[GHC] #8205: the 'impossible' happened : expectJust block_order

[GHC]

#8205: the 'impossible' happened : expectJust block_order
-----------------------------+----------------------------------------
       Reporter:  erikd      |             Owner:
           Type:  bug        |            Status:  new
       Priority:  normal     |         Milestone:
      Component:  Compiler   |           Version:  7.7
       Keywords:             |  Operating System:  Linux
   Architecture:  powerpc64  |   Type of failure:  Building GHC failed
     Difficulty:  Unknown    |         Test Case:
     Blocked By:             |          Blocking:
Related Tickets:             |
-----------------------------+----------------------------------------
 Currently at commit 7e91e5bf84c2b3f461934b43911c0defb61dd9c6 and this was
 not failing to build 2 days ago.

 Compiling results in:

 {{{
 "inplace/bin/ghc-stage1" -hisuf dyn_hi -osuf  dyn_o -hcsuf dyn_hc -fPIC
 -dynamic
   -H32m -O -Werror -Wall -H64m -O0    -hide-all-packages -i -iutils/hpc/.
   -iutils/hpc/dist-install/build -iutils/hpc/dist-install/build/autogen
   -Iutils/hpc/dist-install/build -Iutils/hpc/dist-install/build/autogen
   -optP-include -optPutils/hpc/dist-install/build/autogen/cabal_macros.h
   -package array-0.4.0.2 -package base-4.7.0.0 -package containers-0.5.2.1
   -package directory-1.2.0.1 -package hpc-0.6.0.1 -XHaskell98 -XCPP
   -no-user-package-db -rtsopts -fwarn-tabs     -odir utils/hpc/dist-
 install/build
   -hidir utils/hpc/dist-install/build -stubdir utils/hpc/dist-
 install/build
   -c utils/hpc/dist-install/build/HpcParser.hs
   -o utils/hpc/dist-install/build/HpcParser.dyn_o
 ghc-stage1: panic! (the 'impossible' happened)
   (GHC version 7.7.20130830 for powerpc64-unknown-linux):
         expectJust block_order
 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8205>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler