gcc/testsuite/gcc.dg/profile-generate-2.c

/* PR middle-end/23199 */
/* Testcase by Ralf Menzel <menzel@ls6.cs.uni-dortmund.de> */

/* { dg-do compile } */
/* { dg-options "-O -fprofile-generate" } */

union rtunion_def
{
  struct rtx_def *rt_rtx;
};

typedef union rtunion_def rtunion;

struct rtx_def
{
  unsigned int in_struct : 1;
  union u {
    rtunion fld[1];
  } u;
};

typedef struct rtx_def *rtx;

static void
check_annul_list_true_false (int annul_true_p, rtx delay_list)
{
  rtx temp;
  while (1)
    {
      temp = delay_list;
      rtx trial = (((temp)->u.fld[0]).rt_rtx);
      if ((annul_true_p && (((trial))->in_struct)))
       return;
    }
}