[GHC] #8272: testing if SpLim=$rbp and Sp=$rsp changed performance at all

[GHC]

#8272: testing if SpLim=$rbp and Sp=$rsp changed performance at all
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        Reporter:  carter            |            Owner:  carter
            Type:  task              |           Status:  new
        Priority:  normal            |        Milestone:  7.10.1
       Component:  Compiler          |          Version:  7.7
      Resolution:                    |         Keywords:  callingConvention
Operating System:  Unknown/Multiple  |     Architecture:  x86_64 (amd64)
 Type of failure:  None/Unknown      |       Difficulty:  Rocket Science
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:
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Comment (by schyler):

 It's possible this could fix #8048 or at least allow better/smarter code
 to be generated for spills.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8272#comment:7>
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