2 AbsBinds [] [] [(fubar.t439, Main.fubar{-r79-})]
4 fubar.t439 :: IoWorld -> (Int, IoWorld)
6 = (thenIO_{-r99-} [bpv83, Int]) (ccall f [bpv83] ) (ccall b [Int] )
11 Fail: panic! (the `impossible' happened):
12 getBoxedPrimTypeInfo: bpv83
14 Please report it as a compiler bug to glasgow-haskell-bugs@dcs.glasgow.ac.uk.