[GHC] #13604: ghci no longer loads dynamic .o files by default if they were built with -O

[GHC]

#13604: ghci no longer loads dynamic .o files by default if they were built with -O
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        Reporter:  George            |                Owner:  dfeuer
            Type:  bug               |               Status:  patch
        Priority:  highest           |            Milestone:  8.2.2
       Component:  Compiler          |              Version:  8.2.1-rc1
      Resolution:                    |             Keywords:
                                     |  RecompilationCheck
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Runtime           |  Unknown/Multiple
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D4123
       Wiki Page:                    |
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Comment (by dfeuer):

 It took me a bit to understand enough about how the fingerprinting process
 worked to do this right. I ''think'' the differential I just put up should
 fix the optimization issue. If others agree that's the right approach, it
 can easily be applied to `-fhpc` as well.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13604#comment:37>
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