[GHC] #15570: Core transformations generate bad indexCharOffAddr# call

[GHC]

#15570: Core transformations generate bad indexCharOffAddr# call
-------------------------------------+-------------------------------------
        Reporter:  alpmestan         |                Owner:  alpmestan
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.6.1
       Component:  Compiler          |              Version:  8.5
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #15286            |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by simonpj):

 >  #15286 is now standing in the way of really addressing the present
 ticket.

 Well #15286 ''must'' be solved; compiling `Num` with `-00` is not
 acceptable.

 But there's another bug: there should not be a linker error with the code
 above.  Let's fix that too.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15570#comment:12>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler