problem adding phase

[Robin Laney]

I am trying to add an optimisation phase to ghc and get the
following error message. Is there a simple way for me to
fix this ? (I am trying to generate code variants.)

panic! (the `impossible' happened):
        lookupBindC:no info!
for: Main.m{-r1IZ-}{-r1IZ-} {- Int/EXP(..){-2i-} _NI_ -}
(probably: data dependencies broken by an optimisation pass)
static binds for:
local binds for:

Please report it ...


Robin Laney