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

[GHC]

#6156: Optimiser bug on linux-powerpc
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  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):

 By adding debug printf statements to `hs_word64ToWord` I was able to
 determine that `hs_word64ToWord` was not truncating its input value to the
 16 least significant bits, but that the value was already truncated before
 being passed in.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/6156#comment:27>
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