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/* { dg-require-effective-target vect_int } */
 
#include <stdarg.h>
#include "tree-vect.h"
 
#define N 17
 
int ia[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48};
int ib[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48};
int res[N] = {12,24,36,48,60,72,84,96,108,120,132,144,156,168,180,192,48};
 
__attribute__ ((noinline))
int main1 ()
{
  int i;
 
  /* Not vectorizable due to data dependence: dependence distance 1.  */ 
  for (i = 0; i < N - 1; i++)
    {
      ia[i+1] = ia[i] * 4;
    }
 
  /* check results:  */
  for (i = 0; i < N - 1; i++)
    {
      if (ia[i] != 0)
        abort ();
    } 
 
  /* Vectorizable. Dependence distance -1.  */
  for (i = 0; i < N - 1; i++)
    {
      ib[i] = ib[i+1] * 4;
    }
 
  /* check results:  */
  for (i = 0; i < N - 1; i++)
    {
      if (ib[i] != res[i])
        abort ();
    }
 
  return 0;
}
 
int main (void)
{
  check_vect();
 
  return main1 ();
}
 
/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" {xfail vect_no_align } } } */
/* { dg-final { scan-tree-dump-times "dependence distance >= VF or negative" 1 "vect"  } } */
/* { dg-final { cleanup-tree-dump "vect" } } */