From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 35B53385843B; Sun, 14 Jul 2024 10:15:56 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 35B53385843B DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1720952156; bh=l2Gn4YVpxJ8VN8zM9JqbN8tIRY5nAwO3j0URuBQcY2I=; h=From:To:Subject:Date:In-Reply-To:References:From; b=MCFsjNGdHD3PcXcnr4Cwu4L0cJtTpwc/+KRg6rGdpHZbAPG2S4MPaBEe4FxSmdL5/ oJTJQ6C55vMvmKtCViWJuSFbLXFNhW+t3aOszoEZ97gB6dQDpp1fvyPO3qqJMovzha JItdPvNwZs2+Fdxv9OJg/8fjJA1E/UpXKm/zSB6s= From: "schwab@linux-m68k.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/115876] ext-dce.cc has ubsan issues; shifting negative values Date: Sun, 14 Jul 2024 10:15:55 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: rtl-optimization X-Bugzilla-Version: 15.0 X-Bugzilla-Keywords: internal-improvement X-Bugzilla-Severity: normal X-Bugzilla-Who: schwab@linux-m68k.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: law 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=3D115876 --- Comment #5 from Andreas Schwab --- Note that the return type of carry_backpropagate should be unsigned as well, but that does not fix the crash.=