From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 2167F39730EC; Wed, 20 Jan 2021 17:40:16 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 2167F39730EC From: "akim.demaille at gmail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/98753] -Wfree-nonheap-object on unreachable code with -O0 Date: Wed, 20 Jan 2021 17:40:16 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: middle-end X-Bugzilla-Version: 11.0 X-Bugzilla-Keywords: diagnostic X-Bugzilla-Severity: normal X-Bugzilla-Who: akim.demaille at gmail dot com X-Bugzilla-Status: NEW 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: Wed, 20 Jan 2021 17:40:16 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98753 --- Comment #9 from Akim Demaille --- Hi Martin, Thanks for the detailed explanation. (In reply to Martin Sebor from comment #5) > Changing this message alone to say "free() may be called with non-heap > object" wouldn't be appropriate without also changing all the other messa= ges > that are subject to the same problem (all flow-sensitive warnings are). And I definitely believe this should be done. All the messages that claim "you _have_ this problem" should be reworded to "you _may have_ this problem"=E2=80=93unless of course that the problem can be proven to exist. But I agree this is beyond the scope of this issue. Cheers=