#5642: Deriving Generic of a big type takes a long time and lots of space
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Reporter: basvandijk | Owner: dimitris
Type: bug | Status: new
Priority: high | Milestone: 7.4.1
Component: Compiler | Version: 7.3
Keywords: | Os: Unknown/Multiple
Architecture: Unknown/Multiple | Failure: Compile-time performance bug
Difficulty: Unknown | Testcase:
Blockedby: | Blocking:
Related: |
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Comment(by dreixel):
I had the impression Dimitrios had already made some progress on this, and
we were just waiting to turn it into a perf test for the testsuite before
closing this ticket. I think the resulting performance is not great, but
it's good enough for most cases, including ASTs with 100 or so
constructors.
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5642#comment:9>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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