[GHC] #11731: Demand analysis: Thunk wrongly determined single-entry

[GHC]

#11731: Demand analysis: Thunk wrongly determined single-entry
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           Reporter:  nomeata        |             Owner:
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:
          Component:  Compiler       |           Version:  8.1
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
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 While working on #10613, I looked a bit more closely at the ticky numbers
 of single-entry thunks. In all of nofib, I found exactly one fishy result:
 A thunk, marked as single entry, but entered multiple times, in gameteb.

 I’ll write a preliminary analysis in the comments and either found a bug
 or a misunderstanding on my side.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11731>
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