[GHC] #5631: Compilation slowdown from 7.0.x to 7.2.x

[GHC]

#5631: Compilation slowdown from 7.0.x to 7.2.x
---------------------------------+------------------------------------------
    Reporter:  bjpop             |        Owner:                              
        Type:  bug               |       Status:  new                         
    Priority:  high              |    Milestone:  7.4.1                       
   Component:  Compiler          |      Version:  7.2.1                       
    Keywords:                    |     Testcase:                              
   Blockedby:                    |   Difficulty:                              
          Os:  Unknown/Multiple  |     Blocking:                              
Architecture:  Unknown/Multiple  |      Failure:  Compile-time performance bug
---------------------------------+------------------------------------------
Changes (by simonmar):

  * priority:  normal => high
  * milestone:  => 7.4.1


Comment:

 Thanks.  Looks pretty serious, we'll investigate.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5631#comment:1>
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