blob: ac24e7a83622d36ab505a2799e9ced0dd52b4327 (
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
|
/* Spurious uninitialized variable warnings. Slight variant on the
documented case, inspired by reg-stack.c:record_asm_reg_life. */
/* { dg-do compile } */
/* { dg-options "-Wuninitialized" } */
/* { dg-require-effective-target alloca } */
struct foo
{
int type;
struct foo *car;
struct foo *cdr;
char *data;
int data2;
};
extern void use(struct foo *);
#define CLOBBER 6
#define PARALLEL 3
void
func(struct foo *list, int count)
{
int n_clobbers = 0;
int i;
struct foo **clob_list; /* { dg-bogus "clob_list" "uninitialized variable warning" } */
if(list[0].type == PARALLEL)
{
clob_list = __builtin_alloca(count * sizeof(struct foo *));
for(i = 1; i < count; i++)
{
if(list[i].type == CLOBBER)
clob_list[n_clobbers++] = &list[i];
}
}
for(i = 0; i < n_clobbers; i++)
use(clob_list[i]);
}
|
