possible performance benchmark for IntMap

Dear maintainers,

I have an application that could be made into a performance benchmark for IntMap.
It is similar to what fgl (functional graph library) does, but for a specific use case.

Source: https://gitlab.imn.htwk-leipzig.de/waldmann/pure-matchbox ,
Explanation (of IntMap usage): https://gitlab.imn.htwk-leipzig.de/waldmann/pure-matchbox/blob/master/paper/rel.tex

To make it "more stand-alone", I should cut out all the parsing/(pretty)printing stuff which pulls in a lot of dependencies, and takes ages to compile. Perhaps this can be done via conditionals in the cabal file.