From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 25856 invoked by alias); 23 Oct 2018 12:29:06 -0000 Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Received: (qmail 25837 invoked by uid 89); 23 Oct 2018 12:29:04 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-2.1 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.2 spammy=Hx-languages-length:1015, click X-HELO: gate.crashing.org Received: from gate.crashing.org (HELO gate.crashing.org) (63.228.1.57) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Tue, 23 Oct 2018 12:29:02 +0000 Received: from gate.crashing.org (localhost.localdomain [127.0.0.1]) by gate.crashing.org (8.14.1/8.14.1) with ESMTP id w9NCSvBI012681; Tue, 23 Oct 2018 07:28:58 -0500 Received: (from segher@localhost) by gate.crashing.org (8.14.1/8.14.1/Submit) id w9NCSu3B012663; Tue, 23 Oct 2018 07:28:56 -0500 Date: Tue, 23 Oct 2018 13:08:00 -0000 From: Segher Boessenkool To: Christophe Lyon Cc: gcc Patches , bergner@linux.ibm.com Subject: Re: [PATCH] combine: Do not combine moves from hard registers Message-ID: <20181023122855.GI5205@gate.crashing.org> References: <68abf72a5400b96b9a100966331d3ad2056648e7.1540237620.git.segher@kernel.crashing.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.3i X-IsSubscribed: yes X-SW-Source: 2018-10/txt/msg01425.txt.bz2 On Tue, Oct 23, 2018 at 12:14:27PM +0200, Christophe Lyon wrote: > I have noticed many regressions on arm and aarch64 between 265366 and > 265408 (this commit is 265398). > > I bisected at least one to this commit on aarch64: > FAIL: gcc.dg/ira-shrinkwrap-prep-1.c scan-rtl-dump ira "Split > live-range of register" > The same test also regresses on arm. Many targets also fail gcc.dg/ira-shrinkwrap-prep-2.c; these tests fail when random things in the RTL change, apparently. > For a whole picture of all the regressions I noticed during these two > commits, have a look at: > http://people.linaro.org/~christophe.lyon/cross-validation/gcc/trunk/265408/report-build-info.html No thanks. I am not going to click on 111 links and whatever is behind those. Please summarise, like, what was the diff in test_summary, and then dig down into individual tests if you want. Or whatever else works both for you and for me. This doesn't work for me. Segher