From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 104EE3858C50; Thu, 1 Dec 2022 16:52:11 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 104EE3858C50 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1669913531; bh=VAluF8KfyqI09i8+hN0Tg0oO2JmfEQPvkZuDXde0cOw=; h=From:To:Subject:Date:In-Reply-To:References:From; b=ZwH/YPmAOZUhEfzxqvrP7UxdJ5w5evtlBoTDdUULOv+b+t+hOR2kkxxHg1kPO917b DNEvUjNZdXnfaH4U/x5+8qtuwVh6Wa0W2W//57KDjm1PRCaiZ/bOdAmmKNi6uJLNMd Wdw2+7y8vNbWNwDUpO4nQU+L2WB2QbhBDiTF/StI= From: "wilco at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/107678] [13 Regression] Segfault in aarch64_fallback_frame_state when running SVE code Date: Thu, 01 Dec 2022 16:52:10 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: target X-Bugzilla-Version: 13.0 X-Bugzilla-Keywords: EH, wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: wilco at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: wilco at gcc dot gnu.org X-Bugzilla-Target-Milestone: 13.0 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: assigned_to 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=3D107678 Wilco changed: What |Removed |Added ---------------------------------------------------------------------------- Assignee|unassigned at gcc dot gnu.org |wilco at gcc dot gn= u.org --- Comment #6 from Wilco --- So the issue is that AArch64 return address signing was using the loc.offset field which is now uninitialized. The fix is to check for REG_UNSAVED first= and use that to initialize the offset. I'm testing a patch.=