2 * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
4 * This file is part of libFirm.
6 * This file may be distributed and/or modified under the terms of the
7 * GNU General Public License version 2 as published by the Free Software
8 * Foundation and appearing in the file LICENSE.GPL included in the
9 * packaging of this file.
11 * Licensees holding valid libFirm Professional Edition licenses may use
12 * this file in accordance with the libFirm Commercial License.
13 * Agreement provided with the Software.
15 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
16 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * @brief be transform helper extracted from the ia32 backend.
23 * @author Matthias Braun, Michael Beck
27 #ifndef FIRM_BE_BETRANSHLP_H
28 #define FIRM_BE_BETRANSHLP_H
30 #include "firm_types.h"
34 * A callback to pre-transform some nodes before the transformation starts.
36 typedef void (arch_pretrans_nodes)(void *arch_cg);
39 * The type of a transform function.
41 typedef ir_node *(be_transform_func)(ir_node *node);
43 /** pre-transform a node */
44 ir_node *be_pre_transform_node(ir_node *place);
47 * Calls transformation function for given node and marks it visited.
49 ir_node *be_transform_node(ir_node *node);
52 * returns an anchor from the graph before the transformation
54 ir_node *be_get_old_anchor(int anchor);
57 * Duplicate all dependency edges of a node.
59 void be_duplicate_deps(ir_node *old_node, ir_node *new_node);
62 * Duplicate a node during transformation.
64 ir_node *be_duplicate_node(ir_node *node);
67 * Associate an old node with a transformed node. Uses link field.
69 void be_set_transformed_node(ir_node *old_node, ir_node *new_node);
72 * returns 1 if the node is already transformed
74 int be_is_transformed(const ir_node *node);
77 * enqueue all inputs into the transform queue.
79 void be_enqueue_preds(ir_node *node);
82 * Transform a graph. Transformers must be registered first.
84 void be_transform_graph(be_irg_t *birg, arch_pretrans_nodes *func, void *cg_env);
86 #endif /* FIRM_BE_BETRANSHLP_H */