[GHC] #14964: performance regressions from 8.0.2 to 8.4.1

[GHC]

#14964: performance regressions from 8.0.2 to 8.4.1
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        Reporter:  elaforge          |                Owner:  (none)
            Type:  task              |               Status:  infoneeded
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.4.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Runtime           |  Unknown/Multiple
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by elaforge):

 Sorry for the delay.  Yes the programs are public, but while reproduction
 is easy, the whole program is big and complicated.  I'd like to do a bit
 of work first to narrow down what is changing in there.

 Digging into this is next on my priority list, but it's a hobby project
 and I'm starting a new job so give me a few weeks.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14964#comment:8>
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