#13766: Confusing "redundant pattern match" in 8.0, no warning at all in 8.2 -------------------------------------+------------------------------------- Reporter: edsko | Owner: (none) 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: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by ezyang): This looks related to some changes to inaccessibility which happened for GHC 8.2. There's more context at #12466, #11066 and #12694, and possibly more (do a search for "inaccessible") -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13766#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler