#4936: Unbox sum types without fields
---------------------------------+------------------------------------------
Reporter: tibbe | Owner:
Type: feature request | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 7.0.1
Keywords: | Testcase:
Blockedby: | Difficulty:
Os: Unknown/Multiple | Blocking:
Architecture: Unknown/Multiple | Failure: None/Unknown
---------------------------------+------------------------------------------
Comment(by simonpj):
Can you give a small program that doesn't optimise as well as you'd like,
and a hand-optimised version that does better?
Concerning #2289, unboxing a pure enumeration (as you propose here) is
much easier than unboing a general sum type such as lists (which is what
Don's comment in #2289 asked for). In any case, #2289 is largly about
another issue (nested CPR).
simon
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4936#comment:2>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
_______________________________________________
Glasgow-haskell-bugs mailing list
[email protected]
http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
