emitPrimOp dflags [res] SizeofByteArrayOp [arg]
   = emit $ mkAssign (CmmLocal res) (cmmLoadIndexW dflags arg (fixedHdrSizeW dflags) (bWord dflags))
emitPrimOp dflags [res] SizeofByteArrayOp [arg]
   = emit $ mkAssign (CmmLocal res) (cmmLoadIndexW dflags arg (fixedHdrSizeW dflags) (bWord dflags))
emitPrimOp dflags [res] SizeofByteArrayOp [arg]
   = emit $ mkAssign (CmmLocal res) (cmmLoadIndexW dflags arg (fixedHdrSizeW dflags) (bWord dflags))