#9062: Role: ~# should be ~R# ------------------------------------+--------------------------------- Reporter: conal | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.8.2 Keywords: | Operating System: MacOS X Architecture: Unknown/Multiple | Type of failure: None/Unknown Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | ------------------------------------+--------------------------------- The following coercion showed up in Core. Richard Eisenberg pointed out that the `~#` should be `~R#`. {{{ <Tree N0 Int>_R -> NTCo:Sum[0] <Int>_R :: (Tree N0 Int -> Sum Int) ~# (Tree N0 Int -> Int) }}} I can dig up more information if needed. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9062 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler