[GHC] #9233: Compiler performance regression

[GHC]

#9233: Compiler performance regression
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              Reporter:  augustss    |             Owner:
                  Type:  bug         |            Status:  new
              Priority:  low         |         Milestone:
             Component:  Compiler    |           Version:  7.8.2
            Resolution:              |          Keywords:
Differential Revisions:  Phab:D73    |  Operating System:  Windows
          Architecture:              |   Type of failure:  None/Unknown
  Unknown/Multiple                   |         Test Case:
            Difficulty:  Unknown     |          Blocking:
            Blocked By:              |
       Related Tickets:              |
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Comment (by Joachim Breitner <mail@…>):

 In [changeset:"da7cfa99def372cde32af62801a7a7e0163efad8/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="da7cfa99def372cde32af62801a7a7e0163efad8"
 Richards optCoercion improvement made test cases fail the nice way

 This was likely caused by 5e7406d9, which fixed #9233.
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9233#comment:19>
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