#15703: Significant compilation time blowup when refactoring singletons-heavy code -------------------------------------+------------------------------------- Reporter: RyanGlScott | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.8.1 Component: Compiler | Version: 8.6.1 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 goldfire): It might be worth checking whether `optCoercion` is helping or hurting: you can check the size of the input to the function and the size of the output. The output shouldn't be bigger than the input! -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15703#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler