#9279: Local wrapper function remains in final program; result = extra closure allocation -------------------------------------+------------------------------------- Reporter: simonmar | Owner: simonpj Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.8.2 Resolution: | Keywords: LateLamLift Operating System: Unknown/Multiple | Architecture: Type of failure: Runtime | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by sgraf): OK, this diff in isolation provokes Core Lint errors everywhere: {{{ *** Core Lint errors : in result of Worker Wrapper binds *** <no location info>: warning: [RHS of ww_scA1 :: Array# b_sczT] The type of this binder doesn't match the type of its RHS: ww_scA1 Binder's type: Array# b_sczT }}} So, it's pretty clear we would have to add an additional field to `MachNullAddr` (`MachNull` would probably be more appropriate) for the type it represents, similar to `LitNumber`. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9279#comment:16 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler