[GHC] #8598: IO hack in demand analyzer gets in the way of CPR

[GHC]

#8598: IO hack in demand analyzer gets in the way of CPR
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        Reporter:  nomeata           |            Owner:
            Type:  task              |           Status:  new
        Priority:  normal            |        Milestone:
       Component:  Compiler          |          Version:  7.6.3
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:  T8598             |       Blocked By:
        Blocking:                    |  Related Tickets:
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Comment (by Joachim Breitner <mail@…>):

 In [changeset:"a31cb5b07726f5739f6eac35cbb348fcd2d6b598/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="a31cb5b07726f5739f6eac35cbb348fcd2d6b598"
 Do not forget CPR information after an IO action

 but do forget about certain divergence, if required. Fixes one part of
 ticket #8598.

 The added function (deferAfterIO) can maybe be merged with existing
 code, but given the ongoing work in the nested-cpr branch, I defer that
 work.
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8598#comment:11>
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