[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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Changes (by nomeata):

 * status:  new => patch


Comment:

 Anyways, this is ready for review, either on
 https://phabricator.haskell.org/D3903 or in git, branch `wip/T14152`. The
 latter has the advantage that the basic patch can be inspected independent
 of the on-the-fly-CSE addition (which maybe be nice due to smaller Core,
 but may not be worth the slight complication of the code).

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14152#comment:24>
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