builder.create<YieldOp>(controlled_op->getLoc(),
                            controlled_op->getResults());
    result.location = controlled_op->getLoc();
  } else if (parser.parseRegion(body)) {
    return failure();
  }

  ControlNodeOp::ensureTerminator(body, parser.getBuilder(), result.location);

  // Get the results type for the control node from the terminator operands.