[GHC] #4902: Create a primop for getting the size of an Array#

[GHC]

#4902: Create a primop for getting the size of an Array#
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    Reporter:  tibbe             |       Owner:                
        Type:  feature request   |      Status:  new           
    Priority:  normal            |   Component:  Runtime System
     Version:  7.0.1             |    Keywords:                
    Testcase:                    |   Blockedby:                
          Os:  Unknown/Multiple  |    Blocking:                
Architecture:  Unknown/Multiple  |     Failure:  None/Unknown  
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Changes (by pumpkin):

 * cc: pumpkingod@… (added)


Comment:

 I've written a patch for this and either I or Johan will be attaching it
 to this ticket when we get a chance to test it.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4902#comment:1>
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