#12408: "ghc: panic! (the 'impossible' happened)" only when compiled with "-O" -------------------------------------+------------------------------------- Reporter: clinton | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple crash | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by clinton): * Attachment "ring_bug.hs" added. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12408 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler