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From: "xry111 at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/110818] Segmentation fault with '-O3 -fno-dce
 -fno-ipa-cp -fno-tree-dce -fno-tree-sink'
Date: Thu, 27 Jul 2023 01:17:05 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110818

Xi Ruoyao <xry111 at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |xry111 at gcc dot gnu.org

--- Comment #5 from Xi Ruoyao <xry111 at gcc dot gnu.org> ---
(In reply to CTC from comment #2)
> (In reply to Andrew Pinski from comment #1)
> > The reduced testcase is undefined code ....
> > Though the original is most likely well defined valid code.
>=20
> I tried to add "-fsanitize=3Dundefined" to make reduced testcase well def=
ined.
> But the original testcase with "-fsanitize=3Dundefined" can work successf=
ully
> without run-time errors.

But this is really obvious that the reduced testcase is undefined.

Use your brain before pasting an output of automatic tools into a bug repor=
t.=