Is there unused code in GHC source?

Simon Peyton-Jones simonpj at
Mon Jan 14 14:40:44 CET 2013

Almost certainly some, but probably not all that much.  Do highlight any that you find.


| -----Original Message-----
| From: ghc-devs-bounces at [mailto:ghc-devs-bounces at]
| On Behalf Of Jan Stolarek
| Sent: 14 January 2013 13:00
| To: ghc-devs at
| Subject: Is there unused code in GHC source?
| Dear devs,
| I'm trying to dig into GHC code and one thing is wondering me. Does the
| source contain old fragments of code that are not used anymore? Well,
| for such a big project the answer will probably be 'yes', but I'm
| wondering what the scale of this might be. I thought that such leftovers
| could be a bit misleading and I want to know if I should stay alert :)
| Janek
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