From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id B737F385BF9C; Sat, 13 Mar 2021 22:38:23 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org B737F385BF9C From: "arnd at linaro dot org" To: gcc-bugs@gcc.gnu.org Subject: [Bug c/99578] gcc-11 -Warray-bounds or -Wstringop-overread warning when accessing a pointer from integer literal Date: Sat, 13 Mar 2021 22:38:23 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c X-Bugzilla-Version: 11.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: arnd at linaro dot org X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: gcc-bugs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-bugs mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 13 Mar 2021 22:38:23 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99578 --- Comment #3 from Arnd Bergmann --- After some more analysis, I found that the -Wstringop-overread warning only happens here (and presumably in all the other cases I found) because I disa= bled -Warray-bounds for gcc-11. I'm still looking at -Warray-bounds to see what has changed here. There were some interesting findings from that one, but the number of added warnings m= ade it hard to keep track of what is going on. It appears that the -Wstringop-overread warnings mostly a subset of those.=