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
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
#include "warn.h"
#include "cgen.h"
#include "dbg.h"
#include "fn.h"
#include "parse.h"
#include "prv.h"
#include "stmt.h"
#include "storage.h"
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#if 0
static int finalize(const struct lex *l, const struct prv *p,
const struct print *pr)
{
const struct ast *ast = p->ast;
struct fn *fn = &ast->fns[ast->nfns - 1];
size_t n = fn->nstmts + 1;
struct stmt *stmts = realloc(fn->stmts, n * sizeof *stmts);
if (!stmts)
{
perror("realloc(3)");
return -1;
}
fn->stmts = stmts;
fn->stmts[fn->nstmts++] = (struct stmt)
{
.type = WARN,
.u.warn.p = *pr
};
dbg("\t\tadd warn statement with %zu entries%s\n", pr->nentries,
pr->println ? "" : ", no lf");
return 0;
}
static int cg_val(const struct tk *tk)
{
const char *num = tk->s;
int neg = *num == '-';
unsigned long long uv;
char *end;
fputs("call $printf(l $____fmt", stdout);
errno = 0;
uv = strtoull(num, &end, 16);
if (!neg && !errno && !*end)
printf("lx, ..., l %llu )\n", uv);
else
{
errno = 0;
uv = strtoull(num, &end, 0);
if (neg || errno || *end)
{
long long v = strtoll(num, NULL, 0);
printf("l, ..., l %lld )\n", v);
}
else
printf("l, ..., l %llu )\n", uv);
}
return 0;
}
static int cg_lit(const struct prientry *e)
{
const struct lit *l = e->lit;
const char *tmp;
if (!l)
{
fprintf(stderr, "%s: unexpected null literal\n", __func__);
return -1;
}
printf("%%%s =l loadl $stderr\n", (tmp = cgen_tmp(sizeof (void *))));
printf("call $fputs(l $%s, w %%%s)\n", l->name, tmp);
return 0;
}
static int cg_id(const struct prientry *de, const struct fn *fn)
{
const struct stentry *e = de->entry;
const struct type *t = e->t;
const char *id = e->tk->s;
int global = cgen_global(fn, e);
size_t sz = t->sz;
const char *asz = cgen_sz(sz < 4 ? 4 : sz), *tmp = cgen_tmp(sz);
if (global)
printf("%%%s =%s load%s $%s\n", tmp, asz, cgen_load(t), id);
else
printf("%%%s =%s load%s %%%s_\n", tmp, asz, cgen_load(t), id);
puts("%z =l loadl $stderr");
fputs("call $fprintf(w %z, l $____fmt", stdout);
if (t->type == PTR)
fputs("lx, ..., l ", stdout);
else
printf("%s, ..., %s ", cgen_type(t), asz);
printf("%%%s)\n", tmp);
return 0;
}
int warn_cgen(const struct warn *w, struct cgen *c)
{
const struct print *p = &w->p;
for (size_t i = 0; i < p->nentries; i++)
{
const struct prientry *e = &p->entries[i];
const struct tk *tk = e->tk;
if (tk->type == LIT && cg_lit(e))
return -1;
else if (tk->type == NUM && cg_val(tk))
return -1;
else if (tk->type == ID && e->entry && cg_id(e, c->fn))
return -1;
else if (tk->type == ID && e->lit && cg_lit(e))
return -1;
}
if (p->println)
{
puts("%v =l loadl $stderr");
puts("call $fputc(l 10 , w %v)");
}
return 0;
}
#endif
int warn_cgen(const struct print *pr, struct cgen *c)
{
return print_cgen(pr, c, "stderr");
}
int warn(const struct lex *l, struct prv *p)
{
struct fn *fn = fn_cur(p);
size_t n = fn->nstmts + 1;
struct stmt *stmts = realloc(fn->stmts, n * sizeof *stmts);
if (!stmts)
{
perror("realloc(3)");
return -1;
}
dbg("\t\tadd warn statement\n");
stmts[fn->nstmts++] = (struct stmt){.type = WARN, .u.print = {0}};
fn->stmts = stmts;
return print(l, p);
}
|
