[GHC] #7014: RULES for bitwise logic and shift primops

[GHC]

#7014: RULES for bitwise logic and shift primops
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    Reporter:  akio              |       Owner:  pcapriotti      
        Type:  feature request   |      Status:  patch           
    Priority:  normal            |   Milestone:  7.6.1           
   Component:  Compiler          |     Version:  7.4.2           
    Keywords:                    |          Os:  Unknown/Multiple
Architecture:  Unknown/Multiple  |     Failure:  None/Unknown    
  Difficulty:  Unknown           |    Testcase:                  
   Blockedby:                    |    Blocking:                  
     Related:                    |  
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Comment(by simonmar):

 Don't add any assumptions that target == host when that could cause
 incorrect code to be generated, because that would make it impossible to
 cross-compile.  (I believe at the moment the worst that could happen is
 that some floating-point constant folding is performed at the wrong
 precision).

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7014#comment:6>
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