Style and comments

  // from this custom gate definition

  std::vector<mlir::Value> result_qubit_vals;

  for (auto arg : entryBlock.getArguments()) {

    mlir::Value last_user = arg;

    // check if argument is a gate param

    if (arg.getType().isF64()) {

        result_qubit_vals.push_back(arg);

    // skip use chain traversal

        continue;

    }

    mlir::Value last_user = arg;

    auto users = last_user.getUsers();

    while (!users.empty()) {