#13104: runRW# ruins join points -------------------------------------+------------------------------------- Reporter: lukemaurer | Owner: Type: bug | Status: new Priority: normal | Milestone: 8.4.1 Component: Compiler | Version: 8.1 Resolution: | Keywords: JoinPoints 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 nomeata):
That would be horribly ad-hoc. We need a better way.
*shrug* no more than the the one-shot hack we had for `build` before we came up with a proper analysis that could figure out that information. I guess the difference here is that we don’t expect random user-defined functions to have this property. The discussion of eta-expanding the argument of `runRW#` has been interrupted by comment:4, we should consider that thought again. Maybe one of the variants in comment:1 nail it. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13104#comment:10 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler