1  /* PR tree-optimization/89278 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-O1 -ftrapv -ftree-loop-distribute-patterns --param max-loop-header-insns=2" } */
       4  
       5  void
       6  foo (int *w, int x, int y, int z)
       7  {
       8    while (x < y + z)
       9      {
      10        w[x] = 0;
      11        ++x;
      12      }
      13  }
      14  
      15  void
      16  bar (int *__restrict u, int *__restrict w, int x, int y, int z)
      17  {
      18    while (x < y + z)
      19      {
      20        w[x] = u[x];
      21        ++x;
      22      }
      23  }