#12367: Commit adding instances to GHC.Generics regression compiler performance -------------------------------------+------------------------------------- Reporter: bgamari | Owner: bgamari Type: bug | Status: new Priority: normal | Milestone: 8.0.2 Component: Compiler | Version: 8.0.1 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 bgamari): I should note that the problem of adding instances to core libraries degrading compiler performance is a rather general theme. It can also be found in 4e6bcc2c8134f9c1ba7d715b3206130f23c529fb, which adds a number of instances to `Data.Monoid` and regresses compiler allocations by 5 to 10%. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12367#comment:5 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler