1  /* PR tree-optimization/18792 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-O1 -ftree-loop-linear" } */
       4  void put_atoms_in_triclinic_unitcell(float x[][3])
       5  {
       6  	int i=0,d;
       7  
       8  	while (x[i][3] < 0)
       9  		for (d=0; d<=3; d++)
      10  			x[i][d] = 0;
      11  
      12  	while (x[i][3] >= 0)
      13  		for (d=0; d<=3; d++)
      14  			x[i][d] = 0;
      15  
      16  }