#11172: Turning on optimisations produces SEGFAULT or Impossible case alternative -------------------------------------+------------------------------------- Reporter: nh2 | Owner: Type: bug | Status: new Priority: normal | Milestone: 8.0.1 Component: Compiler | Version: 7.10.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: Runtime crash | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by nh2): I managed to reproduce the `segmentation fault` now! See branch `segfault`, https://github.com/fpco/impossible-case- alternative-repro/tree/segfault (Note that that branch is only for GHC <= 7.10, I'd have to make the same adjustments as for the other repro to make it work on GHC 8 HEAD, if that is desired.) -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11172#comment:11 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler