[GHC] #947: ghc -O space leak: CSE between different CAFs

[GHC]

#947: ghc -O space leak: CSE between different CAFs
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 Reporter:  int-e at gmx.de  |          Owner:         
     Type:  bug           |         Status:  new    
 Priority:  normal        |      Milestone:  6.8    
Component:  Compiler      |        Version:  6.5    
 Severity:  normal        |     Resolution:         
 Keywords:                |     Difficulty:  Unknown
 Testcase:                |   Architecture:  x86    
       Os:  Linux         |  
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Changes (by simonpj):

  * milestone:  => 6.8

Comment:

 I don't know any way to solve this problem automatically.  But I do think
 it should be under your control.

 For now, you can say -fno-cse.

 However, I recently changed GHC to do no CSE in functions marked INLINE or
 NOINLINE.  However that does not work in this case, because the sub-
 expressions get floated out.  I'll try to fix that when I next visit the
 simplifier.  That would allow per-definition control of CSE, which is more
 what you want.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/947>
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