[GHC] #5981: quadratic slowdown with very long module names

[GHC]

#5981: quadratic slowdown with very long module names
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    Reporter:  guest             |       Owner:  simonmar                    
        Type:  bug               |      Status:  new                         
    Priority:  normal            |   Milestone:  7.6.1                       
   Component:  Compiler          |     Version:  7.4.1                       
    Keywords:                    |          Os:  Unknown/Multiple            
Architecture:  Unknown/Multiple  |     Failure:  Compile-time performance bug
  Difficulty:  Unknown           |    Testcase:                              
   Blockedby:                    |    Blocking:                              
     Related:                    |  
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Comment(by marlowsd@…):

 commit 6f1a4327263385d8056d7cf754ee357d2b14c24b
 {{{
 Author: Simon Marlow <marlowsd at gmail.com>
 Date:   Tue Apr 10 16:31:13 2012 +0100

     fix quadratic performance issue with long module names (#5981)

  compiler/main/HeaderInfo.hs |   26 +++++++++++++++-----------
  1 files changed, 15 insertions(+), 11 deletions(-)
 }}}

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5981#comment:2>
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