From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-428837-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 14292 invoked by alias); 2 Sep 2013 13:25:57 -0000
Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Id: <gcc-bugs.gcc.gnu.org>
List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-help@gcc.gnu.org>
Sender: gcc-bugs-owner@gcc.gnu.org
Received: (qmail 14245 invoked by uid 48); 2 Sep 2013 13:25:54 -0000
From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/57511] [4.8 Regression] Missing SCEV final value replacement
Date: Mon, 02 Sep 2013 13:25:00 -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: 4.8.0
X-Bugzilla-Keywords: missed-optimization
X-Bugzilla-Severity: normal
X-Bugzilla-Who: rguenth at gcc dot gnu.org
X-Bugzilla-Status: ASSIGNED
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: rguenth at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 4.8.2
X-Bugzilla-Flags:
X-Bugzilla-Changed-Fields: keywords cf_known_to_work short_desc
Message-ID: <bug-57511-4-551XRRtdlU@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-57511-4@http.gcc.gnu.org/bugzilla/>
References: <bug-57511-4@http.gcc.gnu.org/bugzilla/>
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: 2013-09/txt/msg00077.txt.bz2

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57511

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |missed-optimization
      Known to work|                            |4.9.0
            Summary|[4.8/4.9 Regression]        |[4.8 Regression] Missing
                   |Missing SCEV final value    |SCEV final value
                   |replacement                 |replacement

--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed on trunk.  Note that patch requires

2013-09-02  Richard Biener  <rguenther@suse.de>

        * tree-affine.c (add_elt_to_tree): Avoid converting all pointer
        arithmetic to sizetype.

to not regress gcc.dg/tree-ssa/reassoc-19.c which means it isn't suitable
for backporting IMHO.