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 B06ED383A62B; Sat, 28 May 2022 22:39:52 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org B06ED383A62B
From: "dcb314 at hotmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/105763] New: ice in outgoing_edge_range_p, at gimple-ra
 nge-gori.cc:1253
Date: Sat, 28 May 2022 22:39:52 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: c
X-Bugzilla-Version: 12.0
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: dcb314 at hotmail dot com
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Resolution: 
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: bug_id short_desc product version bug_status
 bug_severity priority component assigned_to reporter target_milestone
 attachments.created
Message-ID: <bug-105763-4@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: Sat, 28 May 2022 22:39:52 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105763

            Bug ID: 105763
           Summary: ice in outgoing_edge_range_p, at gimple-ra
                    nge-gori.cc:1253
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dcb314 at hotmail dot com
  Target Milestone: ---

Created attachment 53048
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D53048&action=3Dedit
C source code

For the attached code, with compiler flag -O3, does this:

during GIMPLE pass: unswitch
rl2png.c: In function =E2=80=98rl2_decode_png=E2=80=99:
rl2png.c:1292:1: internal compiler error: in outgoing_edge_range_p, at
gimple-ra
nge-gori.cc:1253
0xa17888 gori_compute::outgoing_edge_range_p(irange&, edge_def*, tree_node*,
ran
ge_query&)
        ../../trunk.git/gcc/gimple-range-gori.cc:1253
0x2da292b evaluate_control_stmt_using_entry_checks
        ../../trunk.git/gcc/tree-ssa-loop-unswitch.cc:686
0x2da4e43 evaluate_bbs<evaluate_loop_insns_for_predicate(loop*,
predicate_vector
&, unswitch_predicate*, int, unsigned int*, unsigned
int*)::<lambda(basic_block)
> >
        ../../trunk.git/gcc/tree-ssa-loop-unswitch.cc:830
0x2da97b6 evaluate_loop_insns_for_predicate
        ../../trunk.git/gcc/tree-ssa-loop-unswitch.cc:876

The problem first seems to occur sometime between git hash 442cf0977a299394
and 850a9ce8bcca59c7, a distance of some 32 commits.

A reduction is running now and will be finishing in the next ten minutes.=