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/* { dg-require-effective-target vect_int } */
 
#include <stdarg.h>
#include "tree-vect.h"
 
#define N 16
 
__attribute__ ((noinline))
int main1 ()
{  
  union {
    unsigned char a[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
    unsigned char b[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
  } s;
  int i;
 
  /* Initialization.  */
  for (i = 0; i < N; i++)
    {
      s.b[i] = i;
    }
 
  /* Dependence analysis fails cause s.a and s.b may overlap.
     Use runtime aliasing test with versioning.  */
  for (i = 0; i < N; i++)
    {
      s.a[i] = s.b[i] + 1;
    }
 
  /* check results:  */
  for (i = 0; i < N; i++)
    {
      if (s.a[i] != i + 1)
	abort ();
    }
 
  return 0;
}
 
int main (void)
{ 
  check_vect ();
 
  return main1 ();
} 
 
 
/* { dg-final { scan-tree-dump-times "vectorized 2 loops" 1 "vect"  { xfail { ia64-*-* sparc*-*-* } } } } */
/* { dg-final { scan-tree-dump "can't determine dependence between" "vect" } } */
/* { dg-final { cleanup-tree-dump "vect" } } */