#12711: GHC Internal error, unboxed sums -------------------------------------+------------------------------------- Reporter: Iceland_jack | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.1 Keywords: UnboxedSums | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- {{{ $ ./ghc-stage2 -ignore-dot-ghci --interactive GHCi, version 8.1.20160930: http://www.haskell.org/ghc/ :? for help Prelude> :set -XUnboxedSums Prelude> :kind (# _ | _ #) <interactive>:1:4: error: • GHC internal error: ‘_’ is not in scope during type checking, but it passed the renamer tcl_env of environment: [] • In the type ‘(# _ | _ #)’ }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12711 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler