#12718: Segmentation fault, runtime representation polymorphism -------------------------------------+------------------------------------- Reporter: Iceland_jack | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: GHCi crash | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by Simon Peyton Jones <simonpj@…>): In [changeset:"eefe86d96d40697707c3ddfb9973a30a1897241f/ghc" eefe86d/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="eefe86d96d40697707c3ddfb9973a30a1897241f" Allow levity-polymorpic arrows This cures Trac #12668 (and cures the Lint errors you get from Trac #12718). The idea is explained in Note [Levity polymorphism], in Kind.hs }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12718#comment:2> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler