From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 25595 invoked by alias); 23 Jan 2011 17:58:33 -0000 Received: (qmail 25586 invoked by uid 22791); 23 Jan 2011 17:58:32 -0000 X-SWARE-Spam-Status: No, hits=-2.9 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 X-Spam-Check-By: sourceware.org Received: from localhost (HELO gcc.gnu.org) (127.0.0.1) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Sun, 23 Jan 2011 17:58:18 +0000 From: "hubicka at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug lto/45810] 40% slowdown when using LTO for a single-file program X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: lto X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: hubicka 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-Changed-Fields: Message-ID: In-Reply-To: References: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 Date: Sun, 23 Jan 2011 21:02:00 -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 X-SW-Source: 2011-01/txt/msg02393.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45810 --- Comment #16 from Jan Hubicka 2011-01-23 17:57:58 UTC --- Also w/o inlining hookes_law but with inlining perida (by using large-function-growth parameter only and the patch abov), I get 30% speedup, not 50% as with inlining both, but it seems that we miss some optimization that is independent on inlining w/o early FRE.