Panic from -C flag

[mjo]

jumba ~ $ cat hello_world.hs

main = do
  print "Hello, World."

jumba ~ $ ghc -C hello_world.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 7.2.1 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

[igloo]

Thanks for the report.

[michalt]

This has been fixed in HEAD (probably 9c685f44e873f01403fd83209487faa64aeb47fb)

> ~/dev/ghc-clean/inplace/bin/ghc-stage2 -C Test.hs

on the commandline: Warning:
    Compiler not unregisterised, so ignoring -C
[1 of 1] Compiling Main             ( Test.hs, Test.o )
Linking Test ...