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 Internal headers for liveness analysis.
23 * @author Sebastian Hack
27 #ifndef FIRM_BE_BELIVE_T_H
28 #define FIRM_BE_BELIVE_T_H
30 #include "irgraph_t.h"
31 #include "irphase_t.h"
43 #include "irlivechk.h"
52 const struct be_irg_t *birg;
54 hook_entry_t hook_info;
60 struct _be_lv_info_node_t {
65 struct _be_lv_info_head_t {
70 struct _be_lv_info_t {
72 struct _be_lv_info_head_t head;
73 struct _be_lv_info_node_t node;
77 static INLINE int _be_lv_next_irn(const struct _be_lv_t *lv, const ir_node *bl, unsigned flags, int i)
79 struct _be_lv_info_t *arr = phase_get_irn_data(&lv->ph, bl);
82 int n_members = (int) arr[0].u.head.n_members;
84 while(i < n_members) {
85 if(arr[i + 1].u.node.flags & flags) {
95 static INLINE ir_node *_be_lv_get_irn(const struct _be_lv_t *lv, const ir_node *bl, int i)
97 struct _be_lv_info_t *arr = phase_get_irn_data(&lv->ph, bl);
98 return get_idx_irn(lv->irg, arr[i + 1].u.node.idx);
101 struct _be_lv_info_node_t *be_lv_get(const struct _be_lv_t *li, const ir_node *bl, const ir_node *irn);
103 static INLINE int _be_is_live_xxx(const struct _be_lv_t *li, const ir_node *block, const ir_node *irn, unsigned flags)
106 struct _be_lv_info_node_t *info = be_lv_get(li, block, irn);
107 return info ? (info->flags & flags) != 0 : 0;
112 return (lv_chk_bl_xxx(li->lvc, block, irn) & flags) != 0;
114 assert(li->nodes && "node sets must be computed");
116 #endif /* USE_LIVE_CHK */
119 #define be_lv_foreach(lv, bl, flags, i) \
120 for (i = _be_lv_next_irn(lv, bl, flags, 0); i >= 0; i = _be_lv_next_irn(lv, bl, flags, i + 1))
123 static INLINE pset *_be_lv_pset_put(const struct _be_lv_t *lv, const ir_node *block, int state, pset *s)
126 be_lv_foreach(lv, block, state, i)
127 pset_insert_ptr(s, _be_lv_get_irn(lv, block, i));
131 #define be_lv_get_irn(lv, bl, i) _be_lv_get_irn(lv, bl, i)
132 #define be_lv_pset_put_in(lv, bl, s) _be_lv_pset_put(lv, bl, be_lv_state_in, s)
133 #define be_lv_pset_put_out(lv, bl, s) _be_lv_pset_put(lv, bl, be_lv_state_out, s)
134 #define be_lv_pset_put_end(lv, bl, s) _be_lv_pset_put(lv, bl, be_lv_state_end, s)
136 #define be_is_live_in(lv, bl, irn) _be_is_live_xxx(lv, bl, irn, be_lv_state_in)
137 #define be_is_live_end(lv, bl, irn) _be_is_live_xxx(lv, bl, irn, be_lv_state_end)
138 #define be_is_live_out(lv, bl, irn) _be_is_live_xxx(lv, bl, irn, be_lv_state_out)
140 #define be_lv_has_info_about(lv, irn) bitset_is_set((lv)->nodes, get_irn_idx(irn))
142 #endif /* FIRM_BE_BELIVE_T_H */