2 * Copyright (C) 1995-2007 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
34 be_lv_t *be_assure_liveness(be_irg_t *birg)
39 return birg->lv = be_liveness(birg->irg);
42 void be_assure_dom_front(be_irg_t *birg)
44 if (birg->dom_front != NULL)
47 birg->dom_front = be_compute_dominance_frontiers(birg->irg);
50 void be_invalidate_dom_front(be_irg_t *birg)
52 if (birg->dom_front == NULL)
55 be_free_dominance_frontiers(birg->dom_front);
56 birg->dom_front = NULL;
59 void be_free_birg(be_irg_t *birg)
61 free_execfreq(birg->exec_freq);
62 birg->exec_freq = NULL;
64 if (birg->dom_front != NULL) {
65 be_free_dominance_frontiers(birg->dom_front);
66 birg->dom_front = NULL;
68 if (birg->lv != NULL) {
69 be_liveness_free(birg->lv);
74 ir_graph *(be_get_birg_irg)(const be_irg_t *birg)
76 return _be_get_birg_irg(birg);
79 ir_exec_freq *(be_get_birg_exec_freq)(const be_irg_t *birg)
81 return _be_get_birg_exec_freq(birg);
84 be_lv_t *(be_get_birg_liveness)(const be_irg_t *birg)
86 return _be_get_birg_liveness(birg);
89 be_dom_front_info_t *(be_get_birg_dom_front)(const be_irg_t *birg)
91 return _be_get_birg_dom_front(birg);
94 const arch_env_t *(be_get_birg_arch_env)(const be_irg_t *birg)
96 return _be_get_birg_arch_env(birg);