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 CB6CA384B801; Tue,  6 Jul 2021 17:57:48 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org CB6CA384B801
From: "ubizjak at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/101346] ICE: maximum number of generated reload insns per
 insn achieved (90)
Date: Tue, 06 Jul 2021 17:57:48 +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: 12.0
X-Bugzilla-Keywords: ice-on-valid-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: ubizjak at gmail 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: 
Message-ID: <bug-101346-4-Klv1g6GLwW@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-101346-4@http.gcc.gnu.org/bugzilla/>
References: <bug-101346-4@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, 06 Jul 2021 17:57:48 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D101346

--- Comment #1 from Uro=C5=A1 Bizjak <ubizjak at gmail dot com> ---
(In reply to G. Steinmetz from comment #0)

> $ gcc-12-20210704 -c z1.c -O0 -m32 -fprofile-generate

Also needs -msse.

It looks that:

(insn 38 37 39 6 (set (subreg:SI (reg:TD 83 [ _2 ]) 0)
        (subreg:SI (reg:TD 82 [ _1 ]) 0)) "pr101346.c":4:10 75
{*movsi_internal}
     (nil))

causes reload loop.=