From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id D10723858C2B; Mon, 31 Jul 2023 22:43:29 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org D10723858C2B DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1690843409; bh=4Ai4SsQecuCvwSUTU1/64WT1fuzFglVhIzM9z6SS1SY=; h=From:To:Subject:Date:In-Reply-To:References:From; b=pejmTDIDtSc3PqolCGvbj8jhZcTzHsb2Fdl+Btsm1m1DQE5mYfELIGEYTn9StXfD4 bpVblqcsMK0nvQdVmmuoi+n3YFnHTzL8+ECIrBH65d6YEWeqfbVXHxjUlE52YtZOTv iAsbB54EWfpooYUqPZI144MMOkfIzm88DRAP1z/I= From: "dmalcolm at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug analyzer/110830] -Wanalyzer-use-of-uninitialized-value false negative due to use-after-free::supercedes_p. Date: Mon, 31 Jul 2023 22:43:29 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: analyzer X-Bugzilla-Version: 14.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: dmalcolm at gcc dot gnu.org X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: dmalcolm 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 List-Id: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110830 --- Comment #2 from David Malcolm --- The "supercedes_p" logic is called in diagnostic_manager::emit_saved_diagnostics here: best_candidates.handle_interactions (this); I *think* every saved_diagnostic ought to have a non-NULL m_best_epath by t= he time this is called.=