[GHC] #3972: ghc 6.12.1 and 6.13.20090922 consume a lot more memory than 6.10.4 when compiling language-python package

[GHC]

#3972: ghc 6.12.1 and 6.13.20090922 consume a lot more memory than 6.10.4 when
compiling language-python package
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    Reporter:  bjpop           |        Owner:  igloo                                                                 
        Type:  bug             |       Status:  new                                                                   
    Priority:  high            |    Milestone:  7.0.1                                                                 
   Component:  Compiler        |      Version:  6.12.1                                                                
    Keywords:  memory usage    |     Testcase:  http://projects.haskell.org/language-python/language-python-0.2.tar.gz
   Blockedby:                  |   Difficulty:                                                                        
          Os:  Linux           |     Blocking:                                                                        
Architecture:  x86_64 (amd64)  |      Failure:  Compile-time performance bug                                          
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Changes (by simonpj):

  * owner:  simonpj => igloo


Comment:

 I claim this bug is fixed in the HEAD.  At least, compiling Ian's example
 produces every reasonable code.

 Ian: could you add a test using the two-module example you so helpfully
 put togehter (`AST` and `ParserUtils`), that checks that the
 `ParserUtils.o` file is of reasonable size?  Or that `-dshow-passes`
 produces intermediates of reasonable size.

 And `bjpop`: could you try compiling your python package again?  Thanks.

 Simon

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3972#comment:12>
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