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 1ECF63847803; Tue, 18 May 2021 08:27:19 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 1ECF63847803
From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/100590] [11/12 Regression] ICE:
 verify_flow_info failed (error: too many outgoing branch edges from bb 2)
 since r11-5002-ge3b3b59683c1e7d3
Date: Tue, 18 May 2021 08:27:18 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: rtl-optimization
X-Bugzilla-Version: 12.0
X-Bugzilla-Keywords: ice-on-valid-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: cvs-commit at gcc dot gnu.org
X-Bugzilla-Status: ASSIGNED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P2
X-Bugzilla-Assigned-To: jakub at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 11.2
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-100590-4-pi4Vy1upFG@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-100590-4@http.gcc.gnu.org/bugzilla/>
References: <bug-100590-4@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, 18 May 2021 08:27:19 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100590

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jakub Jelinek <jakub@gcc.gnu.org>:

https://gcc.gnu.org/g:c81704b359283bb54696755ead881ab04136da94

commit r12-866-gc81704b359283bb54696755ead881ab04136da94
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Tue May 18 10:26:45 2021 +0200

    regcprop: Avoid DCE of asm goto [PR100590]

    The following testcase ICEs, because copyprop_hardreg_forward_1 decides
    to DCE asm goto with REG_UNUSED notes (because the output is unused and
    asm isn't volatile).  But that DCE just removes the asm goto, leaving
    a bb with two successors and no insn at the end that would allow that.

    The following patch makes sure we drop that way only INSNs and not
    JUMP_INSNs or CALL_INSNs.

    2021-05-18  Jakub Jelinek  <jakub@redhat.com>

            PR rtl-optimization/100590
            * regcprop.c (copyprop_hardreg_forward_1): Only DCE dead sets if
            they are NONJUMP_INSN_P.

            * gcc.dg/pr100590.c: New test.=