[GHC] #10678: integer-gmp's runS seems unnecessarily expensive

[GHC]

#10678: integer-gmp's runS seems unnecessarily expensive
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        Reporter:  rwbarton          |                Owner:
            Type:  bug               |               Status:  patch
        Priority:  normal            |            Milestone:  8.0.1
       Component:  Compiler          |              Version:  7.10.1
  (CodeGen)                          |
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Runtime           |  Unknown/Multiple
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D1103
       Wiki Page:                    |
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Comment (by Ben Gamari <ben@…>):

 In [changeset:"351de169e14ad9277aaca653df4a3753c151f7bb/ghc"
 351de169/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="351de169e14ad9277aaca653df4a3753c151f7bb"
 New magic function for applying realWorld#

 Test Plan: validate

 Reviewers: goldfire, erikd, rwbarton, simonpj, austin, simonmar, hvr

 Reviewed By: simonpj

 Subscribers: simonmar, thomie

 Differential Revision: https://phabricator.haskell.org/D1103

 GHC Trac Issues: #10678
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10678#comment:16>
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