1  /* PR rtl-optimization/28726 */
       2  /* Origin: Sigurd Schneider <sg313d@gmail.com> */
       3  
       4  /* { dg-do run } */
       5  /* { dg-options "-O2 -fsched2-use-superblocks" } */
       6  
       7  extern void abort (void);
       8  
       9  static double my_loop(void) __attribute__((noinline));
      10  
      11  static double my_loop(void)
      12  {
      13    double retval = 0.0;
      14    const unsigned char *start = "\005\b\000";
      15    const unsigned char *const end = start + 2;
      16  
      17    while (start < end)
      18      retval += *start++;
      19  
      20    return retval;
      21  }
      22  
      23  int main(void)
      24  {
      25    if (my_loop() != 13.0)
      26      abort ();
      27  
      28    return 0;
      29  }