#2439: Missed optimisation with dictionaries and loops
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Reporter: rl | Owner: simonpj
Type: bug | Status: new
Priority: normal | Milestone: 6.12 branch
Component: Compiler | Version: 6.9
Resolution: | Keywords:
Difficulty: Unknown | Os: Unknown/Multiple
Testcase: | Architecture: Unknown/Multiple
Failure: Runtime performance bug |
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Comment (by simonpj):
I think the underling issue hasn't changed. The only difference is that
before we inlined the method selector and now we don't. (Deliberately --
little is gained by doing so.) So it's more or less the same with new and
old inliner.
I think that strict dictionaries are still the answer here.
Simon
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2439#comment:7>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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