From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id CF5AF385828B; Thu, 13 Oct 2022 02:57:51 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org CF5AF385828B DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1665629871; bh=4+LJclWc6ly9bD5+Bvo2SCD6tUayLPBgb0PxRadTsas=; h=From:To:Subject:Date:In-Reply-To:References:From; b=EO/kD0BVURcuhWAbkKgRPvMV0n1BKfGpVE5FzPMRC8kIJV/y7iGsvZtHNIetVsnhh +LVUMFm1OhUXR4fsmkviCkHYFcg8iX2hT/ZouruAkZYbDCoaNLlPBNQVAklK72AO1/ uedDAd5FDG7NboB5nSY22WABsTkAAxFN3GGJbQDg= From: "zhongyunde at huawei dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/107090] [aarch64] sequence logic should be combined with mul and umulh Date: Thu, 13 Oct 2022 02:57:50 +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: zhongyunde at huawei dot com 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: 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=3D107090 --- Comment #10 from vfdff --- Created attachment 53698 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D53698&action=3Dedit the huge bb sligtly change after match ResLo Thanks for your suggestion, and I think both ctz_table_index and nop_atomic_bit_test_and_p only return one value, so I'll try to match ResHi= and ResLo separately as the bb only sligtly change after we first matched the R= esLo=