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Edward Z. Yang authored
I still haven't applied the optimization to anything besides TypeMap. Summary: Signed-off-by: Edward Z. Yang <ezyang@cs.stanford.edu> Depends On: D606 Reviewers: simonpj, austin Subscribers: carter, thomie Differential Revision: https://phabricator.haskell.org/D607 GHC Trac Issues: #9960
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