[GHC] #8464: ghc -C crashes on Hello World

[GHC]

#8464: ghc -C crashes on Hello World
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       Reporter:  ygramoel        |             Owner:
           Type:  bug             |            Status:  new
       Priority:  normal          |         Milestone:
      Component:  Compiler        |           Version:  7.4.2
       Keywords:                  |  Operating System:  Linux
   Architecture:  x86_64 (amd64)  |   Type of failure:  Compile-time crash
     Difficulty:  Unknown         |         Test Case:
     Blocked By:                  |          Blocking:
Related Tickets:                  |
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 johan at morla:~/haskell\> cat hello.hs
 main = putStrLn "Hello, World!"
 johan at morla:~/haskell\> ghc -C hello.hs

 addFlag by -C on the commandline:
     Warning: The -fvia-C flag does nothing; it will be removed in a future
 GHC release
 ghc: panic! (the 'impossible' happened)
   (GHC version 7.4.2 for x86_64-unknown-linux):
         pipeLoop: at phase As but I wanted to stop at phase HCc

 Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8464>
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