[GHC] #8166: Undefined references in HEAD object files

[GHC]

#8166: Undefined references in HEAD object files
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        Reporter:  joelteon      |            Owner:  jstolarek
            Type:  bug           |           Status:  new
        Priority:  high          |        Milestone:  7.8.1
       Component:  Compiler      |          Version:  7.7
      Resolution:                |         Keywords:
Operating System:  Linux         |     Architecture:  x86_64 (amd64)
 Type of failure:  None/Unknown  |       Difficulty:  Unknown
       Test Case:                |       Blocked By:
        Blocking:                |  Related Tickets:
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Comment (by rwbarton):

 After further experimentation, reverting just 388e14e2 "Merge cgTailCall
 and cgLneJump into one function" is enough to solve my problems.  And it
 looks wrong: the structure of the old code is not as described in the
 commit message: the `fun_id` that used to be passed to `cgTailCall` is not
 the same as the one in `cgIdApp`, as explained in a comment in the old
 code.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8166#comment:4>
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