#9701: GADTs not specialized properly -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.9 Resolution: | Keywords: Operating System: | Architecture: Unknown/Multiple Unknown/Multiple | Difficulty: Unknown Type of failure: Runtime | Blocked By: performance bug | Related Tickets: Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Comment (by dfeuer): I just realized that you might not find that example as convincing as this one: {{{#!hs data Silly a where Silly :: Num a => a -> Silly a double :: Int -> Int double n = n + n oops :: Silly Int -> Int oops (Silly x) = double x }}} Now if `double` gets inlined, it will use the `Num` dictionary from `Silly`, but if it's not inlined, it will use the usual one. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9701#comment:10 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler