Hi zhangzw, > invoke void @__cxa_throw(i8* %7, i8* bitcast > (%struct.__fundamental_type_info_pseudo* @_ZTIi to i8*), void (i8*)* > null) > noreturn to label %invcont unwind label %lpad > > say I want to get the Invoke's Operand's name are you trying to get the name "@_ZTIi" or "@__cxa_throw"? Ciao, Duncan.