[GHC] #7850: Strangely high memory usage on optimized Ackermann function

[GHC]

#7850: Strangely high memory usage on optimized Ackermann function
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    Reporter:  dolio             |       Owner:                         
        Type:  bug               |      Status:  patch                  
    Priority:  normal            |   Milestone:  7.6.3                  
   Component:  Compiler          |     Version:  7.6.2                  
    Keywords:                    |          Os:  Unknown/Multiple       
Architecture:  Unknown/Multiple  |     Failure:  Runtime performance bug
  Difficulty:  Unknown           |    Testcase:                         
   Blockedby:                    |    Blocking:                         
     Related:                    |  
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Changes (by simonmar):

  * status:  new => patch
  * milestone:  => 7.6.3


Comment:

 As noted earlier, it's already fixed in master.  I don't remember when I
 noticed the bug and fixed it, the fix seems to have come in with the giant
 patch to rewrite the RTS Cmm files in the new syntax.

 Anyway, attached is a patch for the 7.6 branch that fixes it.  I'll let
 the release engineer decide what to do with it :-)

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7850#comment:29>
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