#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:9 heisenbug]:
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 The last checkin does bootstrap GHC and seems to do well not he test side. Code still is not as pretty as I want it, but I shall clean it up in the next days. Can somebody do a perf evaluation with it? Thanks! -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13861#comment:10 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler