unmodeled side effects

Hi
   A bunch of instructions that I have defined in tablegen files get
tagged with unmodeledSideEffect property. I have defined these
instructions with no corresponding dag patterns. Is there a way i can
avoid this property and say they do not have any side effects

thanks
shrey

Try setting neverHasSideEffects to 1:

let neverHasSideEffects = 1 in
def MYINSTRUCTION : ...