[GHC] #9675: Unreasonable memory usage on large data structures

[GHC]

#9675: Unreasonable memory usage on large data structures
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              Reporter:  Polarina    |            Owner:
                  Type:  bug         |           Status:  new
              Priority:  normal      |        Milestone:
             Component:  Compiler    |          Version:  7.8.3
            Resolution:              |         Keywords:
      Operating System:  Linux       |     Architecture:  x86_64 (amd64)
       Type of failure:  Compile-    |       Difficulty:  Unknown
  time performance bug               |       Blocked By:
             Test Case:              |  Related Tickets:
              Blocking:              |
Differential Revisions:              |
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Comment (by nomeata):

 A space leak seems to be hidden in `DmdAnal`. Maybe strictness annotation
 calculation for dead variables, which are then never used? I’m preparing a
 compiler perf test case so that we can track possible improvements.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9675#comment:9>
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