#10105: ghc panic Simplifier ticks exhausted when trying UnfoldingDone x_alB -------------------------------------+------------------------------------- Reporter: dramforever | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.1-rc2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: None/Unknown | Unknown/Multiple Blocked By: | Test Case: Related Tickets: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by dramforever): Oh yes. Actually I knew that before but in this case it just says "panic" rather than looping so I thought it was irrlevant. Maybe fix the docs? Also an idea: Maybe we can do positivity analysis on data types just like Agda. We don't have to refuse it, just add a check when compiling functions that deal with it (and maybe a warning?) -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10105#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler