[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 rwbarton):

 Well, the data declaration does define ~3000 record accessors, each of
 which pattern matches on a record with ~3000 fields... it's easy for some
 things to become quadratic (intermediate program code size,
 strictness/demand info) even if in the end, the code size is only linear.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9675#comment:2>
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