[GHC] #9960: Performance problem with TrieMap

[GHC]

#9960: Performance problem with TrieMap
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        Reporter:  simonpj           |                   Owner:
            Type:  bug               |                  Status:  new
        Priority:  normal            |               Milestone:
       Component:  Compiler          |                 Version:  7.8.4
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  None/Unknown      |  Unknown/Multiple
      Blocked By:                    |               Test Case:
 Related Tickets:                    |                Blocking:
                                     |  Differential Revisions:  Phab:D606
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Comment (by Edward Z. Yang <ezyang@…>):

 In [changeset:"944329accebc86cc5ec989cd6b3c267d32fb6f26/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="944329accebc86cc5ec989cd6b3c267d32fb6f26"
 Newtype CoreMap and TypeMap so their keys are user-friendly.

 Summary: Signed-off-by: Edward Z. Yang <ezyang at cs.stanford.edu>

 Test Plan: validate

 Reviewers: simonpj, austin

 Subscribers: carter, thomie

 Differential Revision: https://phabricator.haskell.org/D612

 GHC Trac Issues: #9960
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9960#comment:13>
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