[GHC] #9303: O2: (GHC version 7.8.3 for x86_64-unknown-linux): allocateRegsAndSpill: Cannot read from uninitialized register %vI_s1Mp

[GHC]

#9303: O2: (GHC version 7.8.3 for x86_64-unknown-linux): allocateRegsAndSpill:
Cannot read from uninitialized register %vI_s1Mp
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        Reporter:  slyfox              |            Owner:
            Type:  bug                 |           Status:  new
        Priority:  normal              |        Milestone:
       Component:  Compiler (NCG)      |          Version:  7.8.3
      Resolution:                      |         Keywords:
Operating System:  Unknown/Multiple    |     Architecture:  x86_64 (amd64)
 Type of failure:  Compile-time crash  |       Difficulty:  Unknown
       Test Case:                      |       Blocked By:
        Blocking:                      |  Related Tickets:
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Comment (by slyfox):

 The same for -HEAD:
 {{{
   (GHC version 7.9.20140710 for x86_64-unknown-linux):
         allocateRegsAndSpill: Cannot read from uninitialized register
     %vI_s12v
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9303#comment:1>
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