1  /* PR rtl-optimization/58668 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-O2" } */
       4  /* { dg-additional-options "-mthumb" { target { { arm*-*-* } && arm_thumb2_ok } } } */
       5  
       6  void *fn1 (void *);
       7  void *fn2 (void *, const char *);
       8  void fn3 (void *);
       9  void fn4 (void *, int);
      10  
      11  void *
      12  test (void *x)
      13  {
      14    void *a, *b;
      15    if (!(a = fn1 (x)))
      16      return (void *) 0;
      17    if (!(b = fn2 (a, "w")))
      18      {
      19        fn3 (a);
      20        return (void *) 0;
      21      }
      22    fn3 (a);
      23    fn4 (b, 1);
      24    return b;
      25  }