#10858: Smaller generated Ord instances -------------------------------------+------------------------------------- Reporter: nomeata | Owner: Type: task | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: #9557 | Differential Revisions: -------------------------------------+------------------------------------- Comment (by simonpj): That `Note` looks plausible but ONLY if you recursively use `(<)` in the implementation of `(<)`. But in the code you give above for `Ord` on `ImportDecl` we seem to call `compare` recursively when implementing `(<)`. So we are taking the hit described in the `Note`, but blowing up the code much more than necessary! -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10858#comment:11 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler