[GHC] #11195: New pattern-match check can be non-performant

[GHC]

#11195: New pattern-match check can be non-performant
-------------------------------------+-------------------------------------
        Reporter:  goldfire          |                Owner:
            Type:  bug               |               Status:  new
        Priority:  highest           |            Milestone:  8.2.1
       Component:  Compiler          |              Version:  7.11
      Resolution:                    |             Keywords:
                                     |  PatternMatchWarnings
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  crash                              |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D1676
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by gkaracha):

 I think that commit 28f951edfe50ea5182065144340061ec326781f5 addresses
 this completely:
 {{{
 Author: George Karachalias <george.karachalias at gmail.com>
 Date:   Wed Feb 3 19:06:45 2016 +0100

     Overhaul the Overhauled Pattern Match Checker
 }}}
 Hence, I am closing this. Feel free to reopen in case performance issues
 arise again due to pattern match checking.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11195#comment:10>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler