t *ifg, neighbours_iter_t *iter,
const ir_node *irn);
ir_node *be_ifg_neighbours_next(neighbours_iter_t *iter);
void be_ifg_neighbours_break(neighbours_iter_t *iter);
-ir_node *be_ifg_nodes_begin(const be_ifg_t *ifg, nodes_iter_t *iter);
+nodes_iter_t be_ifg_nodes_begin(be_ifg_t const *ifg);
ir_node *be_ifg_nodes_next(nodes_iter_t *iter);
-void be_ifg_nodes_break(nodes_iter_t *iter);
int be_ifg_cliques_begin(const be_ifg_t *ifg, cliques_iter_t *iter,
ir_node **buf);
int be_ifg_cliques_next(cliques_iter_t *iter);
int be_ifg_degree(const be_ifg_t *ifg, const ir_node *irn);
#define be_ifg_foreach_neighbour(ifg, iter, irn, pos) \
- for(pos = be_ifg_neighbours_begin(ifg, iter, irn); pos != NULL; pos = be_ifg_neighbours_next(iter))
+ for (ir_node *pos = be_ifg_neighbours_begin(ifg, iter, irn); pos; pos = be_ifg_neighbours_next(iter))
-#define be_ifg_foreach_node(ifg, iter, pos) \
- for(pos = be_ifg_nodes_begin(ifg, iter); pos != NULL; pos = be_ifg_nodes_next(iter))
+#define be_ifg_foreach_node(ifg, pos) \
+ for (bool pos##__once = true; pos##__once;) \
+ for (nodes_iter_t pos##__iter = be_ifg_nodes_begin(ifg); pos##__once; pos##__once = false) \
+ for (ir_node *pos; (pos = be_ifg_nodes_next(&pos##__iter));)
#define be_ifg_foreach_clique(ifg, iter, buf, count) \
for(*(count) = be_ifg_cliques_begin(ifg, iter, buf); \