blob: 22d1e76f8ebc047866712103e603119768c2898f (
plain)
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
|
#include "gen_code.h"
#include "pc.h"
int gen_label(t)
ptree *t;
{
int tmp;
if (!(t->l && t->r))
return 0;
if (t->l) {
tmp = gen_label(t->l);
t->l->label = (!tmp ? 1 : tmp);
} else
yyerror("GEN_LABEL: left child NULL, shouldn't happen!\n");
if (t->r)
t->r->label = gen_label(t->r);
else
t->r->label = 0;
if (t->r->label == t->l->label) {
return 1 + t->l->label;
} else {
return t->r->label > t->l->label ? t->r->label : t->l->label;
}
}
void gen_expr(t)
ptree *t;
{
}
void gen_code(t, name)
ptree *t;
{
/*Test gen_label*/
if (t->type == ASSIGNOP){
gen_label(t->r);
print_tree(t->r);
}
}
|
