summaryrefslogtreecommitdiff
path: root/gcc/testsuite/gcc.c-torture/execute/pr51466.c
blob: aa0b7fd4fb91cf50c5c7d92ecc841e27535141ce (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
/* PR tree-optimization/51466 */

extern void abort (void);

__attribute__((noinline, noclone)) int
foo (int i)
{
  volatile int v[4];
  int *p;
  v[i] = 6;
  p = (int *) &v[i];
  return *p;
}

__attribute__((noinline, noclone)) int
bar (int i)
{
  volatile int v[4];
  int *p;
  v[i] = 6;
  p = (int *) &v[i];
  *p = 8;
  return v[i];
}

__attribute__((noinline, noclone)) int
baz (int i)
{
  volatile int v[4];
  int *p;
  v[i] = 6;
  p = (int *) &v[0];
  *p = 8;
  return v[i];
}

int
main ()
{
  if (foo (3) != 6 || bar (2) != 8 || baz (0) != 8 || baz (1) != 6)
    abort ();
  return 0;
}