[GHC] #7367: Optimiser / Linker Problem on amd64

[GHC]

#7367: Optimiser / Linker Problem on amd64
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        Reporter:  wurmli                   |            Owner:
            Type:  bug                      |           Status:  new
        Priority:  normal                   |        Milestone:  7.8.1
       Component:  Build System             |          Version:  7.6.1
      Resolution:                           |         Keywords:
Operating System:  Linux                    |     Architecture:  x86_64
 Type of failure:  Runtime performance bug  |  (amd64)
       Test Case:                           |       Difficulty:  Unknown
        Blocking:                           |       Blocked By:
                                            |  Related Tickets:
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Comment (by rwbarton):

 Hi Simon,

 It's at lines 731-742 and then at lines 2242-2270 in the attachment; or
 you can find it by searching for `and#` (just one occurrence in each part
 of the dump) and taking a dozen or so lines around it.

 I hope I'm not misinterpreting the core, and `let { lvl6_s1Vb ::
 GHC.Types.Bool ... } in ...` is in fact a thunk allocation.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7367#comment:5>
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