Neither do I, but I am pretending to:

http://www.cse.unsw.edu.au/~chak/haskell/ghc/comm/

This is a - so far, very small - set of notes on GHC internals to assist my weak memory. Maybe it is also useful for others.

Great!! See also Olaf Chitil's old paper on implementing an optimisation pass in GHC: @UnPublished{ Chitil97:Adding, author="Olaf Chitil", title="Adding an Optimisation Pass to the {G}lasgow {H}askell {C}ompiler", month=nov # " 4", year="1997", documentURL="http://www-i2.informatik.RWTH-Aachen.de/~chitil/", status="copy,unverified", } --KW 8-) -- Keith Wansbrough http://www.cl.cam.ac.uk/users/kw217/ Cambridge University Computer Laboratory.