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 A224D39AD842; Wed, 12 May 2021 21:03:22 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org A224D39AD842
From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/100521] [12 Regression] ICE at -O2 and above: in
 verify_range, at value-range.cc:384 since r12-127-g694c956b6b877e48
Date: Wed, 12 May 2021 21:03:22 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: c
X-Bugzilla-Version: tree-ssa
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: cvs-commit at gcc dot gnu.org
X-Bugzilla-Status: NEW
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: 
Message-ID: <bug-100521-4-P2wyCfG1up@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-100521-4@http.gcc.gnu.org/bugzilla/>
References: <bug-100521-4@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: Wed, 12 May 2021 21:03:22 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100521

--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Aldy Hernandez <aldyh@gcc.gnu.org>:

https://gcc.gnu.org/g:d902a1b57606536982a1001670f998de685eaf7c

commit r12-755-gd902a1b57606536982a1001670f998de685eaf7c
Author: Aldy Hernandez <aldyh@redhat.com>
Date:   Wed May 12 15:22:15 2021 -0400

    Skip out on processing __builtin_clz when varying.

    The previous changes to irange::constant_p return TRUE for
    VARYING, since VARYING has numerical end points like any other
    constant range.  The problem is that some users of constant_p
    depended on constant_p excluding the full domain.  The
    range handler for __builtin_clz, that is shared between ranger
    and vr_values, is one such user.

    This patch excludes varying_p(), to match the original behavior
    for clz.

    gcc/ChangeLog:

            PR c/100521
            * gimple-range.cc (range_of_builtin_call): Skip out on
              processing __builtin_clz when varying.=