ppc stage1 panic for --enable-shared

Not sure if this is expected but ghc-6.12 panics on ppc when it starts to build shared libraries:

/usr/bin/ar: creating libraries/haskeline/dist-install/build/libHShaskeline-0.6.2.1.a
"inplace/bin/ghc-stage1" -fPIC -dynamic  -H32m -O    -package-name ghc-prim-0.2.0.0 -hide-all-packages -i -ilibraries/ghc-prim/. -ilibraries/ghc-prim/dist-install/build -ilibraries/ghc-prim/dist-install/build/autogen -Ilibraries/ghc-prim/dist-install/build -Ilibraries/ghc-prim/dist-install/build/autogen -Ilibraries/ghc-prim/.    -optP-include -optPlibraries/ghc-prim/dist-install/build/autogen/cabal_macros.h -package rts-1.0  -package-name ghc-prim -XCPP -XMagicHash -XForeignFunctionInterface -XUnliftedFFITypes -XUnboxedTuples -XEmptyDataDecls -XNoImplicitPrelude -O2 -XGenerics -fno-warn-deprecated-flags     -odir libraries/ghc-prim/dist-install/build -hidir libraries/ghc-prim/dist-install/build -stubdir libraries/ghc-prim/dist-install/build -hisuf dyn_hi -osuf  dyn_o -hcsuf dyn_hc -c libraries/ghc-prim/./GHC/Generics.hs -o libraries/ghc-prim/dist-install/build/GHC/Generics.dyn_o
ghc-stage1: panic! (the 'impossible' happened)
  (GHC version 6.12.0.20091010 for powerpc-unknown-linux):
        getRegisterReg-memory PicBaseReg

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

make[1]: *** [libraries/ghc-prim/dist-install/build/GHC/Generics.dyn_o] Error 1
make: *** [all] Error 2

so reporting it here.

Trac metadata

Trac field	Value
Version	6.12.1 RC1
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system	Linux
Architecture