#12007: Pattern families regression -------------------------------------+------------------------------------- Reporter: MikeIzbicki | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by mpickering): Sorry I was unclear in my last comment. The examples form the comment triggered the same kind of error in older builds but are now fixed. I can still reproduce the error you report but only when loading the file into ghci. I'm suggesting that whatever check is used to reject the now fixed examples should also reject the internally generated matching function which causes this panic. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12007#comment:6 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler