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 Backend irg - a ir_graph with additional analysis information.
23 * @author Matthias Braun
33 be_lv_t *be_assure_liveness(be_irg_t *birg)
38 return birg->lv = be_liveness(birg->irg);
41 void be_assure_dom_front(be_irg_t *birg)
43 if (birg->dom_front != NULL)
46 birg->dom_front = be_compute_dominance_frontiers(birg->irg);
49 void be_invalidate_dom_front(be_irg_t *birg)
51 if (birg->dom_front == NULL)
54 be_free_dominance_frontiers(birg->dom_front);
55 birg->dom_front = NULL;
58 void be_free_birg(be_irg_t *birg)
60 free_execfreq(birg->exec_freq);
61 birg->exec_freq = NULL;
63 if (birg->dom_front != NULL) {
64 be_free_dominance_frontiers(birg->dom_front);
65 birg->dom_front = NULL;
67 if (birg->lv != NULL) {
68 be_liveness_free(birg->lv);
73 ir_graph *(be_get_birg_irg)(const be_irg_t *birg)
75 return _be_get_birg_irg(birg);
78 ir_exec_freq *(be_get_birg_exec_freq)(const be_irg_t *birg)
80 return _be_get_birg_exec_freq(birg);
83 be_lv_t *(be_get_birg_liveness)(const be_irg_t *birg)
85 return _be_get_birg_liveness(birg);
88 be_dom_front_info_t *(be_get_birg_dom_front)(const be_irg_t *birg)
90 return _be_get_birg_dom_front(birg);
93 const arch_env_t *(be_get_birg_arch_env)(const be_irg_t *birg)
95 return _be_get_birg_arch_env(birg);