From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 506023858D35; Thu, 30 Jul 2020 08:36:39 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 506023858D35 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1596098199; bh=BGtWB0DwKlx+8EpHkpzeGR7DS51Bbe1qURZzs7Ncdxc=; h=From:To:Subject:Date:In-Reply-To:References:From; b=rx5Yh6age0+aIcv9B4Sx4BH+kBP2QlNl7CVCJjNJQIHafGlfVMTRfjptTqboe6bwy QviPXIKKUabPyP087bzzcXU5GBXvypVsc0AfFd69M3romh/rEPbf1eJ/uT7sQ5Dg8J wwOUAy69CngxIHX7+Ky//B5f9dgH7UmBPedNE5Gk= From: "marxin at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/96388] scheduling takes forever with -fPIC Date: Thu, 30 Jul 2020 08:36:39 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: rtl-optimization X-Bugzilla-Version: 11.0 X-Bugzilla-Keywords: compile-time-hog, memory-hog, needs-reduction X-Bugzilla-Severity: normal X-Bugzilla-Who: marxin at gcc dot gnu.org X-Bugzilla-Status: NEW 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: Thu, 30 Jul 2020 08:36:39 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D96388 --- Comment #7 from Martin Li=C5=A1ka --- (In reply to Richard Biener from comment #6) > (In reply to Martin Li=C5=A1ka from comment #5) > > Started with r9-2469-gc6067437d314f803. >=20 > Hmm, it probably makes a latent scheduler issue appear. Guess for better > analysis we have to trim down the source. Not sure how - maybe > automatically with one good and one bad rev. looking for a hundred-fold > increase in memory use? Look at the good compile with /usr/bin/time > and using the RSS to compute a ulimit -v limit or so. I'm reducing that in the ulimit fence ;) Let see where it leads..=