From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by server2.sourceware.org (Postfix, from userid 48) id 20C12385E82C; Mon, 9 Mar 2020 06:17:09 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 server2.sourceware.org 20C12385E82C DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1583734629; bh=Z0FMCpraHsbrE4nArwqJ/94xCzkCBQxfdmmcAnqtli4=; h=From:To:Subject:Date:In-Reply-To:References:From; b=psSfdjPHj8n/PmFJDPLKCvw7RQzhIBzoGDiVx8UcsaQtZEmquEUe8ofVpTb2qe4/M NguVXhgERA33n6IQjw0e6rrUP62XqmroJ3PypZg1+ivO+nVbIHuiqkgDNlGl2nR9xi XquC6Jqw5OV+a71F65WteFAy10YeCZyaDE0Cd6hU= From: "pinskia at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/94092] Code size and performance degradations after -ftree-loop-distribute-patterns was enabled at -O[2s]+ Date: Mon, 09 Mar 2020 06:17:08 +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: 10.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: pinskia at gcc dot gnu.org 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 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: Mon, 09 Mar 2020 06:17:09 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D94092 --- Comment #1 from Andrew Pinski --- >For coremark, this is not only harmful to performance, but also code size. Bad, very bad benchmark .... SPEC CPU is closer to real code but still bad benchmarks.=