From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id C41923858C2F; Sun, 25 Jun 2023 04:06:04 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org C41923858C2F DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1687665964; bh=qz4q6DpEEuSOHvCkg7DisZzPvKt3n39JTGvZ7EtlJu4=; h=From:To:Subject:Date:In-Reply-To:References:From; b=Dj6qxRMvcILSVgFPQfS46R1UQMDKTapR1Ci7Yyg6Qm3ZvHhJQcg65+w9I7a1SCxKQ zo/kuvgr6gGb6uOOhp94tobRUK8j9CitFdZZ/YyouaozsY3wl5XGmQobG8TnsmpSwx LVuDf0+ECSulHBKEsQizVareVeJmjHYgLuWpuGKg= From: "crazylht at gmail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/110237] gcc.dg/torture/pr58955-2.c is miscompiled by RTL scheduling after reload Date: Sun, 25 Jun 2023 04:06:04 +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: 14.0 X-Bugzilla-Keywords: wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: crazylht at gmail dot com 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: 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=3D110237 --- Comment #9 from Hongtao.liu --- > So we can simply clear only MEM_EXPR (and MEM_OFFSET), that cuts off the > problematic part of alias analysis. Together with UNSPEC this might be > enough to fix things. >=20 Note maskstore won't optimized to vpblendd since it doesn't support memory dest, so I guess no need to use UNSPEC for maskstore?=