> for me personally Bool would be even better To get a Bool you can use wrappers defined in the same module, e.g.:
geInt64# :: Int64# -> Int64# -> Bool geInt64# a b = tagToEnum# (int64ToInt# (geInt64## a b)) Looking at the implementation of this wrapper I think Luite has a point - to get a Bool it has to be caste to a machine supported Int#. So I think that it would make sense to have these primops retunr Int# instead of Int64#, but I'd like to hear what others have to say. Janek ----- Oryginalna wiadomość ----- Od: "Luite Stegeman" <stege...@gmail.com> Do: "ghc-devs" <ghc-devs@haskell.org> Wysłane: czwartek, 15 sierpień 2013 16:36:59 Temat: Change return type for Int64# and Word64# comparisons? Hi all, With the recent change of comparison primops to return Int# instead of Bool, the 64 bit operations were also changed, to return Int64# or Word64#: https://github.com/jstolarek/packages-ghc-prim/commit/07920f03d76dbaec64e3829404d332af22d744fe It seems a bit wasteful to me to return a value bigger than a machine word for just a boolean. Changing the type to Int# would make the same optimizations possible as for the native-sized primops (though since they map to JavaScript bools in GHCJS). thoughts? luite _______________________________________________ ghc-devs mailing list ghc-devs@haskell.org http://www.haskell.org/mailman/listinfo/ghc-devs _______________________________________________ ghc-devs mailing list ghc-devs@haskell.org http://www.haskell.org/mailman/listinfo/ghc-devs
