From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-437270-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 30666 invoked by alias); 11 Dec 2013 00:58:42 -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 30628 invoked by uid 55); 11 Dec 2013 00:58:39 -0000
From: "amker at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/41488] IVOpts cannot coalesce multiple induction variables
Date: Wed, 11 Dec 2013 00:58:00 -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: 4.4.1
X-Bugzilla-Keywords: missed-optimization
X-Bugzilla-Severity: normal
X-Bugzilla-Who: amker 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-Flags:
X-Bugzilla-Changed-Fields:
Message-ID: <bug-41488-4-iOpzfk3wou@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-41488-4@http.gcc.gnu.org/bugzilla/>
References: <bug-41488-4@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: 2013-12/txt/msg00925.txt.bz2

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41488

--- Comment #7 from amker at gcc dot gnu.org ---
Author: amker
Date: Wed Dec 11 00:58:35 2013
New Revision: 205880

URL: http://gcc.gnu.org/viewcvs?rev=205880&root=gcc&view=rev
Log:

    Reverted:
    2013-12-10  Bin Cheng  <bin.cheng@arm.com>
    PR tree-optimization/41488
    * tree-ssa-loop-ivopts.c (add_old_iv_candidates): Don't add cand
    for PEELED_CHREC kind IV.
    * tree-scalar-evolution.c: Include necessary header files.
    (peeled_chrec_map, simplify_peeled_chrec): New.
    (analyze_evolution_in_loop): New static variable.
    Call simplify_peeled_chrec.
    (scev_initialize): Initialize peeled_chrec_map.
    (scev_reset, scev_finalize): Reset and release peeled_chrec_map.

    Reverted:
    2013-12-10  Bin Cheng  <bin.cheng@arm.com>
    PR tree-optimization/41488
    * gcc.dg/tree-ssa/scev-7.c: New test.
    * gcc.dg/pr41488.c: New test.


Removed:
    trunk/gcc/testsuite/gcc.dg/pr41488.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/scev-7.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-scalar-evolution.c
    trunk/gcc/tree-ssa-loop-ivopts.c