From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id A0A7C385842F; Fri, 1 Oct 2021 10:10:40 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org A0A7C385842F From: "jakub at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug sanitizer/102515] UBSAN misses signed division instrumentation Date: Fri, 01 Oct 2021 10:10:40 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: sanitizer X-Bugzilla-Version: 12.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: jakub at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: rguenth at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: attachments.created 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: Fri, 01 Oct 2021 10:10:40 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102515 --- Comment #5 from Jakub Jelinek --- Created attachment 51529 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D51529&action=3Dedit gcc12-pr102515.patch I have one too, even bootstrapped/regtested overnight, just didn't get to writing new testcases that would cover the cases that need testing (i.e. th= at -f{,no-}sanitize-recover=3Dfloat-divide-by-zero rather than -f{,no-}sanitize-recover=3Dinteger-divide-by-zero decides on *_abort for fl= oat division and the behavior for -fsanitize=3Dundefined -fno-sanitize-recover=3Dinteger-divide-by-zero or -fsanitize=3Dundefined -fno-sanitize-recover=3Dsigned-integer-overflow (i.e. when integer-divide-b= y-zero and signed-integer-overflow differ in the recover method).=