#14387: listToMaybe doesn't participate in foldr/build fusion -------------------------------------+------------------------------------- Reporter: duog | Owner: duog Type: bug | Status: patch Priority: normal | Milestone: Component: Core Libraries | Version: 8.2.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Phab:D4126 Wiki Page: | -------------------------------------+------------------------------------- Comment (by Ben Gamari <ben@…>): In [changeset:"4c06ccb71737b77a8165e888ad75417a425549dd/ghc" 4c06ccb/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="4c06ccb71737b77a8165e888ad75417a425549dd" base: Enable listToMaybe to fuse via foldr/build Test Plan: Consider whether this is a good idea. Reviewers: austin, hvr, bgamari, nomeata Reviewed By: bgamari, nomeata Subscribers: nomeata, rwbarton, thomie GHC Trac Issues: #14387 Differential Revision: https://phabricator.haskell.org/D4126 }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14387#comment:5> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler