[GHC] #1794: map has strange unfolding, code blowup and performance loss

[GHC]

#1794: map has strange unfolding, code blowup and performance loss
-------------------------+--------------------------------------------------
    Reporter:  simonmar  |        Owner:  igloo           
        Type:  merge     |       Status:  new             
    Priority:  normal    |    Milestone:  6.8.1           
   Component:  Compiler  |      Version:  6.6.1           
    Severity:  normal    |   Resolution:                  
    Keywords:            |   Difficulty:  Moderate (1 day)
          Os:  Unknown   |     Testcase:                  
Architecture:  Unknown   |  
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Changes (by simonmar):

  * owner:  simonmar => igloo

Comment:

 Looks good for 6.8, you also need these two:

 {{{
 Tue Oct  9 15:53:05 BST 2007  Simon Marlow <simonmar at microsoft.com>
   * small reworking of the loop-breaker-choosing algorithm

 Sat Sep 15 20:06:17 BST 2007  Norman Ramsey <nr at eecs.harvard.edu>
   * added foldUFM_Directly, used where appropriate, killed all warnings
 }}}

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1794#comment:3>
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