#13331: Worker/wrapper can lead to sharing failure -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.4.1 Component: Compiler | Version: 8.1 Resolution: | Keywords: 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 dfeuer): Ah, I see better now. My tiny list example can probably be fixed relatively easily using a "just pass both" approach, but my real-life example involves some knowledge the compiler doesn't have: that we tend to have the box already and/or we end up needing the box, and that the cost of losing sharing here is higher than it may look. That application dependence seems to argue in favor of a pragma-based solution. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13331#comment:7 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler