From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 26B0B3858C52; Thu, 4 Apr 2024 11:40:58 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 26B0B3858C52 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1712230858; bh=VhVBue3ARnYu/XBSQCU7ts5PpYuMyJo8oH6vyunnHhA=; h=From:To:Subject:Date:In-Reply-To:References:From; b=okt6y7f8aQ0MP7J2SXB1Dnc4ivt3BJCLIH2boMQE2ljhzYOzB2ZB6uFyHItZx8hSt +Ihj1PCt8AMIllcBCvWUvK8rnW9EMooMGSxtYJTv1vi6YS/b5atKJrxKAJXEpNqmjO Gx5dIotk/O9fjzUcy7OO6Yok67dE/1q0cc/fACD8= From: "hubicka at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug ipa/113359] [13/14 Regression] LTO miscompilation of ceph on aarch64 and x86_64 Date: Thu, 04 Apr 2024 11:40:53 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: ipa X-Bugzilla-Version: 13.2.1 X-Bugzilla-Keywords: lto, wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: hubicka at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: jamborm at gcc dot gnu.org X-Bugzilla-Target-Milestone: 13.3 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=3D113359 --- Comment #23 from Jan Hubicka --- The patch looks reasonable. We probably could hash the padding vectors at summary generation time to reduce WPA overhead, but that can be done incrementally next stage1. I however wonder if we really guarantee to copy the paddings everywhere else then the total scalarization part? (i.e. in all paths through the RTL expansion)=