[GHC] #7965: The 'impossible' happened!

[GHC]

#7965: The 'impossible' happened!
---------------------------------+------------------------------------------
  Reporter:  adit                |          Owner:                
      Type:  bug                 |         Status:  closed        
  Priority:  normal              |      Milestone:                
 Component:  Compiler            |        Version:  7.4.1         
Resolution:  duplicate           |       Keywords:                
        Os:  MacOS X             |   Architecture:  x86_64 (amd64)
   Failure:  Compile-time crash  |     Difficulty:  Unknown       
  Testcase:                      |      Blockedby:                
  Blocking:                      |        Related:                
---------------------------------+------------------------------------------

Comment(by Fuuzetsu):

 Ironically, I had the impossible happen when installing the dependencies
 for the OP's project with GHC 7.7.20130531.

 {{{
 [1 of 1] Compiling Data.Digest.Pure.SHA ( Data/Digest/Pure/SHA.hs,
 dist/build/Data/Digest/Pure/SHA.o )
 ghc: panic! (the 'impossible' happened)
   (GHC version 7.7.20130531 for i386-unknown-linux):
         regSpill: out of spill slots!
        regs to spill = 1099
        slots left    = 677
 }}}

 Do you want a separate bug report?

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7965#comment:3>
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