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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/101541] Missing ABSU detection at gimple
Date: Sun, 15 Oct 2023 19:24:10 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D101541

--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Created attachment 56118
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D56118&action=3Dedit
Patch which I am testing which allows for more (independent of the other)

This patch improves the case where we have a conversion at the end (after t=
he
negate expression). And with both of these patches together we are able to
catch almost all.

There is one more phi-opt patch needed to catch the case where the conversi=
on
before the negate expression is conditional but that is for another day.=