add_immBlock_pred (r, x);
x = new_Cond (new_Proj(new_Cmp(new_Const (mode_Iu, new_tarval_from_long (0, mode_Is)),
new_Const (mode_Iu, new_tarval_from_long (0, mode_Is))),
add_immBlock_pred (r, x);
x = new_Cond (new_Proj(new_Cmp(new_Const (mode_Iu, new_tarval_from_long (0, mode_Is)),
new_Const (mode_Iu, new_tarval_from_long (0, mode_Is))),