#10844: CallStack should not be inlined -------------------------------------+------------------------------------- Reporter: nomeata | Owner: gridaphobe Type: task | Status: patch Priority: normal | Milestone: Component: Compiler | Version: 7.10.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Phab:D1259 Wiki Page: | -------------------------------------+------------------------------------- Comment (by simonpj): The "expandable" thing means that it's ok to duplicate the let-bound thing if it makes a rule match. In this case it's the string-append rule -- and that rule is probably worth firing even if it does mean a bit of string duplication. (Of course it might also mean that the top-level binding ends up un-referenced in the end, so there's no duplication. But the worst-case is a bit of string duplication which is probably ok. I don't understand why that wasn't happening. And if it's not happening, maybe other similar Good Things are not happening, all unseen. So fixing this might fix other unreported bugs. Thanks for looking into it. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10844#comment:28 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler