#15176: Superclass `Monad m =>` makes program run 100 times slower -------------------------------------+------------------------------------- Reporter: danilo2 | Owner: osa1 Type: bug | Status: new Priority: highest | Milestone: 8.8.1 Component: Compiler | Version: 8.4.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Runtime | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by osa1): * Attachment "patch.ticky" added. Ticky output of program in comment:10 with Monad m -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15176 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler