[GHC] #867: Integer arithmetic gives the wrong answer on amd64/Linux

#867: Integer arithmetic gives the wrong answer on amd64/Linux
-------------------------------+--------------------------------------------
    Reporter:  igloo           |        Owner:         
        Type:  bug             |       Status:  new    
    Priority:  normal          |    Milestone:         
   Component:  Compiler        |      Version:  6.4.1  
    Severity:  normal          |     Keywords:         
          Os:  Linux           |   Difficulty:  Unknown
Architecture:  x86_64 (amd64)  |  
-------------------------------+--------------------------------------------
On x86 I get:

 {{{
 Prelude> reverse $ take 10 $ reverse $ show $ sum [ x ^ x | x <- [1..1000]
 ]
 "9110846700"
 }}}

 which is correct, but on amd64/Linux I get:

 {{{
 Prelude> reverse $ take 10 $ reverse $ show $ sum [ x ^ x | x <- [1..1000]
 ]
 "0612504812"
 }}}

 Both ghci's above are 6.4.1, but I also see it with the HEAD (a few days
 old).

 Seen on Debian, Gentoo and rpath distributions.


 Thanks
 Ian

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/867>
GHC <http://www.haskell.org/ghc/>
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