#13432: ghc: panic! (the 'impossible' happened) -------------------------------------+------------------------------------- Reporter: brikken | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.2 Keywords: | Operating System: Windows Architecture: x86_64 | Type of failure: Compile-time (amd64) | crash or panic Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- **Command** {{{ ghc -c prettystub.hs }}} **Result** {{{ ghc: panic! (the 'impossible' happened) (GHC version 8.0.2 for x86_64-unknown-mingw32): initTc: unsolved constraints WC {wc_insol = [W] hexEscape_a2yj :: t_a2yi[tau:1] (CHoleCan: hexEscape)} Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13432 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler