test/expect/TestScript.test_tuple_slicing.expect

graph(%a : Dynamic) {
  %1 : int = prim::Constant[value=1]()
  %2 : int = prim::Constant[value=2]()
  %3 : int = prim::Constant[value=3]()
  %4 : int = prim::Constant[value=4]()
  %5 : bool = prim::TensorToBool(%a)
  %b : Tuple = prim::If(%5)
    block0() {
      %b.1 : Tuple = prim::TupleConstruct(%1, %2, %3, %4)
      -> (%b.1)
    }
    block1() {
      %b.2 : Tuple = prim::TupleConstruct(%4, %3, %2, %1)
      -> (%b.2)
    }
  %c : Tuple = prim::TupleSlice[beg=0, end=4](%b)
  %e : Tuple = prim::TupleSlice[beg=1, end=3](%c)
  %11 : int, %12 : int = prim::TupleUnpack(%e)
  return (%11, %12);
}