1  /* PR middle-end/55750 */
       2  
       3  extern void abort (void);
       4  
       5  struct S
       6  {
       7    int m : 1;
       8    int n : 7;
       9  } arr[2];
      10  
      11  __attribute__((noinline, noclone)) void
      12  foo (unsigned i)
      13  {
      14    arr[i].n++;
      15  }
      16  
      17  int
      18  main ()
      19  {
      20    arr[0].m = -1;
      21    arr[0].n = (1 << 6) - 1;
      22    arr[1].m = 0;
      23    arr[1].n = -1;
      24    foo (0);
      25    foo (1);
      26    if (arr[0].m != -1 || arr[0].n != -(1 << 6) || arr[1].m != 0 || arr[1].n != 0)
      27      abort ();
      28    return 0;
      29  }