[GHC] #15124: Improve block layout for the NCG

[GHC]

#15124: Improve block layout for the NCG
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        Reporter:  AndreasK          |                Owner:  AndreasK
            Type:  task              |               Status:  new
        Priority:  normal            |            Milestone:  8.8.1
       Component:  Compiler (NCG)    |              Version:  8.2.2
      Resolution:                    |             Keywords:  CodeGen
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #8082 #14672      |  Differential Rev(s):  Phab:D4726
       Wiki Page:                    |
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Comment (by kavon):

 Dropping a recent paper on this topic that uses dynamic profiling, though
 there might be some adaptable ideas / further reading in here:
 https://arxiv.org/abs/1810.00905

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15124#comment:10>
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