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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/109031] csmith: possible bad code with -O2
 -fno-strict-aliasing
Date: Thu, 09 Mar 2023 08:48:54 +0000
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X-Bugzilla-Keywords: needs-bisection, needs-reduction, wrong-code
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109031

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org

--- Comment #20 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Well, cvise reduction of runtime testcases is always problematic, and tryin=
g to
ensure
the reduction doesn't introduce uninitialized var uses which weren't there
before (perhaps with checking for new -Wmaybe-uninitialized -Wuninitialized
warnings or even all -Wall -W warnings; or perhaps with
-ftrivial-var-init=3Dsomething) as well as using some timeout on the execut=
ion
because the execution could very well loop forever is minimum what needs to=
 be
done.=