// The operand is an unranked tensor, print a warning if the result
    // is static.
    // Note: We do not handle this situation as an error, this would be too
    // restrictive due to incompleteness of shape inference at this point.
    mlir::InFlightDiagnostic diag =
        mlir::emitWarning(op->getLoc(), "has static shape result");
    if (op->getContext()->shouldPrintOpOnDiagnostic()) {