#13861: Take more advantage of STG representation invariance (follows up #9291) -------------------------------------+------------------------------------- Reporter: heisenbug | Owner: (none) Type: feature request | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by heisenbug): Replying to [comment:7 bgamari]:
It would be nice to know what the motivation for *not* using the available tag space for big families is. Surely there was a reason, even if it was just keeping implementation complexity at bay.
Probably the motivation was "we'll think about this later". Implementation complexity seems to be fairly low, see my branch (caveat: ''very WIP'') https://github.com/ggreif/ghc/tree/wip/tag-big-families -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13861#comment:9 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler