Archipelago » qemu

/* PR rtl-optimization/28634.  On targets with delayed branches,

   dbr_schedule could do the next iteration's addition in the

   branch delay slot, then subtract the value again if the branch

   wasn't taken.  This can lead to rounding errors.  */

double x = -0x1.0p53;

double y = 1;

int

main (void)

{

  while (y > 0)

    y += x;

  if (y != x + 1)

    abort ();

  exit (0);

}