if (!entry_func_symbol) {
    return op.emitOpError() << "does not have "
                            << kStablehloEntryFunctionAttrName << " attribute";
  }
  auto entry_func =
      symbol_table.lookupSymbolIn<func::FuncOp>(module, entry_func_symbol);
  if (!entry_func) {
    return op.emitOpError()
           << "references an unknown entry function " << entry_func_symbol;
  }