#includeIn this example, a MachineOperand object is created and its value is set to undefined using setIsUndef method. Then, the isUndef method is used to check whether the operand is undefined or not. The library package used in this example is LLVM, which provides the MachineOperand class and its associated methods.#include int main() { llvm::MachineOperand myOperand; myOperand.setIsUndef(); if (myOperand.isUndef()) { std::cout << "myOperand is undefined" << std::endl; } else { std::cout << "myOperand is defined" << std::endl; } return 0; }