<div dir="auto">Thanks, that makes it less appealing. In the original thread, I got no further replies after my email announcing my "discovery" of that commit, so I thought that was the whole story.</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Mar 22, 2021, 13:53 Viktor Dukhovni <<a href="mailto:ietf-dane@dukhovni.org">ietf-dane@dukhovni.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On Mon, Mar 22, 2021 at 12:39:28PM +0800, Gergő Érdi wrote:<br>
<br>
> I'd love to have this in a GHC 8.10 release:<br>
> <a href="https://mail.haskell.org/pipermail/ghc-devs/2021-March/019629.html" rel="noreferrer noreferrer" target="_blank">https://mail.haskell.org/pipermail/ghc-devs/2021-March/019629.html</a><br>
<br>
This is already in 9.0, 9.2 and master, but it is a rather non-trivial<br>
change, given all the new work that went into the String case. So I am<br>
not sure it is small/simple enough to make for a compelling backport.<br>
<br>
There's a lot of recent activity in this space. See also<br>
<<a href="https://gitlab.haskell.org/ghc/ghc/-/merge_requests/5259" rel="noreferrer noreferrer" target="_blank">https://gitlab.haskell.org/ghc/ghc/-/merge_requests/5259</a>>, which is not<br>
yet merged into master, and might still be eta-reduced one more step).<br>
<br>
I don't know whether such optimisation tweaks (not a bugfix) are in<br>
scope for backporting, we certainly need to be confident they'll not<br>
cause any new problems. FWIW, 5259 is dramatically simpler...<br>
<br>
Of course we also have<br>
<<a href="https://gitlab.haskell.org/ghc/ghc/-/merge_requests/4890" rel="noreferrer noreferrer" target="_blank">https://gitlab.haskell.org/ghc/ghc/-/merge_requests/4890</a>> in much the<br>
same territory, but there we're still blocked on someone figuring out<br>
what's going on with the 20% compile-time hit with T13056, and whether<br>
that's acceptable or not...<br>
<br>
-- <br>
Viktor.<br>
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</blockquote></div>