1  /* PR rtl-optimization/33673 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-Os -fno-forward-propagate -fno-guess-branch-probability -fno-move-loop-invariants -fno-tree-dominator-opts -fno-tree-loop-optimize" } */
       4  
       5  extern int f1 (int);
       6  extern int f2 (int);
       7  
       8  extern int *a;
       9  
      10  static void
      11  find_reg (int n)
      12  {
      13    int i, pass;
      14    unsigned int used[2], used1[2];
      15  
      16    int c = n ? f1 (a[1]) : f2 (a[1]);
      17  
      18    for (i = 64, pass = 0; pass <= 1 && i >= 64; pass++)
      19      {
      20        if (pass == 1)
      21  	{
      22  	  unsigned int *scan_tp_ = used;
      23  	  unsigned int *scan_fp_ = used1;
      24  	  int j;
      25  	  for (j = 0; j < 2; j++)
      26  	    *scan_tp_++ = *scan_fp_++;
      27  	}
      28        for (i = 0; i < 64; i++)
      29  	{
      30  	  int regno = i;
      31  	  if (n == 0)
      32  	    if (i == regno)
      33  	      break;
      34  	}
      35      }
      36  }
      37  
      38  void
      39  global_alloc ()
      40  {
      41    find_reg (0);
      42    find_reg (1);
      43  }