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 void be_assure_liveness_chk(be_irg_t *birg)
36 if (birg->lv_chk != NULL)
39 birg->lv_chk = lv_chk_new(birg->irg);
42 void be_assure_liveness(be_irg_t *birg)
47 birg->lv = be_liveness(birg->irg);
50 void be_invalidate_liveness(be_irg_t *birg)
55 be_liveness_free(birg->lv);
59 void be_assure_dom_front(be_irg_t *birg)
61 if (birg->dom_front != NULL)
64 birg->dom_front = be_compute_dominance_frontiers(birg->irg);
67 void be_invalidate_dom_front(be_irg_t *birg)
69 if (birg->dom_front == NULL)
72 be_free_dominance_frontiers(birg->dom_front);
73 birg->dom_front = NULL;
76 void be_free_birg(be_irg_t *birg)
78 free_execfreq(birg->exec_freq);
79 birg->exec_freq = NULL;
81 if (birg->dom_front != NULL) {
82 be_free_dominance_frontiers(birg->dom_front);
83 birg->dom_front = NULL;
85 if (birg->lv != NULL) {
86 be_liveness_free(birg->lv);
91 ir_graph *(be_get_birg_irg)(const be_irg_t *birg)
93 return _be_get_birg_irg(birg);
96 ir_exec_freq *(be_get_birg_exec_freq)(const be_irg_t *birg)
98 return _be_get_birg_exec_freq(birg);
101 be_lv_t *(be_get_birg_liveness)(const be_irg_t *birg)
103 return _be_get_birg_liveness(birg);
106 lv_chk_t *(be_get_birg_liveness_chk)(const be_irg_t *birg)
108 return _be_get_birg_liveness_chk(birg);
111 be_dom_front_info_t *(be_get_birg_dom_front)(const be_irg_t *birg)
113 return _be_get_birg_dom_front(birg);
116 const arch_env_t *(be_get_birg_arch_env)(const be_irg_t *birg)
118 return _be_get_birg_arch_env(birg);