if (num_results < 0) return mlir::failure();

  llvm::SmallVector<mlir::Type, 4> operand_types;
  if (options.has_chain) operand_types.push_back(chain_type);
  if (parser.resolveOperands(in_chains, operand_types, loc, result.operands) ||
      parser.resolveOperands(operands, tensor_type, result.operands))
    return mlir::failure();

  if (options.has_chain) result.types.push_back(chain_type);