emitPrimOp dflags [res] SizeofMutableArrayOp [arg]
   = emitPrimOp dflags [res] SizeofArrayOp [arg]
emitPrimOp dflags [res] SizeofMutableArrayOp [arg]
   = emitPrimOp dflags [res] SizeofArrayOp [arg]
emitPrimOp dflags [res] SizeofMutableArrayOp [arg]
   = emitPrimOp dflags [res] SizeofArrayOp [arg]