[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
----------------------------+----------------------------------------------
        Reporter:  carter   |            Owner:  carter
            Type:  task     |           Status:  new
        Priority:  normal   |        Milestone:  7.10.1
       Component:           |          Version:  7.7
  Compiler                  |         Keywords:  callingConvention
      Resolution:           |     Architecture:  x86_64 (amd64)
Operating System:           |       Difficulty:  Project (more than a week)
  Unknown/Multiple          |       Blocked By:
 Type of failure:           |  Related Tickets:
  None/Unknown              |
       Test Case:           |
        Blocking:           |
----------------------------+----------------------------------------------

Comment (by carter):

 huh. that doesn't rule out experimenting with it, but definitely does make
 any such experimentation a bit more subtle. We'd basically need to make
 sure that theres enough scratch space on the current GHC stack segment for
 the register spills.  i believe on sound way to conservatively track that
 is to compute the maximum size used  by live variables in a function body,
 though with some extra adjustments roughly, right?

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8272#comment:5>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler