#915: Implement list fusion using streams instead of foldr/build ----------------------------+---------------------------------------------- Reporter: simonpj | Owner: Type: task | Status: closed Priority: normal | Milestone: 7.6.1 Component: | Version: 6.8 libraries/base | Keywords: fusion Resolution: invalid | Architecture: Unknown/Multiple Operating System: | Difficulty: Project (more than a week) Unknown/Multiple | Blocked By: Type of failure: | Related Tickets: None/Unknown | Test Case: N/A | Blocking: | ----------------------------+---------------------------------------------- Comment (by duncan): We do now have a solution, however the current implementation relies on HERMIT. See: ''The HERMIT in the Stream -- Fusing Stream Fusion’s concatMap'' by Andrew Farmer, Christian Höner zu Sierdissen and Andy Gill. http://ittc.ku.edu/~afarmer/concatmap-pepm14.pdf See also this summary/commentary: http://blog.ezyang.com/2014/01/pepm14 -the-hermit-in-the-stream/ -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/915#comment:46 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler