#14461: Reuse free variable lists through nested closures -------------------------------------+------------------------------------- Reporter: tdammers | Owner: alexbiehl Type: task | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.2.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: 7258 | Differential Rev(s): Wiki Page: NestedClosures | -------------------------------------+------------------------------------- Comment (by alexbiehl): Transforming the free variables in the codegen (as done in the mentioned patch) remains hairy. I have another plan: I will introduce a new `data GenStgFreeVar occ = StgFreeVar occ [occ]` type and calculate the sharing in CoreToStg as we have all the relevant data available and in good shape anyway. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14461#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler