1  /* PR middle-end/23199 */
       2  /* Testcase by Ralf Menzel <menzel@ls6.cs.uni-dortmund.de> */
       3  
       4  /* { dg-do compile } */
       5  /* { dg-options "-O -fprofile-generate" } */
       6  
       7  union rtunion_def
       8  {
       9    struct rtx_def *rt_rtx;
      10  };
      11  
      12  typedef union rtunion_def rtunion;
      13  
      14  struct rtx_def
      15  {
      16    unsigned int in_struct : 1;
      17    union u {
      18      rtunion fld[1];
      19    } u;
      20  };
      21  
      22  typedef struct rtx_def *rtx;
      23  
      24  static void
      25  check_annul_list_true_false (int annul_true_p, rtx delay_list)
      26  {
      27    rtx temp;
      28    while (1)
      29      {
      30        temp = delay_list;
      31        rtx trial = (((temp)->u.fld[0]).rt_rtx);
      32        if ((annul_true_p && (((trial))->in_struct)))
      33         return;
      34      }
      35  }