[GHC] #14338: Simplifier fails with "Simplifier ticks exhausted"

[GHC]

#14338: Simplifier fails with "Simplifier ticks exhausted"
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        Reporter:  dredozubov        |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.2.1
      Resolution:                    |             Keywords:
Operating System:  Linux             |         Architecture:  x86_64
 Type of failure:  Compile-time      |  (amd64)
  crash or panic                     |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by 4e6):

 Ugh, that's not all. I tried to build our (big) project with
 [https://git.haskell.org/ghc.git/commitdiff/33452dfc6cf891b59d63fa9fe138b18cbce4df81
 33452dfc6c Refactor the Mighty Simplifier] GHC revision and it was still
 failing. So, I returned to the test example and was able to trigger the
 issue on GHC {{{master}}} branch by [https://github.com/4e6/webapp-
 template-hs/commit/d15ef703a61fd98202e475bff60609d0dd072f50 implementing
 some methods] and slightly increasing reader size.

 **Summary**

 [https://github.com/4e6/webapp-template-hs/tree/simpl-tick-factor webapp-
 template-hs] branch ''simpl-tick-factor''\\
 Builds with {{{ghc-7.10.3}}}\\
 Fails with {{{ghc-8.2.1}}} and {{{master}}} branch\\
 [https://gist.github.com/4e6/5ef65efdb309daa373a928ec36404fd7 gist] with
 updated ''-ddump-simpl-stats'' output

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14338#comment:12>
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