A Burger King last night (definitely not first choice but it was one of the few places still open that was serving food) tried to DCC us. The cashier kept the terminal after tapping but fortunately pushed the EUR button after he asked us which currency we wanted to use.

Anyway, it looks like so far on this trip, DCC may be more likely at places that see a lot of tourists. Not enough data points to know completely for sure, though, but at least for us, most places in Dublin didn't DCC.