#13236: Improve floating for join points -------------------------------------+------------------------------------- Reporter: simonpj | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.1 Resolution: | Keywords: JoinPoints 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 simonpj): Question 2: I'm not saying that we never have a candidate MFE that has a join point as a free var. I AM saying that in that situation we should not float the MFE. How could it possibly be beneficial? Floating is mainly to get things outside a value lambda -- but that's invalid there's a free join point. Or to top level; ditto. Case closed. Can you give an example where let-binding an MFE (as a join point of course) with a free variable is beneficial? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13236#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler