[GHC] #6104: Regression: space leak in HEAD vs. 7.4

[GHC]

#6104: Regression: space leak in HEAD vs. 7.4
---------------------------------+------------------------------------------
    Reporter:  simonmar          |       Owner:                              
        Type:  bug               |      Status:  new                         
    Priority:  highest           |   Milestone:  7.6.1                       
   Component:  Compiler          |     Version:  7.5                         
    Keywords:                    |          Os:  Unknown/Multiple            
Architecture:  Unknown/Multiple  |     Failure:  Compile-time performance bug
  Difficulty:  Unknown           |    Testcase:                              
   Blockedby:                    |    Blocking:                              
     Related:                    |  
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Changes (by pcapriotti):

  * owner:  pcapriotti =>


Comment:

 Here are some heap profiler reports comparing GHC HEAD with 7.4 when
 compiling
 Cabal and the single Cabal module Distribution/Simple/Setup.hs.

 They are obtained by running:

 {{{
 ghc -O --make Distribution.Simple +RTS -hc
 }}}

 and

 {{{
 ghc -O -fforce-recomp --make Distribution/Simple/Setup.hs +RTS -hc
 }}}

 respectively, with both compilers built with `-prof -auto` on
 `compiler/simplCore/Simplify.lhs`, where the leak seems to be located.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/6104#comment:2>
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