#14880: GHC panic: updateRole -------------------------------------+------------------------------------- Reporter: RyanGlScott | Owner: goldfire Type: bug | Status: new Priority: normal | Milestone: 8.8.1 Component: Compiler (Type | Version: 8.2.2 checker) | Resolution: | Keywords: TypeInType Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple crash or panic | Test Case: Blocked By: | Blocking: Related Tickets: #15076 | Differential Rev(s): Phab:D4769, Wiki Page: | Phab:D5141 -------------------------------------+------------------------------------- Comment (by goldfire): We're in complete agreement. I was phrasing things strangely, in that I was considering variables to have proper identities, not just uniques. That is, the variables in the kind of a free var might, incidentally, have a doppelganger in the bound-var set, but that's just a doppelgangers, not an appearance of the variable we're processing. In any case, I agree with comment:125. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14880#comment:126 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler