[GHC] #7436: Derived Foldable and Traversable instances become extremely inefficient due to eta-expansion

[GHC]

#7436: Derived Foldable and Traversable instances become extremely inefficient due
to eta-expansion
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  Reporter:  shachaf                  |          Owner:                  
      Type:  bug                      |         Status:  closed          
  Priority:  normal                   |      Milestone:                  
 Component:  Compiler                 |        Version:  7.6.1           
Resolution:  fixed                    |       Keywords:                  
        Os:  Unknown/Multiple         |   Architecture:  Unknown/Multiple
   Failure:  Runtime performance bug  |     Difficulty:  Unknown         
  Testcase:  perf/should_runt/T7436   |      Blockedby:                  
  Blocking:                           |        Related:                  
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Changes (by liyang):

 * cc: hackage.haskell.org@… (added)


Comment:

 Since this issue affects a large number of users and doesn't seem too
 contentious, could this fix be included in 7.6.2?

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7436#comment:18>
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