#9291: Don't reconstruct sum types if the type subtly changes ----------------------------+---------------------------------------------- Reporter: schyler | Owner: Type: feature | Status: new request | Milestone: Priority: normal | Version: 7.8.2 Component: | Keywords: Compiler | Architecture: Unknown/Multiple Resolution: | Difficulty: Moderate (less than a day) Operating System: | Blocked By: Unknown/Multiple | Related Tickets: Type of failure: | None/Unknown | Test Case: | Blocking: | ----------------------------+---------------------------------------------- Comment (by schyler): Why would the compiler inserting unsafeCoerce be bad? I would have thought that's something the compiler should be able to do a lot of, given we have such a better type system than other languages which can't prove it's safe. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9291#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler