[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:"c4e1ccb2fe6ca7a3100653aadd83f83722669e79/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="c4e1ccb2fe6ca7a3100653aadd83f83722669e79"
 Miscellaneous improvements to TrieMap, from D608 code review.

 Summary:
     - Add SPECIALIZE pragmas for the lkG/xtG/mapG/fdG family of functions

     - Rename wrapEmptyXX to just emptyXX

     - New deBruijnize function for initializing DeBruijn elements

     - Some extra documentation

 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/D611

 GHC Trac Issues: #9960
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9960#comment:12>
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