[GHC] #13429: Optimizer produces Core with an infinite <<loop>>

[GHC]

#13429: Optimizer produces Core with an infinite <<loop>>
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        Reporter:  lehins            |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  7.10.4
       Component:  Compiler          |              Version:  8.0.2
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Incorrect result  |  Unknown/Multiple
  at runtime                         |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by RyanGlScott):

 I've verified that commit 2effe18ab51d66474724d38b20e49cc1b8738f60 (The
 Early Inline Patch) was what fixed this.

 Somewhat related: the
 [https://ghc.haskell.org/trac/ghc/changeset/be8122ab72aeec509b5ce4b4f05fbc5cdb77bf5a/ghc
 commit] which added this program as a regression test isn't actually
 //running// the compiled program, so it's not verifying if it's looping or
 not. Surely this isn't intended?

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13429#comment:8>
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