[GHC] #8638: Optimize by demoting "denormalized" Integers (i.e. J# -> S#)

[GHC]

#8638: Optimize by demoting "denormalized" Integers (i.e. J# -> S#)
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        Reporter:  hvr                      |            Owner:  hvr
            Type:  feature request          |           Status:  closed
        Priority:  normal                   |        Milestone:  7.8.1
       Component:  libraries (other)        |          Version:  7.7
      Resolution:  fixed                    |         Keywords:  integer-
Operating System:  Unknown/Multiple         |  gmp
 Type of failure:  Runtime performance bug  |     Architecture:
       Test Case:                           |  Unknown/Multiple
        Blocking:                           |       Difficulty:  Unknown
                                            |       Blocked By:
                                            |  Related Tickets:  #8647
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Comment (by hvr):

 Replying to [comment:13 simonpj]:
 > Thanks.  I committed two patches below.

 For convenience, here are Trac links for the two commits:

  * [301269aef0fb331bf272de4f6592eb71471a3b16/integer-gmp]
  * [3c93d7f61821345f29b9ee8a99346fa464d708a4/integer-gmp]

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8638#comment:14>
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