#9655: Do not UNPACK strict fields that are very wide -------------------------------------+------------------------------------- Reporter: simonpj | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.8.3 Resolution: | Keywords: Operating System: | Architecture: Unknown/Multiple Unknown/Multiple | Difficulty: Unknown Type of failure: | Blocked By: None/Unknown | Related Tickets: Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Comment (by tibbe):
should GHC auto-unpack a strict argument of a data constructor, if the argument type is a very wide product type?
I'm confused. I don't think GHC does unpack strict fields unless either 1) it's of pointer size or 2) you use `-funbox-strict-fields` or 3) you use `UNPACK`. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9655#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler