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/* { dg-do compile } */

/* { dg-options "-O2 -ftree-loop-distribution -fdump-tree-ldist-all" } */

void foo (int * __restrict__ a,

          int * __restrict__ b,

          int * __restrict__ c)

{

  int i;

  for (i=1; i < 10; i++)

    {

      a[i] += c[i];

      b[i] = a[i - 1] + 1;

    }

  /* This loop is not distributed because the cost of spliting it:

     |  for (i=1; i < N; i++)

     |    a[i] += c[i];

     |

     |  for (i=1; i < N; i++)

     |    b[i] = a[i - 1] + 1;

     is higher due to data in array A that is written and then read in

     another task.  The cost model should forbid the transformation in

     this case.

  */

}

/* { dg-final { scan-tree-dump-times "distributed: split to 2 loops" 0 "ldist" } } */

/* { dg-final { cleanup-tree-dump "ldist" } } */