#14594: 2 modules / 2500LOC takes nearly 3 minutes to build -------------------------------------+------------------------------------- Reporter: schyler | Owner: dfeuer Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by simonpj): Yes, we can definitely get big type-blowup. See http://research.microsoft.com/en- us/um/people/simonpj/papers/variant-f/if.pdf, page 5. cf #5227. But that would show up clearly through the sizes reported by `-dshow- passes`. comment:3 shows some large numbers. What numbers do you see now? Do we have a standalone reproducer? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14594#comment:18 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler