[GHC] #13604: regression in ghc 8.2.1-rc1 (8.2.0.20170404)

[GHC]

#13604: regression in ghc 8.2.1-rc1 (8.2.0.20170404)
-------------------------------------+-------------------------------------
        Reporter:  George            |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  GHCi              |              Version:  8.2.1-rc1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Runtime           |  Unknown/Multiple
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by George):

 Suppose I wanted ghci for optimization, specifically -O2, how would I
 specify that? See  #13002 as mentioned above. Assuming I could specify it
 then ghci would simply load the compiled file, right?

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13604#comment:8>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler