#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: | -------------------------------------+------------------------------------- Comment (by simonpj):
What I was trying to say is that (3) seems to be responsible
So you think that using `VarSet`, but with an accumulator style, will be fastest of all? And yet comment:71 suggests that switching to accumulator style should not have any effect on `VarSet`. Maybe I was benchmarking the wrong thing. Anyway, yes please try! -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14880#comment:91 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler