#13242: Panic "StgCmmEnv: variable not found" with ApplicativeDo and ExistentialQuantification -------------------------------------+------------------------------------- Reporter: ljli | Owner: simonmar Type: bug | Status: new Priority: highest | Milestone: 8.0.3 Component: Compiler | Version: 8.1 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 simonmar): smaller example: {{{ data A = forall a. A a st :: IO () st = do A _ <- pure (A True) x <- return 1 pure () }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13242#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler