[GHC] #5361: regSpill: out of spill slots!

[GHC]

#5361: regSpill: out of spill slots!
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    Reporter:  markwright                 |        Owner:                                        
        Type:  bug                        |       Status:  new                                   
    Priority:  highest                    |    Milestone:  7.2.1                                 
   Component:  Compiler                   |      Version:  7.1                                   
    Keywords:  regSpill panic impossible  |     Testcase:  http://hackage.haskell.org/package/SHA
   Blockedby:                             |   Difficulty:                                        
          Os:  Linux                      |     Blocking:                                        
Architecture:  x86_64 (amd64)             |      Failure:  Compile-time crash                    
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Changes (by igloo):

  * priority:  normal => highest
  * milestone:  => 7.2.1


Comment:

 Thanks for the report.

 http://hackage.haskell.org/packages/archive/SHA/1.5.0.0/SHA-1.5.0.0.tar.gz

 I can reproduce this with the "release" build and my validated 7.2 tree,
 running
 {{{
 ghc -fforce-recomp -c Data/Digest/Pure/SHA.hs -O2
 }}}
 but not with my validated HEAD.

 Perhaps there is a patch that needs to be merged.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5361#comment:1>
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