[GHC] #14746: Provide PDEP and PEXT instructions

[GHC]

#14746: Provide PDEP and PEXT instructions
-------------------------------------+-------------------------------------
           Reporter:  andrewthad     |             Owner:  (none)
               Type:  feature        |            Status:  new
  request                            |
           Priority:  normal         |         Milestone:
          Component:  Compiler       |           Version:  8.2.2
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
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 The PDEP (parallel bit deposit) and PEXT (parallel bit extract)
 instructions are super cool and could be very naturally expressed in GHC
 as:

 {{{
 packedBitDeposit :: Word# -> Word# -> Word#
 packedBitExtract :: Word# -> Word# -> Word#
 }}}

 I requesting that these be added to GHC.Prim (or more accurately, I'm
 requesting approval for these be added to GHC.Prim, by me or by any other
 interested party, possibly at a more distant point in the future).

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14746>
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