bool isOperandInCodeSpace (operand *);
operand *opFromOpWithDU (operand *, bitVect *, bitVect *);
iCode *copyiCode (iCode *);
bool isOperandInCodeSpace (operand *);
operand *opFromOpWithDU (operand *, bitVect *, bitVect *);
iCode *copyiCode (iCode *);