1  /* PR optimization/13318 */
       2  /* Origin: <bremner@unb.ca> */
       3  /* Reduced testcase: Wolfgang Bangerth <bangerth@dealii.org> */
       4  
       5  /* Verify that the big multiplier doesn't cause an integer
       6     overflow in the loop optimizer.  */
       7  
       8  /* { dg-do compile } */
       9  /* { dg-options "-O2" } */
      10  
      11  struct S {
      12    int key;
      13    int rnext,rprev;
      14  };
      15   
      16  void foo(struct S* H)
      17  {
      18    int i, k;
      19    for (i=0; i<2; i++){
      20      struct S* cell=H+k;
      21      cell->key=i*(0xffffffffUL/2);
      22      cell->rnext=k+(1-i);
      23      cell->rprev=k+(1-i);
      24    }
      25  }