#7534: allocateRegsAndSpill: Cannot read from uninitialized register
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Reporter:  erikd                |          Owner:           
    Type:  bug                  |         Status:  new      
Priority:  normal               |      Component:  Compiler 
 Version:  7.7                  |       Keywords:           
      Os:  Linux                |   Architecture:  powerpc64
 Failure:  Building GHC failed  |      Blockedby:           
Blocking:                       |        Related:           
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Comment(by erikd):

 From `compiler/nativeGen/RegAlloc/Linear/Main.hs`:

 {{{
     -- NOTE: if the input to the NCG contains some
     -- unreachable blocks with junk code, this panic
     -- might be triggered.  Make sure you only feed
     -- sensible code into the NCG.  In CmmPipeline we
     -- call removeUnreachableBlocks at the end for this
     -- reason.
 }}}

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7534#comment:1>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler

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