[GHC] #7821: PPC cross-compile impossible happened

[GHC]

#7821: PPC cross-compile impossible happened
---------------------------------+------------------------------------------
    Reporter:  matts             |       Owner:                     
        Type:  bug               |      Status:  new                
    Priority:  normal            |   Milestone:                     
   Component:  Compiler          |     Version:  7.7                
    Keywords:                    |          Os:  Linux              
Architecture:  Unknown/Multiple  |     Failure:  Building GHC failed
  Difficulty:  Unknown           |    Testcase:                     
   Blockedby:                    |    Blocking:                     
     Related:                    |  
---------------------------------+------------------------------------------
Changes (by igloo):

  * difficulty:  => Unknown


Old description:

> While trying to build a powerpc targetted GHC cross compiler from current
> GIT head version I saw the impossible happened message below:
>
> echo 'export LD_LIBRARY_PATH=":$LD_LIBRARY_PATH"' >> inplace/bin/genapply
> echo 'exec "$executablename" ${1+"$@"}'                     >>
> inplace/bin/genapply
> chmod +x
> inplace/bin/genapply
> "inplace/bin/ghc-stage1" -hisuf hi -osuf  o -hcsuf hc -static  -H64m -O0
> -fasm    -package-name
> ghc-prim-0.3.1.0 -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 -I
> libraries/ghc-prim/dist-install/build/autogen -Ilibraries/ghc-prim/.
> -optP-include -optPlibra
> ries/ghc-prim/dist-install/build/autogen/cabal_macros.h -package rts-1.0
> -package-name ghc-prim
> -XHaskell98 -XCPP -XMagicHash -XForeignFunctionInterface
> -XUnliftedFFITypes -XUnboxedTuples -XEm
> ptyDataDecls -XNoImplicitPrelude -O -fasm  -no-user-package-db -rtsopts
> -odir libraries/ghc
> -prim/dist-install/build -hidir libraries/ghc-prim/dist-install/build
> -stubdir libraries/ghc-pri
> m/dist-install/build  -dynamic-too -c libraries/ghc-prim/./GHC/Classes.hs
> -o libraries/ghc-prim/
> dist-install/build/GHC/Classes.o -dyno libraries/ghc-prim/dist-
> install/build/GHC/Classes.dyn_o
> ghc-stage1: panic! (the 'impossible' happened)
>   (GHC version 7.7.20130407 for powerpc-e500v2-linux):
>         allocateRegsAndSpill: Cannot read from uninitialized register
>     %vI_nvZF
>
> Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug
>
> make[1]: *** [libraries/ghc-prim/dist-install/build/GHC/Classes.o] Error
> 1
> make[1]: *** Deleting file `libraries/ghc-prim/dist-
> install/build/GHC/Classes.o'

New description:

 While trying to build a powerpc targetted GHC cross compiler from current
 GIT head version I saw the impossible happened message below:
 {{{
 echo 'export LD_LIBRARY_PATH=":$LD_LIBRARY_PATH"' >> inplace/bin/genapply
 echo 'exec "$executablename" ${1+"$@"}'                     >>
 inplace/bin/genapply
 chmod +x
 inplace/bin/genapply
 "inplace/bin/ghc-stage1" -hisuf hi -osuf  o -hcsuf hc -static  -H64m -O0
 -fasm    -package-name
 ghc-prim-0.3.1.0 -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 -I
 libraries/ghc-prim/dist-install/build/autogen -Ilibraries/ghc-prim/.
 -optP-include -optPlibra
 ries/ghc-prim/dist-install/build/autogen/cabal_macros.h -package rts-1.0
 -package-name ghc-prim
 -XHaskell98 -XCPP -XMagicHash -XForeignFunctionInterface
 -XUnliftedFFITypes -XUnboxedTuples -XEm
 ptyDataDecls -XNoImplicitPrelude -O -fasm  -no-user-package-db -rtsopts
 -odir libraries/ghc
 -prim/dist-install/build -hidir libraries/ghc-prim/dist-install/build
 -stubdir libraries/ghc-pri
 m/dist-install/build  -dynamic-too -c libraries/ghc-prim/./GHC/Classes.hs
 -o libraries/ghc-prim/
 dist-install/build/GHC/Classes.o -dyno libraries/ghc-prim/dist-
 install/build/GHC/Classes.dyn_o
 ghc-stage1: panic! (the 'impossible' happened)
   (GHC version 7.7.20130407 for powerpc-e500v2-linux):
         allocateRegsAndSpill: Cannot read from uninitialized register
     %vI_nvZF

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

 make[1]: *** [libraries/ghc-prim/dist-install/build/GHC/Classes.o] Error 1
 make[1]: *** Deleting file `libraries/ghc-prim/dist-
 install/build/GHC/Classes.o'
 }}}

--

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7821#comment:2>
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