From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 59F753853D0F; Sat, 22 Jul 2023 00:02:13 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 59F753853D0F DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1689984133; bh=DhPMGFBVuih4+mmqV1rZZ+GAuQvVkknKLTZBz00Kvvc=; h=From:To:Subject:Date:In-Reply-To:References:From; b=MZvgxYmS3it8hiWd8O5SH6hcR8bYVFFvmGiuF4Ax78UapF8Q3W5T7n8hMvjTep9lo KTtxLa0LTO3SEHgN94wvX4d25EvqrX+RqJauXWtRpF5IpxUJPiOVgEJrRjSD+LHCPA iYUe+Vca8wATjwVhVAT49NN2VC1CjfPy96SqiX5Y= From: "pinskia at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/110773] [Aarch64] crash (SIGBUS) due to atomic instructions on under-aligned memory Date: Sat, 22 Jul 2023 00:02:13 +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: 14.0 X-Bugzilla-Keywords: wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: pinskia at gcc dot gnu.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: component 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=3D110773 Andrew Pinski changed: What |Removed |Added ---------------------------------------------------------------------------- Component|target |middle-end --- Comment #1 from Andrew Pinski --- this happens on x86_64 too: movq storage+12(%rip), %rax This is almost definitely not atomic too ..=