#14998: Sort out the strictness mess for exceptions -------------------------------------+------------------------------------- Reporter: simonpj | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.4.3 Component: Compiler | Version: 8.2.2 Resolution: | Keywords: Exceptions 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): OK, well, let's declare victory on Item 4. Maybe it was the `mask#` primops (which still have `strictArgDmd` that were delivering the payoff. Next up: item 2. Could you remove the ! from the defns of `GHC.IO.catchException` and `catchAny`, and see if that has any perf impact? (And validate.) I think they are unnecessary. Next: item 1. Could you make `catchRetry#` have `lazyApply1Dmd` like `catch#` and see if that has any effect? If not, let's switch it. Thanks -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14998#comment:5 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler