#14295: tagToEnum# leads to some silly closures -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.4.1 Component: Compiler | Version: 8.2.1 Resolution: | Keywords: datacon-tags 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 simonpj):
What makes it delicate?
Just that `CorePrep` is trying to establish some tricky output invariants (about ANF) etc, and is ''not'' a simplification engine. If there are zero knock-on transformations then that's fine, but that's a delicate situation all by itself. Anyway, I'm not opposed, just doubtful about the cost/benefit tradeoff. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14295#comment:13 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler