From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 337E73858C2D; Tue, 11 Oct 2022 10:13:26 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 337E73858C2D DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1665483206; bh=ShhR3tfd6wKYRW/Qni8TRpVNRGZo8cO9cwhU8OlsJEQ=; h=From:To:Subject:Date:In-Reply-To:References:From; b=k7fkF1Bh9KBlnBaDuEw+7/Z1WGSfzlBMbsRg3IMf4gFKTORHrk89BJptcUpSxhw55 saqvVFprnbv+h01tS7HlwaEe2jkmECUToOoRP4BoV7L6FLLs0nfYrf6I5ZsPyc7m/L cdPduCIhSeEdqMJapDHu0mUMH0gxHAAgk4YcZ/nY= From: "crazylht at gmail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/107093] AVX512 mask operations not simplified in fully masked loop Date: Tue, 11 Oct 2022 10:13:25 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: target X-Bugzilla-Version: 13.0 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: normal X-Bugzilla-Who: crazylht at gmail dot com X-Bugzilla-Status: UNCONFIRMED 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=3D107093 --- Comment #5 from Hongtao.liu --- Also i think masked epilog(--param=3Dvect-partial-vector-usage=3D1) should = be good for general cases under AVX512, espicially when main loop's vector width is 512, and the remain tripcount is not enough for 256-bit vectorization but ok for 128-bit vectorization.=