1  /* PR tree-optimization/32772 */
       2  
       3  struct S
       4  {
       5    unsigned long bits[1];
       6  };
       7  
       8  void f1 (int, unsigned long *);
       9  int f2 (void);
      10  int f3 (int, unsigned long *);
      11  int f4 (int, unsigned long *);
      12  
      13  static inline __attribute__ ((always_inline))
      14  void baz (int x, volatile struct S *y)
      15  {
      16    f1 (x, y->bits);
      17  }
      18  
      19  static int
      20  bar (int x, struct S *y)
      21  {
      22    int n;
      23    if (__builtin_constant_p (x) ? f3 (x, y->bits) : f4 (x, y->bits))
      24      baz (x, y);
      25    for (n = f2 (); n < 8; n = f2 ())
      26      f3 (n, y->bits);
      27  }
      28  
      29  void
      30  foo (int x, int y)
      31  {
      32    struct S m;
      33    while ((y = bar (x, &m)) >= 0);
      34  }