}

// Determine if op commutes with transposes. Requires a strict
// definition of Elementwise, all i/o shapes and types must be same-rank
// broadcastable and fully static. Consider moving this into attribute later.
bool IsElementwise(Operation *op) {
  if (!(llvm::isa<TFL::AddOp, TFL::MulOp, TFL::DivOp, TFL::SubOp,
                  TFL::MaximumOp, TFL::MinimumOp>(op))) {
    return false;
  }

  auto opr1_type =