//===----------------------------------------------------------------------===//

LogicalResult ClusterFuncOp::verifySymbolUses(
    mlir::SymbolTableCollection& symbolTable) {
  StringAttr func_attr = getFuncAttr().getRootReference();
  func::FuncOp func =
      symbolTable.lookupNearestSymbolFrom<func::FuncOp>(*this, func_attr);
  if (!func) {
    return emitError("'func' attribute refers to an undefined function: ")