[GHC] #11382: Optimize Data.Char
GHC
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Fri Jan 8 13:49:09 UTC 2016
#11382: Optimize Data.Char
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Reporter: bgamari | Owner:
Type: bug | Status: new
Priority: normal | Milestone: 8.2.1
Component: Core | Version: 7.10.3
Libraries |
Keywords: | Operating System: Unknown/Multiple
Architecture: | Type of failure: Runtime
Unknown/Multiple | performance bug
Test Case: | Blocked By:
Blocking: | Related Tickets:
Differential Rev(s): | Wiki Page:
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Many of the predicates in `Data.Char` do full Unicode category lookups
which turns out to be quite expensive. Ideally we would handle some of the
more common ASCII characters with cheaper tests before falling back to the
full Unicode treatment.
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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11382>
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