[GHC] #5129: "evaluate" optimized away

[GHC]

#5129: "evaluate" optimized away
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        Reporter:  dons              |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.0.3
      Resolution:                    |             Keywords:  seq, evaluate
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Incorrect result  |  Unknown/Multiple
  at runtime                         |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #13930            |  Differential Rev(s):  Phab:D615
       Wiki Page:                    |
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Comment (by Ömer Sinan Ağacan <omeragacan@…>):

 In [changeset:"5a1ad231fc871f27f2811ae46285a79573d8dfae/ghc"
 5a1ad231/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="5a1ad231fc871f27f2811ae46285a79573d8dfae"
 Update test for #5129:

 Make sure it runs with --fast validate with correct optimisation
 settings (-O1 or above) so that it actually tests the bug.

 Because the bug is in the simplifier running it with -O0 doesn't
 test it.
 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/5129#comment:28>
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