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2 points by akkartik 3228 days ago | link | parent

Yeah there's a bunch of haskell papers on this. Among other things, purity and lazy eval allow them to do crazy loop-fusion transformations: http://stackoverflow.com/questions/578063/what-is-haskells-s...

I did compiler work in a past life, but it was C compilers where you have to be crazy conservative in your transformations.