[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 simonpj):

 rwbarton: thanks. It's really helpful to nail performance regressions.

 However I can't see the thunk you are referring to. Could you perhaps
 compile with `-ddump-simpl -ddump-stg` and point to the line number of the
 offending thunk allocation?  (Perhaps also give the command line you are
 using to compile, so I can see what flags you are using.)

 Ta.  Simon

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7367#comment:4>
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