[GHC] #15168: GHC HEAD crashes on Windows 64 after the SRT overhaul (May 16, 2018 and newer)

[GHC]

#15168: GHC HEAD crashes on Windows 64 after the SRT overhaul (May 16, 2018 and
newer)
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        Reporter:  awson             |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  highest           |            Milestone:  8.6.1
       Component:  Compiler          |              Version:  8.5
      Resolution:                    |             Keywords:
Operating System:  Windows           |         Architecture:  x86_64
 Type of failure:  Compile-time      |  (amd64)
  crash or panic                     |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by awson):

 Have done this for `main = putStrLn "Hello, world"`.

 With `-A` less than `8m` it segfaults, with `8m` and `9m` compiles
 successfully, from `10m` to `15m` spits `Evaluated a CAF that was GC'd!`
 internal error, on `16m` and above compiles successfully.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15168#comment:8>
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