#9291: Don't reconstruct sum types if the type subtly changes -------------------------------------+------------------------------------- Reporter: schyler | Owner: Type: feature request | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.8.2 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: | -------------------------------------+------------------------------------- Comment (by osa1): CSE implementation in STG is one of the things I'm hoping to try when I have some time. I have a branch here that allows STG-to-STG plugins: https://github.com/osa1/ghc/tree/stg_plugins, this may help. We just need a version of `TrieMap` for STG expressions and then the pass should be trivial. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9291#comment:31 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler