[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)
-------------------------------------+-------------------------------------
        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:                    |
-------------------------------------+-------------------------------------

Comment (by Phyx-):

 I am unable to reproduce the complete failure scenario @awson is seeing.

 {{{
 Tamar at Pinky MINGW64 ~/ghc
 $ inplace/bin/ghc-stage2.exe --version
 The Glorious Glasgow Haskell Compilation System, version 8.5.20180521

 Tamar at Pinky MINGW64 ~/ghc
 $ inplace/bin/ghc-stage2.exe -fforce-recomp hello.hs
 [1 of 1] Compiling Main             ( hello.hs, hello.o )
 Linking hello.exe ...

 Tamar at Pinky MINGW64 ~/ghc
 $ ./hello.exe
 Hello World
 }}}

 That said, the bindisttest does fail with:

 {{{
 ghc-cabal.exe:
 'E:/ghc-
 dev/msys64/home/Tamar/ghc/bindistprep/ghc-8.5.20180521/bin/ghc.exe'
 exited with an error:
 ghc.exe: internal error: evacuate: strange closure type 912
 (GHC version 8.5.20180521 for x86_64_unknown_mingw32)
 Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug
 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15168#comment:5>
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