[GHC] #8062: Panic "Lookup local fingerprint main:Main.main{v r6xE}"

[GHC]

#8062: Panic "Lookup local fingerprint main:Main.main{v r6xE}"
---------------------------------+------------------------------------
        Reporter:  tommd         |            Owner:
            Type:  bug           |           Status:  new
        Priority:  normal        |        Milestone:
       Component:  Compiler      |          Version:  7.6.3
      Resolution:                |         Keywords:
Operating System:  Linux         |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown  |       Difficulty:  Unknown
       Test Case:                |       Blocked By:
        Blocking:                |  Related Tickets:
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Comment (by tommd):

 A slight modification of the code yields:


 {{{
 ghc: panic! (the 'impossible' happened)
   (GHC version 7.6.3 for x86_64-unknown-linux):
         cgLookupPanic (probably invalid Core; try -dcore-lint)
     $dOneOfMyClasses{v a3yU} [lid]
     static binds for:
     local binds for:

 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8062#comment:1>
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