#11331: panic! TEST=tc198: lookupVers2 GHC.Stack.Types CallStack -------------------------------------+------------------------------------- Reporter: thomie | Owner: gridaphobe Type: bug | Status: new Priority: highest | Milestone: 8.0.1 Component: Compiler | Version: 7.11 Resolution: | Keywords: 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 gridaphobe): That actually makes a lot of sense, thanks! The CallStack tycon is wired- in, so the type-checker wouldn't have to load GHC.Types.Stack. The datacon is not, nor is the newer pushCallStack function we use in the desugarer, so that's why it would be loaded during desugaring. In this case we're not generating any CallStacks, so dsEvCallStack is not called, so the module is not loaded. Hrm.. What is the usual rule for loading modules that contain wired-in things? Or is it even necessary to fingerprint a wired-in thing? (By the way, how ''did'' you figure out what was triggering the load?) -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11331#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler