#11523: Infinite Loop when mixing UndecidableSuperClasses and the class/instance constraint synonym trick. -------------------------------------+------------------------------------- Reporter: ekmett | Owner: Type: bug | Status: new Priority: highest | Milestone: 8.0.1 Component: Compiler (Type | Version: 8.0.1-rc1 checker) | Keywords: Resolution: | UndecidableSuperClasses Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: GHC rejects | Test Case: valid program | polykinds/T11523 Blocked By: | Blocking: Related Tickets: #11480 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by ekmett): * status: closed => new * resolution: fixed => Comment: The example I attached after the february 8th patch still doesn't compile. The `ctev_dest` crash was masking a completely different blowup. That said, it may not be for this issue, but for something else. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11523#comment:12 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler