[GHC] #14152: Float exit paths out of recursive functions

[GHC]

#14152: Float exit paths out of recursive functions
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        Reporter:  nomeata           |                Owner:  (none)
            Type:  task              |               Status:  patch
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.2.1
      Resolution:                    |             Keywords:  JoinPoints
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #14137 #10918     |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by nomeata):

 Wow, thanks for the thorough code review. I am not sure how I go that
 `goAlts` thing wrong. That ought to cripple the analysis significantly!
 Maybe part of some late refactoring before the merge? Anyways, I will go
 through all your comments in detail and implement what I can, maybe this
 afternoon.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14152#comment:38>
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