[GHC] #876: Length is not a good consumer
GHC
cvs-ghc at haskell.org
Mon Oct 15 16:10:59 CEST 2012
#876: Length is not a good consumer
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Reporter: ariep@… | Owner: simonpj
Type: bug | Status: new
Priority: lowest | Milestone: 7.6.2
Component: libraries/base | Version: 6.5
Keywords: length | Os: Linux
Architecture: Unknown/Multiple | Failure: Runtime performance bug
Difficulty: Unknown | Testcase: list003
Blockedby: | Blocking:
Related: |
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Changes (by george.colpitts):
* architecture: x86 => Unknown/Multiple
Comment:
Replying to [comment:20 george.colpitts]:
Got it, length is not a good consumer, refers to list fusion
(deforestation) as explained in e.g. 7.17.4 of the ghc 7.4.1 Users Guide.
As this is on multiple platforms including x86, I have changed the
architecture to Multiple/Unknown
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/876#comment:21>
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