#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 simonpj): Can you make a repro case? What is this `ptrEq` thing? It looks very smelly to me. Surely at least it should be called `unsafePtrEq`. What does it do? Reboxing in worker/wrapper is very difficult to avoid. It was described in our original strictness analysis paper, and also in the paper about constructor specialisation. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13331#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler