| 1 |
gbeauche |
1.1 |
/* |
| 2 |
|
|
* basic-blockinfo.hpp - PowerPC basic block information |
| 3 |
|
|
* |
| 4 |
|
|
* Kheperix (C) 2003 Gwenole Beauchesne |
| 5 |
|
|
* |
| 6 |
|
|
* This program is free software; you can redistribute it and/or modify |
| 7 |
|
|
* it under the terms of the GNU General Public License as published by |
| 8 |
|
|
* the Free Software Foundation; either version 2 of the License, or |
| 9 |
|
|
* (at your option) any later version. |
| 10 |
|
|
* |
| 11 |
|
|
* This program is distributed in the hope that it will be useful, |
| 12 |
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 |
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 |
|
|
* GNU General Public License for more details. |
| 15 |
|
|
* |
| 16 |
|
|
* You should have received a copy of the GNU General Public License |
| 17 |
|
|
* along with this program; if not, write to the Free Software |
| 18 |
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 |
|
|
*/ |
| 20 |
|
|
|
| 21 |
|
|
#ifndef BASIC_BLOCKINFO_H |
| 22 |
|
|
#define BASIC_BLOCKINFO_H |
| 23 |
|
|
|
| 24 |
|
|
struct basic_block_info |
| 25 |
|
|
{ |
| 26 |
|
|
typedef basic_block_info block_info; |
| 27 |
|
|
static const int MAX_TARGETS = 2; |
| 28 |
|
|
|
| 29 |
|
|
struct dependency |
| 30 |
|
|
{ |
| 31 |
|
|
block_info * source; |
| 32 |
|
|
block_info * target; |
| 33 |
|
|
dependency * next; |
| 34 |
|
|
dependency ** prev_p; |
| 35 |
|
|
}; |
| 36 |
|
|
|
| 37 |
|
|
uintptr pc; |
| 38 |
gbeauche |
1.2 |
uintptr end_pc; |
| 39 |
gbeauche |
1.1 |
int32 count; |
| 40 |
|
|
uint32 size; |
| 41 |
|
|
uint32 c1; |
| 42 |
|
|
uint32 c2; |
| 43 |
|
|
|
| 44 |
|
|
// List of blocks we depend on |
| 45 |
|
|
dependency dep[MAX_TARGETS]; |
| 46 |
|
|
|
| 47 |
|
|
// List of blocks that depends on this block |
| 48 |
|
|
dependency * deplist; |
| 49 |
|
|
|
| 50 |
|
|
void init(uintptr start_pc); |
| 51 |
|
|
void remove_dep(dependency *d); |
| 52 |
|
|
void remove_deps(); |
| 53 |
|
|
void create_jmpdep(block_info *tbi, int i); |
| 54 |
|
|
void maybe_create_jmpdep(block_info *tbi); |
| 55 |
gbeauche |
1.3 |
bool intersect(uintptr start, uintptr end); |
| 56 |
gbeauche |
1.1 |
}; |
| 57 |
|
|
|
| 58 |
|
|
inline void |
| 59 |
|
|
basic_block_info::init(uintptr start_pc) |
| 60 |
|
|
{ |
| 61 |
|
|
pc = start_pc; |
| 62 |
|
|
deplist = NULL; |
| 63 |
|
|
for (int i = 0; i < MAX_TARGETS; i++) { |
| 64 |
|
|
dep[i].source = NULL; |
| 65 |
|
|
dep[i].target = NULL; |
| 66 |
|
|
dep[i].next = NULL; |
| 67 |
|
|
dep[i].prev_p = NULL; |
| 68 |
|
|
} |
| 69 |
|
|
} |
| 70 |
|
|
|
| 71 |
|
|
inline void |
| 72 |
|
|
basic_block_info::remove_dep(dependency *d) |
| 73 |
|
|
{ |
| 74 |
|
|
if (d->prev_p) |
| 75 |
|
|
*(d->prev_p) = d->next; |
| 76 |
|
|
if (d->next) |
| 77 |
|
|
d->next->prev_p = d->prev_p; |
| 78 |
|
|
d->prev_p = NULL; |
| 79 |
|
|
d->next = NULL; |
| 80 |
|
|
} |
| 81 |
|
|
|
| 82 |
|
|
inline void |
| 83 |
|
|
basic_block_info::remove_deps() |
| 84 |
|
|
{ |
| 85 |
|
|
for (int i = 0; i < MAX_TARGETS; i++) |
| 86 |
|
|
remove_dep(&dep[i]); |
| 87 |
|
|
} |
| 88 |
|
|
|
| 89 |
|
|
inline void |
| 90 |
|
|
basic_block_info::create_jmpdep(block_info *tbi, int i) |
| 91 |
|
|
{ |
| 92 |
|
|
dep[i].source = this; |
| 93 |
|
|
dep[i].target = tbi; |
| 94 |
|
|
dep[i].next = tbi->deplist; |
| 95 |
|
|
if (dep[i].next) |
| 96 |
|
|
dep[i].next->prev_p = &(dep[i].next); |
| 97 |
|
|
dep[i].prev_p = &(tbi->deplist); |
| 98 |
|
|
tbi->deplist = &(dep[i]); |
| 99 |
|
|
} |
| 100 |
|
|
|
| 101 |
|
|
inline void |
| 102 |
|
|
basic_block_info::maybe_create_jmpdep(block_info *tbi) |
| 103 |
|
|
{ |
| 104 |
|
|
for (int i = 0; i < MAX_TARGETS && dep[i].target != tbi; i++) { |
| 105 |
|
|
if (dep[i].source == NULL) { |
| 106 |
|
|
create_jmpdep(tbi, i); |
| 107 |
|
|
break; |
| 108 |
|
|
} |
| 109 |
|
|
} |
| 110 |
gbeauche |
1.3 |
} |
| 111 |
|
|
|
| 112 |
|
|
inline bool |
| 113 |
|
|
basic_block_info::intersect(uintptr start, uintptr end) |
| 114 |
|
|
{ |
| 115 |
|
|
return (pc >= start && pc < end) || (end_pc >= start && end_pc < end); |
| 116 |
gbeauche |
1.1 |
} |
| 117 |
|
|
|
| 118 |
|
|
#endif /* BASIC_BLOCKINFO_H */ |
