X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbelower.h;h=daf56e8c192024bb7fb02d4bb9feb19323513764;hb=b2008e0b7c77ead1540a4793d235fafb6fcff873;hp=d169caa201bc5061fe02580c66b78456e0f5476c;hpb=c0acb5cc9a2967e31e2b2961a98831d674cea3b8;p=libfirm diff --git a/ir/be/belower.h b/ir/be/belower.h index d169caa20..daf56e8c1 100644 --- a/ir/be/belower.h +++ b/ir/be/belower.h @@ -1,15 +1,48 @@ +/* + * 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. + */ + /** - * Chordal register allocation. - * @author Christian Wuerdig - * @date 2005/12/14 - * @cvsid $Id$ + * @file + * @brief Performs lowering of perm nodes. Inserts copies to assure + * register constraints. + * @author Christian Wuerdig + * @date 14.12.2005 */ -#ifndef _BELOWER_H_ -#define _BELOWER_H_ +#ifndef FIRM_BE_BELOWER_H +#define FIRM_BE_BELOWER_H #include "beirg.h" -void assure_constraints(be_irg_t *birg); -void lower_nodes_after_ra(be_irg_t *birg, int do_copy); +/** + * Walks over all nodes to assure register constraints. + * + * @param irg The graph + */ +void assure_constraints(ir_graph *irg); + +/** + * Walks over all blocks in an irg and performs lowering need to be + * done after register allocation (e.g. perm lowering). + * + * @param irg The graph + * @param do_copy 1 == resolve cycles with a free reg if available + */ +void lower_nodes_after_ra(ir_graph *irg, int do_copy); -#endif /* _BELOWER_H_ */ +#endif