From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 20846 invoked by alias); 19 Aug 2014 01:37:51 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 20791 invoked by uid 48); 19 Aug 2014 01:37:39 -0000 From: "amker at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/62173] [AArch64] Performance regression due to r213488 Date: Tue, 19 Aug 2014 01:37:00 -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: 5.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: amker at gcc dot gnu.org X-Bugzilla-Status: NEW 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: cc Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2014-08/txt/msg01243.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62173 amker at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |amker at gcc dot gnu.org --- Comment #3 from amker at gcc dot gnu.org --- I have seen potential improvement of bzip/gzip on arm 32. It relates to addressing mode which affecting loop invariant hoisting in kernel loop of these two benchmarks. I once had a patch but didn't follow up that. I think it's worthy of methodical investigation, rather than case by case changes. Thanks, bin