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

[GHC]

#5361: regSpill: out of spill slots!
-------------------------------------+-------------------------------------
        Reporter:  markwright        |            Owner:
            Type:  bug               |           Status:  new
        Priority:  high              |        Milestone:  7.8.1
       Component:  Compiler          |          Version:  7.1
      Resolution:                    |         Keywords:  regSpill panic
Operating System:  Linux             |  impossible
 Type of failure:  Compile-time      |     Architecture:  x86_64 (amd64)
  crash                              |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
  http://hackage.haskell.org/package/SHA|  Related Tickets:
        Blocking:                    |
-------------------------------------+-------------------------------------

Comment (by bgamari):

 Oddly enough I failed to reproduce the crash with SHA (built with `-O
 -fregs-graph`). Admittedly each way took ghc several minutes to compile
 but eventually it finished.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/5361#comment:8>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler