[GHC] #6156: Optimiser bug on linux-powerpc

[GHC]

#6156: Optimiser bug on linux-powerpc
------------------------------------------+---------------------------------
  Reporter:  erikd                        |          Owner:  pcapriotti
      Type:  bug                          |         Status:  new       
  Priority:  normal                       |      Milestone:  7.6.1     
 Component:  Compiler                     |        Version:  7.4.1     
Resolution:                               |       Keywords:            
        Os:  Linux                        |   Architecture:  powerpc   
   Failure:  Incorrect result at runtime  |     Difficulty:  Unknown   
  Testcase:                               |      Blockedby:            
  Blocking:                               |        Related:            
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Comment(by erikd):

 @pcapriotti : No this issue is not fixed by the patch in #5900. The Debian
 Haskell Group hit this issue first with an unpatched (wrt #5900) version
 of ghc (7.4.1 I believe). I then tested it with 7.4.2 (which is patched
 wrt #5900) and ghc HEAD at the time. 7.4.2 displayed the problem and ghc
 HEAD did not. I was not able to figure out why 7.4.2 had a problem and
 HEAD did not.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/6156#comment:19>
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