[GHC] #5210: Add primops for copying/cloning byte arrays

[GHC]

#5210: Add primops for copying/cloning byte arrays
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    Reporter:  tibbe             |        Owner:  simonmar    
        Type:  feature request   |       Status:  patch       
    Priority:  high              |    Milestone:  7.2.1       
   Component:  Compiler          |      Version:  7.0.3       
    Keywords:                    |     Testcase:              
   Blockedby:                    |   Difficulty:              
          Os:  Unknown/Multiple  |     Blocking:              
Architecture:  Unknown/Multiple  |      Failure:  None/Unknown
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Comment(by tibbe):

 I've updated the patches to apply cleanly to the current HEAD. There will
 be some merging needed once the patch to unroll memcpy in the native
 codegen has been applied.

 (Please ignore the file with `.2` in its name. It got attached
 accidentally.)

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5210#comment:7>
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