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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

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: