Add some more exotic primitive ops, ffs,clz,ctz,byteswap,popcount,parity.
Add some more exotic primitive ops, ffs,clz,ctz,byteswap,popcount,parity.

Ignore-this: b61b1c08db35ccad33f24536b99913df

darcs-hash:a83c329ce49fd101244c83f2a879b804cc6ccbe1

dpwright/jhc,dpwright/jhc,dpwright/jhc,dpwright/jhc