[parc] impl amo.xchg, amo.min, hint_wl, remove warning from stat
[parc] impl amo.xchg, amo.min, hint_wl, remove warning from stat

futurecore/pydgin,cornell-brg/pydgin,moreati/pydgin,futurecore/pydgin,cornell-brg/pydgin,futurecore/pydgin,moreati/pydgin,moreati/pydgin,futurecore/pydgin,cornell-brg/pydgin,cornell-brg/pydgin,moreati/pydgin