#9630: compile-time performance regression (probably due to Generics) -------------------------------------+------------------------------------- Reporter: hvr | Owner: Type: bug | Status: new Priority: high | Milestone: 8.2.1 Component: Compiler | Version: 7.9 Resolution: | Keywords: deriving- | perf, Generics Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: #9583, #10293 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by simonmar): In case any more motivation is needed here: we have had to stop using `deriving Generic` and find alternative methods due to this problem, so it's an actual blocker for some use cases of `deriving Generic`. Do we know what the problem is? Is it fixable? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9630#comment:36 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler