#2251: Missing conversion rules for realToFrac causing slowdowns in Int->Double
conversions
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Reporter: dons | Owner: dons
Type: bug | Status: new
Priority: normal | Milestone:
Component: Runtime System | Version: 6.8.2
Severity: normal | Resolution:
Keywords: floating point, performance | Difficulty: Unknown
Testcase: | Architecture: Unknown
Os: Unknown |
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Changes (by simonpj):
* difficulty: => Unknown
Comment:
Thanks Don. Would you care to offer a patch? (Don't forget to include
comments that explain how big the performance improvement is; I find that
giving a little program in that comment (as you do above) is a great way
to capture the idea.)
I gather that when you say "...at least those for which GHC has
primitives" you mean that there are some important ones missing. If so,
propose away.
Simon
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2251#comment:1>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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