+getPrimRepSizeInBytes PtrRep = wORD_SIZE
+getPrimRepSizeInBytes CodePtrRep = wORD_SIZE
+getPrimRepSizeInBytes DataPtrRep = wORD_SIZE
+getPrimRepSizeInBytes RetRep = wORD_SIZE
+getPrimRepSizeInBytes CostCentreRep = wORD_SIZE
+getPrimRepSizeInBytes CharRep = 4
+getPrimRepSizeInBytes IntRep = wORD_SIZE
+getPrimRepSizeInBytes WordRep = wORD_SIZE
+getPrimRepSizeInBytes AddrRep = wORD_SIZE
+getPrimRepSizeInBytes FloatRep = wORD_SIZE
+getPrimRepSizeInBytes DoubleRep = dOUBLE_SIZE * wORD_SIZE
+getPrimRepSizeInBytes Int8Rep = 1
+getPrimRepSizeInBytes Int16Rep = 2
+getPrimRepSizeInBytes Int32Rep = 4
+getPrimRepSizeInBytes Int64Rep = 8
+getPrimRepSizeInBytes Word8Rep = 1
+getPrimRepSizeInBytes Word16Rep = 2
+getPrimRepSizeInBytes Word32Rep = 4
+getPrimRepSizeInBytes Word64Rep = 8
+getPrimRepSizeInBytes StablePtrRep = wORD_SIZE
+getPrimRepSizeInBytes other = pprPanic "getPrimRepSizeInBytes" (ppr other)
+\end{code}
+
+%************************************************************************
+%* *
+\subsection{ArgReps}
+%* *
+%************************************************************************