#12158: ghc: panic! (the 'impossible' happened) translateConPatVec: lookup -------------------------------------+------------------------------------- Reporter: wozgonon | Owner: gkaracha Type: bug | Status: new Priority: normal | Milestone: Component: GHCi | Version: 8.0.1 Resolution: | Keywords: | PatternMatchWarnings Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple crash | Test Case: Blocked By: | Blocking: Related Tickets: #13644 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by philderbeast): I may have struck this problem too. {{{ [34 of 59] Compiling Published.Bedford ( /flare-timing/earth/test-suite-earth/Published/Bedford.hs, interpreted ) ghc: panic! (the 'impossible' happened) (GHC version 8.2.2 for x86_64-apple-darwin): translateConPatVec: lookup }}} This [[https://github.com/BlockScope/flare- timing/commit/07ea720ec98c9c756f7ed63ee7b80f574eb00a07|revision]] introduced the problem from which I was able to [[https://github.com/BlockScope/flare- timing/commit/b3963f61f97d0c70d726319260241bbedbe45f7f|workaround]] by using qualified imports. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12158#comment:14 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler