[GHC] #12744: Register Allocator Unit Tests

[GHC]

#12744: Register Allocator Unit Tests
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           Reporter:  tjakway        |             Owner:
               Type:  task           |            Status:  new
           Priority:  lowest         |         Milestone:
          Component:  Compiler       |           Version:  8.0.1
  (NCG)                              |
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
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 Currently the backend only has end-to-end tests and I think it would
 benefit from some unit tests starting with (for no special reason) the
 register allocator.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12744>
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