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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" } } */