From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugzilla@gcc.gnu.org>
Received: by sourceware.org (Postfix, from userid 48)
 id 6B4C5385700D; Sun, 18 Jul 2021 21:09:48 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 6B4C5385700D
From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/61051] Duplicated instructions in both
 conditional branches
Date: Sun, 18 Jul 2021 21:09:48 +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: 5.0
X-Bugzilla-Keywords: missed-optimization
X-Bugzilla-Severity: normal
X-Bugzilla-Who: pinskia at gcc dot gnu.org
X-Bugzilla-Status: RESOLVED
X-Bugzilla-Resolution: FIXED
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 10.0
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: component bug_status resolution target_milestone
 keywords
Message-ID: <bug-61051-4-J5YVl77a9L@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-61051-4@http.gcc.gnu.org/bugzilla/>
References: <bug-61051-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-BeenThere: gcc-bugs@gcc.gnu.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Gcc-bugs mailing list <gcc-bugs.gcc.gnu.org>
List-Unsubscribe: <https://gcc.gnu.org/mailman/options/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=unsubscribe>
List-Archive: <https://gcc.gnu.org/pipermail/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-request@gcc.gnu.org?subject=help>
List-Subscribe: <https://gcc.gnu.org/mailman/listinfo/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=subscribe>
X-List-Received-Date: Sun, 18 Jul 2021 21:09:48 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D61051

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|target                      |tree-optimization
             Status|WAITING                     |RESOLVED
         Resolution|---                         |FIXED
   Target Milestone|---                         |10.0
           Keywords|                            |missed-optimization

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Fixed on the trunk:
  x.0_4 =3D x;
  if (_3 !=3D x.0_4)
    goto <bb 5>; [66.00%]
  else
    goto <bb 4>; [34.00%]

  <bb 4> [local count: 195204118]:

  <bb 5> [local count: 574129753]:
  # prephitmp_24 =3D PHI <1(3), 2(4)>
  r.1_5 =3D r;
  pretmp_26 =3D d;
  if (r.1_5 > 0)
    goto <bb 6>; [59.00%]
  else
    goto <bb 7>; [41.00%]

  <bb 6> [local count: 338736556]:
  f_18 =3D pretmp_26 + 1;

  <bb 7> [local count: 574129754]:
  # f_9 =3D PHI <f_18(6), pretmp_26(5)>

I think it has been fixed in since at least GCC 10 even.=