On Mon, Mar 22, 2021 at 12:39:28PM +0800, Gergő Érdi wrote: > I'd love to have this in a GHC 8.10 release: > https://mail.haskell.org/pipermail/ghc-devs/2021-March/019629.html
This is already in 9.0, 9.2 and master, but it is a rather non-trivial change, given all the new work that went into the String case. So I am not sure it is small/simple enough to make for a compelling backport. There's a lot of recent activity in this space. See also <https://gitlab.haskell.org/ghc/ghc/-/merge_requests/5259>, which is not yet merged into master, and might still be eta-reduced one more step). I don't know whether such optimisation tweaks (not a bugfix) are in scope for backporting, we certainly need to be confident they'll not cause any new problems. FWIW, 5259 is dramatically simpler... Of course we also have <https://gitlab.haskell.org/ghc/ghc/-/merge_requests/4890> in much the same territory, but there we're still blocked on someone figuring out what's going on with the 20% compile-time hit with T13056, and whether that's acceptable or not... -- Viktor. _______________________________________________ ghc-devs mailing list ghc-devs@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs
