#1600: Optimisation: CPR the results of IO -------------------------------------+------------------------------------- Reporter: simonmar | Owner: Type: task | Status: new Priority: lowest | Milestone: 7.12.1 Component: Compiler | Version: 6.6.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Runtime | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: #8598 | Differential Revisions: -------------------------------------+------------------------------------- Comment (by akio): Replying to [comment:43 nomeata]:

I think the conclusion was that Nested CPR was not worth it. The branch is still there if someone wants to pick it up. Unassigning. Why is it not worth it?

If there is a chance that the branch can be improved to the point that it can be merged, I'm interested in trying. The lack of nested CPR has been the most frequent reason that I have to use unboxed types manually. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/1600#comment:46 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler