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...struction’:", "Instruction.h:50: note: virtual llvm::Instruction* > llvm::Instruction::clone(llvm::LLVMContext&) const" > An add or sub should be a BinaryOperator, if memory serves me correctly. Looking at mainline doxygen, there's a whole bunch of CreateNSWAdd, CreateNSWMul, etc. methods. It's one of those that you want. -- John T. > Also i have used BinaryOperator::create(), but it gives error that there is > no function called create(). > > Thanks again for your reply. > > > John Criswell-2 wrote: > >> help__me_please wrote: &...

Thanks for reply. I have used AllocaInst, it's working but i think it's only for allocating some memory for new variable. And CallInst creates a call instruction. I am looking for creating a add or sub instruction. I used function instruction(), which gives me error "error: cannot allocate an object of abstract type ‘llvm::Instruction’" and also "Instruction.h:28: note: