#14777: panic when using a function defined in terms of `error` -------------------------------------+------------------------------------- Reporter: zilinc | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.2.2 Resolution: | Keywords: Operating System: Linux | Architecture: Type of failure: Compile-time | Unknown/Multiple crash or panic | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by tdammers): I'm a bit reluctant to brush this off as "the panic doesn't happen anymore on 8.4, so we must have fixed it somehow", because it could just be that we're now optimizing differently and the panic doesn't happen in this particular case anymore, but still might pop up in other situations. So I'm wondering whether we should: a) Just write up a suitable regression test, commit that, and see if it ever triggers again in the future. b) Actively go hunting for the source of this. Upside is that we would know whether the bug has been fixed or just masked; downside is that this is potentially very time consuming. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14777#comment:25 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler