ghc: panic! (the 'impossible' happened) linkBCO: >= 64k insns in BCO

[guest]

ghci told me to report a bug:

$ ghci 18.hs
GHCi, version 6.10.1: http://www.haskell.org/ghc/  :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer ... linking ... done.
Loading package base ... linking ... done.
[1 of 1] Compiling Main             ( 18.hs, interpreted )
ghc: panic! (the 'impossible' happened)
  (GHC version 6.10.1 for i386-unknown-linux):
        linkBCO: >= 64k insns in BCO

Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

> 

$ ghci --version
The Glorious Glasgow Haskell Compilation System, version 6.10.1
$ uname -a
Linux ogum 2.6.24-23-generic #1 SMP Mon Jan 26 00:13:11 UTC 2009 i686 GNU/Linux

I've attached the offending file, here's the md5sum:

$ md5sum 18.hs 
1594c7d5522d0b1d7f1a70f6f3dfc24a  18.hs

[guest]

source file 18.hs tickling the bug

[guest]

diff that happened to fix the parsing fwiw

[bchallenor]

This looks very similar to my bug.

 http://hackage.haskell.org/trac/ghc/ticket/3047

It's interesting that you also were doing Project Euler, though yours was on problem 18 and mine on 22. :) And it's also interesting that my solution to 18 didn't trigger the bug, even though I laid out my triangles nearly identically to you.

[simonmar]

dup of #789, but thanks for the test case!

[jsoffer]

Same behavior, problem 22