From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-497538-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 29737 invoked by alias); 18 Sep 2015 19:34:25 -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 29351 invoked by uid 55); 18 Sep 2015 19:34:21 -0000
From: "law at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/47679] [4.9/5/6 Regression] Strange uninitialized warning after SRA
Date: Fri, 18 Sep 2015 19:34:00 -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: 4.6.0
X-Bugzilla-Keywords: diagnostic
X-Bugzilla-Severity: normal
X-Bugzilla-Who: law at gcc dot gnu.org
X-Bugzilla-Status: NEW
X-Bugzilla-Resolution:
X-Bugzilla-Priority: P2
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 4.9.4
X-Bugzilla-Flags:
X-Bugzilla-Changed-Fields:
Message-ID: <bug-47679-4-UoM5I8oqFz@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-47679-4@http.gcc.gnu.org/bugzilla/>
References: <bug-47679-4@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: 2015-09/txt/msg01516.txt.bz2

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47679

--- Comment #28 from Jeffrey A. Law <law at gcc dot gnu.org> ---
Author: law
Date: Fri Sep 18 19:33:48 2015
New Revision: 227922

URL: https://gcc.gnu.org/viewcvs?rev=227922&root=gcc&view=rev
Log:
[PATCH] const_and_copies is no longer file scoped

        PR tree-optimization/47679
        * tree-ssa-dom.c (const_and_copies): No longer file scoped.  Move
        it here ...
        (dom_opt_dom_walker): New private member holding the const_and_copies
        object.  Update constructor.
        (pass_dominator::execute): Corresponding changes to declaration
        and initialization of const_and_copies.  Update constructor call
        for the dom_opt_dom_walker object.
        (record_temporary_equivalences): Accept const_and_copies argument
        pass it down to children as needed.
        (record_equality): Likewise.
        (record_equivalences_from_incoming_edge): Likewise.
        (cprop_into_successor_phis, optimize_stmt): Likewise.
        (eliminate_redundant_computations): Likewise.
        (dom_opt_dom_walker::thread_across_edge): Update access to
        const_and_copies object and pass it to children as needed.
        (dom_opt_dom_walker::before_dom_children): Similarly.
        (dom_opt_dom_walker::after_dom_children): Similarly.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-ssa-dom.c