[GHC] #9944: Performance issue

[GHC]

#9944: Performance issue
-------------------------------------+-------------------------------------
        Reporter:  clinton           |                   Owner:
            Type:  bug               |                  Status:  new
        Priority:  low               |               Milestone:
       Component:  Compiler          |                 Version:  7.8.3
      Resolution:                    |                Keywords:
Operating System:  Linux             |            Architecture:  x86_64
 Type of failure:  Runtime           |  (amd64)
  performance bug                    |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:
-------------------------------------+-------------------------------------

Comment (by simonpj):

 How much faster?  How did you measure it?  How did you trip over this?  (I
 would never have guessed it would make a measurable difference.)

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9944#comment:2>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler