[GHC] #13226: Compiler allocation regressions from top-level string literal patch

[GHC]

#13226: Compiler allocation regressions from top-level string literal patch
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           Reporter:  dfeuer         |             Owner:
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:  8.2.1
          Component:  Compiler       |           Version:  8.1
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  Compile-time
  Unknown/Multiple                   |  performance bug
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
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 d49b2bb21691892ca6ac8f2403e31f2a5e53feb3 leads to compiler allocation
 regressions in T12425 and T13035 when those tests are compiled with `-O2`.
 I took a look at T13035 tonight. `-v` reveals more terms and types.
 Interestingly, it appears that virtually all the string literals arise
 from the derived `Typeable` instance.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13226>
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