1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
|
#include "lisc.h"
char debug['Z'+1] = {
['S'] = 0, /* spiller */
['R'] = 0, /* reg. allocator */
};
void
dumpts(Bits *b, Tmp *tmp, FILE *f)
{
int t;
fprintf(f, "[");
for (t=0; t<BITS*NBit; t++)
if (BGET(*b, t))
fprintf(f, " %s", tmp[t].name);
fprintf(f, " ]\n");
}
int
main(int ac, char *av[])
{
int opt, pr;
Fn *fn;
fn = parse(stdin);
pr = 1;
opt = 0;
if (ac > 1 && av[1][0] == '-')
opt = av[1][1];
switch (opt) {
case 'f': {
int t, ntmp;
fprintf(stderr, "[Testing SSA Reconstruction:");
fillpreds(fn);
for (ntmp=fn->ntmp, t=0; t<ntmp; t++) {
fprintf(stderr, " %s", fn->tmp[t].name);
ssafix(fn, t);
}
fprintf(stderr, "]\n");
break;
}
case 'r': {
int n;
fprintf(stderr, "[Testing RPO]\n");
RPODump:
fillrpo(fn);
assert(fn->rpo[0] == fn->start);
for (n=0;; n++)
if (n == fn->nblk-1) {
fn->rpo[n]->link = 0;
break;
} else
fn->rpo[n]->link = fn->rpo[n+1];
break;
}
case 'l': {
Blk *b;
fprintf(stderr, "[Testing Liveness]\n");
fillrpo(fn);
filllive(fn);
for (b=fn->start; b; b=b->link) {
printf("> Block %s\n", b->name);
printf("\t in: ");
dumpts(&b->in, fn->tmp, stdout);
printf("\tout: ");
dumpts(&b->out, fn->tmp, stdout);
printf("\tnlive: %d\n", b->nlive);
}
pr = 0;
break;
}
case 'i': {
fprintf(stderr, "[Testing Instruction Selection]\n");
isel(fn);
break;
}
case 's': {
Blk *b;
fprintf(stderr, "[Testing Spilling]\n");
debug['S'] = 1;
isel(fn);
fillrpo(fn);
fillpreds(fn);
filllive(fn);
fillcost(fn);
spill(fn);
printf("> Block information:\n");
for (b=fn->start; b; b=b->link) {
printf("\t%-10s (% 5d) ",
b->name, b->loop);
dumpts(&b->out, fn->tmp, stdout);
}
printf("\n");
break;
}
case 'a': {
fprintf(stderr, "[Testing Register Allocation]\n");
debug['R'] = 1;
isel(fn);
fillrpo(fn);
fillpreds(fn);
filllive(fn);
fillcost(fn);
spill(fn);
rega(fn);
goto RPODump;
}
case 'e': {
int n;
fprintf(stderr, "[Testing Code Emission]\n");
isel(fn);
fillrpo(fn);
fillpreds(fn);
filllive(fn);
fillcost(fn);
spill(fn);
rega(fn);
fillrpo(fn);
assert(fn->rpo[0] == fn->start);
for (n=0;; n++)
if (n == fn->nblk-1) {
fn->rpo[n]->link = 0;
break;
} else
fn->rpo[n]->link = fn->rpo[n+1];
emitfn(fn, stdout);
pr = 0;
break;
}
default:
break;
}
if (pr)
printfn(fn, stdout);
exit(0);
}
|
