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  • #9781

Closed
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Opened Nov 07, 2014 by David Feuer@treeowl
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Make list monad operations fuse

We like to think that do {x <- xs; y <- f x ; return g y} is the same as [g y | x <- xs, y <- f x], but the former does not fuse nearly as well. Let's fix that.

Trac metadata
Trac field Value
Version 7.9
Type Task
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component Core Libraries
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CC core-libraries-committee@haskell.org
Operating system
Architecture

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7.10.1
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5
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core libraries P::normal runtime perf task Trac import
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Reference: ghc/ghc#9781