You get nothing!
"No point or stay credit, airline frequent flyer mileage credit or credit toward tier status will be awarded for "no show" situations when a member has made a reservation guaranteed with a credit card but then does not check in to the hotel--irrespective of whether or not the member's credit card is charged for any portion of the reserved stay per the hotel's "no show" policy."
http://hhonors.hilton.com/en/hhonors...or_hotel_stays