[GHC] #9289: add anyToAddr# :: (#a#)-> Addr# primop (inverse of addrToAny#)

[GHC]

#9289: add anyToAddr# :: (#a#)-> Addr# primop (inverse of addrToAny#)
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       Reporter:  carter            |             Owner:
           Type:  feature request   |            Status:  new
       Priority:  normal            |         Milestone:  7.10.1
      Component:  Compiler          |           Version:  7.8.2
       Keywords:                    |  Operating System:  Unknown/Multiple
   Architecture:  Unknown/Multiple  |   Type of failure:  None/Unknown
     Difficulty:  Unknown           |         Test Case:
     Blocked By:                    |          Blocking:
Related Tickets:                    |
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 I was talking with Reid Barton, and he pointed out that having a primop
 with type
 {{{
 anyToAddr# :: (#a#)-> Addr#
 }}}

 would help with a lot of performance hacking.

 One use case would be running prefetch  on lifted values without
 evaluating them.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9289>
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