From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 3120A385840E; Wed, 15 Sep 2021 15:57:37 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 3120A385840E From: "marxin at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/101935] [12 Regression] 538.imagick_r LTO -Ofast regression on Zen2 and Kabylake caused by r12-2666-g29f0e955c97 Date: Wed, 15 Sep 2021 15:57:37 +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: 12.0 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: normal X-Bugzilla-Who: marxin at gcc dot gnu.org X-Bugzilla-Status: RESOLVED X-Bugzilla-Resolution: FIXED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: hjl.tools at gmail dot com X-Bugzilla-Target-Milestone: 12.0 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_status resolution 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 X-BeenThere: gcc-bugs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-bugs mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 15 Sep 2021 15:57:37 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D101935 Martin Li=C5=A1ka changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED --- Comment #4 from Martin Li=C5=A1ka --- (In reply to Martin Jambor from comment #0) > When compiled with -flto -Ofast -march=3Dnative, the benchmark > 538.imagick_r is about 28% slower on AMD zen2 machines (see > https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=3D287.507.0 ) > and about 18% slower on Intel Kabylake (see > https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=3D11.507.0 ) Both testers are back regarding the speed. Thus I'm closing this issue..=