[GHC] #7411: Exceptions are optimized away in certain situations

[GHC]

#7411: Exceptions are optimized away in certain situations
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        Reporter:  SimonHengel       |                   Owner:
            Type:  bug               |                  Status:  new
        Priority:  high              |               Milestone:  7.12.1
       Component:  Compiler          |                 Version:  7.6.1
      Resolution:                    |                Keywords:  seq,
                                     |  deepseq, evaluate, exceptions
Operating System:  Linux             |            Architecture:  x86_64
 Type of failure:  Incorrect result  |  (amd64)
  at runtime                         |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:  #5129             |  Differential Revisions:
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Comment (by Ben Gamari <ben@…>):

 In [changeset:"15cb83d4e98c2c356bf0e3eb0df6d322755337bd/ghc"
 15cb83d4/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="15cb83d4e98c2c356bf0e3eb0df6d322755337bd"
 Add testcase for #7411
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7411#comment:6>
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