#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 rwbarton): Replying to [comment:8 schyler]:
@rwbarton, does that still make it simple for the CSE to eliminate extra branches?
Good question. I don't think it would get CSEd at the Core level, but hopefully it would in a later pass (STG or Cmm). -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9291#comment:12 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler