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 4D5C7385840E; Tue, 11 Jan 2022 08:37:01 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 4D5C7385840E
From: "luoxhu at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/103802] [12 regression] recip-3.c fails after
 r12-6087 on Power m32
Date: Tue, 11 Jan 2022 08:37:01 +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: 12.0
X-Bugzilla-Keywords: missed-optimization, testsuite-fail
X-Bugzilla-Severity: normal
X-Bugzilla-Who: luoxhu 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: 12.0
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: bug_status resolution
Message-ID: <bug-103802-4-dQN2TV3h3H@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-103802-4@http.gcc.gnu.org/bugzilla/>
References: <bug-103802-4@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: Tue, 11 Jan 2022 08:37:01 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103802

luoxhu at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #8 from luoxhu at gcc dot gnu.org ---
Fixed by

The master branch has been updated by Xiong Hu Luo <luoxhu@gcc.gnu.org>:

https://gcc.gnu.org/g:0552605b7b27dc6beed62e71bd05bc1efd191c0d

commit r12-6430-g0552605b7b27dc6beed62e71bd05bc1efd191c0d
Author: Xionghu Luo <luoxhu@linux.ibm.com>
Date:   Mon Jan 10 20:05:56 2022 -0600

    testsuite: Fix regression on m32 by r12-6087 [PR103820]

    r12-6087 will avoid move cold bb out of hot loop, while the original
    intent of this testcase is to hoist divides out of loop and CSE them to
    only one divide.  So increase the loop count to turn the cold bb to hot
    bb again.  Then the 3 divides could be rewritten with same reciptmp.

    Tested pass on Power-Linux {32,64}, x86 {64,32} and i686-linux.

    gcc/testsuite/ChangeLog:

            PR testsuite/103820
            * gcc.dg/tree-ssa/recip-3.c: Adjust.=