[GHC] #7429: Unexplained performance boost with +RTS -h

[GHC]

#7429: Unexplained performance boost with +RTS -h
---------------------------------+------------------------------------------
    Reporter:  simonmar          |       Owner:                         
        Type:  bug               |      Status:  new                    
    Priority:  normal            |   Milestone:  7.8.1                  
   Component:  Compiler          |     Version:  7.6.1                  
    Keywords:                    |          Os:  Unknown/Multiple       
Architecture:  Unknown/Multiple  |     Failure:  Runtime performance bug
  Difficulty:  Unknown           |    Testcase:                         
   Blockedby:                    |    Blocking:                         
     Related:                    |  
---------------------------------+------------------------------------------

Comment(by tomberek):

 Replying to [comment:7 tomberek]:
 correction, the GC fix doesn't work for twoItemList either (it's late, i
 got confused)

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7429#comment:8>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler