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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/111732] genmatch missed optimization
Date: Mon, 09 Oct 2023 12:26:00 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D111732

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #1)
> Created attachment 56079 [details]
> start of a patch
>=20
> Start of a patch.  Still has duplicate case values (dt tree insertion) and
> missed for ID passing to the tail functions.

Overall effect isn't too big - the biggest limitation is likely failure to
factor outermost fors (or rather giving up on any delaying when the outermo=
st
match expression needs to be for-lowered rather than deciding on an operator
basis).=