[GHC] #11526: unsafeLookupStaticPtr should not live in IO

[GHC]

#11526: unsafeLookupStaticPtr should not live in IO
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        Reporter:  edsko             |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.0.1
       Component:  Core Libraries    |              Version:  8.0.1-rc1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by mboes):

 Replying to [comment:5 simonpj]:
 > Hmm.  I'm deeply suspicious of `StaticKey`.  It plays no role in our
 plan of record [wiki:StaticPointers].

 FTR the reason we have StaticKey (i.e. just Fingerprint, nothing new) is
 to avoid hardcoding encoding/decoding of static pointers in the compiler.
 Encoding/decoding is `binary`'s business, or any other package. Patrick
 Mayer in particular was keen to minimize message size in his use cases to
 the bare minimum, say by maintaining himself a perfect hash for
 fingerprints and hence sending only a small integer across the wire.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11526#comment:11>
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