From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 6647 invoked by alias); 13 Dec 2013 09:51:45 -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 6566 invoked by uid 48); 13 Dec 2013 09:51:42 -0000 From: "burnus at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/59487] [4.9 Regression] When compiled with -fwhole-program rnflow.f90 runs up to 40% slower after r202826 Date: Fri, 13 Dec 2013 09:51:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Version: 4.9.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: burnus at gcc dot gnu.org X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.9.0 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: dependson 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: 2013-12/txt/msg01131.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59487 Tobias Burnus changed: What |Removed |Added ---------------------------------------------------------------------------- Depends on| |58721 --- Comment #2 from Tobias Burnus --- If the draft/RFC patch for PR58721 fixes the issue then mark this PR depend on the other one. Additionally, the cause is then presumably the same - namely the tuning of the builtin-expect probability in commit r203167; the change itself is okay even if it clashes with gfortran's internal use - but that can be fixed differently as discussed in the draft patch plus the other PR.