It was around 140K LoC as of 2011. [1] [1] http://www.aosabook.org/en/ghc.html http://www.aosabook.org/en/ghc.html EDIT: I see another poster arrived at a con

It was around 140K LoC as of 2011. [1] [1] http://www.aosabook.org/en/ghc.html http://www.aosabook.org/en/ghc.html EDIT: I see another poster arrived at a conclusion of 200KLoC from the same source. I'm guessing the discrepancy is about the ~40KLoC which comprise the runtime system.