From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 7433C3857354; Sat, 1 Oct 2022 23:51:47 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 7433C3857354 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1664668307; bh=nj75fO0JQLTJE50evMdxhustlo5v+wUuv9jntG5NiU8=; h=From:To:Subject:Date:In-Reply-To:References:From; b=p5s9BAy0x2J6xZhgdeCTz7H1R3B7pid7Xsk514Kg+04yrxTXn2+cXNgQ4z2mRx3EJ v7hKLuW5WvZimEBnHYcva2Ksz+XqpFexX3MjvR6J+7xiAIJnyc9I4/fOXNbiuKNHVh 0XvAwqqB4qIVGNgQVHFsfilaEyEwMFcgKAjwclR0= From: "pinskia at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/107090] [aarch64] sequence logic should be combined with mul and umulh Date: Sat, 01 Oct 2022 23:51:47 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Version: 13.0 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: enhancement X-Bugzilla-Who: pinskia at gcc dot gnu.org X-Bugzilla-Status: NEW 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: 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=3D107090 --- Comment #3 from Andrew Pinski --- (In reply to vfdff from comment #2) > Thanks for your suggestion. >=20 > As the combine pass can't address more than 4 sequence insns, which pass = may > be more suitable to match the huge pattern after fixing the 1st issue. match.pd can handle more than 4 gimple statement to do the matching.=