From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 503 invoked by alias); 11 Dec 2012 19:31:16 -0000 Received: (qmail 454 invoked by uid 48); 11 Dec 2012 19:31:02 -0000 From: "tejohnson at google dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug lto/45375] [meta-bug] Issues with building Mozilla with LTO Date: Tue, 11 Dec 2012 19:31:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: lto X-Bugzilla-Keywords: meta-bug X-Bugzilla-Severity: normal X-Bugzilla-Who: tejohnson at google dot com 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 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: 2012-12/txt/msg01151.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45375 --- Comment #154 from Teresa Johnson 2012-12-11 19:30:53 UTC --- What was the size of the gcc lto/pgo binary before the change to use the histogram? Was it close to the gcc 4.7 lto/pgo size? In that case that is a very large increase, ~25%. Markus, could you attach to the bug one of the gcda files so that I can see the program summary and figure out how far off the old hot bb threshold is from the new histogram-based one? Also, it would be good to see the -fdump-ipa-inline dumps before and after the regression (if necessary, the before one could be from 4_7).