From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 6C969385829A; Mon, 29 Jan 2024 13:56:30 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 6C969385829A DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1706536590; bh=YaItL9Typqgujyu4D4glx1OD5if1HtgZfI9kl/Ryuxc=; h=From:To:Subject:Date:In-Reply-To:References:From; b=C8X6x2bn507m1P4/6WsxfXiDwsGj5Oh89/10mfnSLfuFk4fg3fT43G8nQgzG+pKZw SgvA/jCXEu4fcgcfcJaUyV5qshhppWvw+mspLnn3HD9tyjrv4wWdnL5HdEbFAqd6hr lyJV4IB1HoM3mvTGxxEEc6znTckdy9RiuQwGujgs= From: "rguenth at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/113597] [14 Regression] aarch64: Significant code quality regression since r14-8346-ga98d5130a6dcff Date: Mon, 29 Jan 2024 13:56:30 +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: alias, missed-optimization X-Bugzilla-Severity: normal X-Bugzilla-Who: rguenth at gcc dot gnu.org 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: 14.0 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: attachments.isobsolete attachments.created 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=3D113597 Richard Biener changed: What |Removed |Added ---------------------------------------------------------------------------- Attachment #57214|0 |1 is obsolete| | --- Comment #13 from Richard Biener --- Created attachment 57252 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D57252&action=3Dedit prototype fix Note when I extended the patch to also cover a PARM_DECL base to extent coverage I see FAIL: gcc.dg/torture/pr70421.c -O1 execution test FAIL: gcc.dg/torture/pr70421.c -O2 execution test FAIL: gcc.dg/torture/pr70421.c -O3 -g execution test FAIL: gcc.dg/torture/pr70421.c -Os execution test FAIL: gcc.dg/torture/pr70421.c -O2 -flto -fno-use-linker-plugin -flto-partitio n=3Dnone execution test FAIL: gcc.dg/torture/pr70421.c -O2 -flto -fuse-linker-plugin -fno-fat-lto-obje cts execution test on x86_64. It seems that arg_base_value isn't the correct thing to use but it eventually should have been unique_base_value (UNIQUE_BASE_VALUE_ARG= P)? I'm not sure whether all the different unique base values mean we'll not be able to derive exactly those classes from MEM_EXPRs.=