*os_ << "---------------------------------\n";
  SmallVector<StringRef, 64> sorted_op(op_with_dialect_count_.keys());
  SmallVector<StringRef, 64> sorted_dialect(dialect_count_.keys());
  llvm::sort(sorted_op);
  llvm::sort(sorted_dialect);

  *os_ << " * Accepted dialects: ";
  int num_dialect = 0;
  // Print the accepted dialect list.
  for (const auto &dialect_name : accepted_dialects_) {