[GHC] #11318: Data.Text.length allocates one closure per character

[GHC]

#11318: Data.Text.length allocates one closure per character
-------------------------------------+-------------------------------------
        Reporter:  bgamari           |                Owner:
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.10.3
      Resolution:  invalid           |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Runtime           |  Unknown/Multiple
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #11284            |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by Ben Gamari <ben@…>):

 In [changeset:"933abfa7ec88bd91e60a62e51bb2f9a068d379f1/ghc"
 933abfa7/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="933abfa7ec88bd91e60a62e51bb2f9a068d379f1"
 rel-notes: Add note about UndecidableSuperClasses and #11762

 Test Plan: Read it

 Reviewers: austin, kosmikus

 Reviewed By: kosmikus

 Subscribers: thomie

 Differential Revision: https://phabricator.haskell.org/D2111

 GHC Trac Issues: #11318, #11762
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11318#comment:2>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler