[GHC] #15455: Memory usage when compiling jsaddle-dom exploded in 8.4.3

[GHC]

#15455: Memory usage when compiling jsaddle-dom exploded in 8.4.3
-------------------------------------+-------------------------------------
           Reporter:  eskimor        |             Owner:  (none)
               Type:  bug            |            Status:  new
           Priority:  high           |         Milestone:  8.6.1
          Component:  Compiler       |           Version:  8.4.3
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
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 Compiling jsaddle-dom (the JSDOM.Types module in particular) requires
 quite a lot of memory on 8.2.2 already, but with 8.4.3 I am no longer able
 to compile it at all with 8 GB of RAM. At first I thought it could be
 related to

 https://ghc.haskell.org/trac/ghc/ticket/15304

 but passing "-fno-worker-wrapper" does not seem to make much of a
 difference, therefore it might me a different cause here.

 Reproduce:

 git clone git at github.com:ghcjs/jsaddle-dom.git
 cd jsaddle-dom
 sed -i 's/? "default"/? "ghc843"/1' shell.nix
 nix-shell
 cabal new-build

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15455>
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