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 766883858403; Mon,  3 Jan 2022 19:59:35 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 766883858403
From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/103894] [12 Regression] ICE: in emit_move_multi_word, at
 expr.c:3870 with -mno-sse2
Date: Mon, 03 Jan 2022 19:59:35 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: target
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: P1
X-Bugzilla-Assigned-To: ubizjak at gmail dot com
X-Bugzilla-Target-Milestone: 12.0
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-103894-4-FiJMkOVXjI@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-103894-4@http.gcc.gnu.org/bugzilla/>
References: <bug-103894-4@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: Mon, 03 Jan 2022 19:59:35 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103894

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

https://gcc.gnu.org/g:1096ab1775636f35de9c6661f8f71f03299af998

commit r12-6194-g1096ab1775636f35de9c6661f8f71f03299af998
Author: Uros Bizjak <ubizjak@gmail.com>
Date:   Mon Jan 3 20:58:16 2022 +0100

    i386: Always enable mov<V_32:mode> patterns [PR103894]

    Middle end tries to generate V4QImode moves to implement V2QImode inser=
ts
    and calls emit_move_multi_word when V4QImode moves are unavailable, as =
is
    the case with 32-bit vector moves, constrainted with TARGET_SSE2.

    However, this triggers

      gcc_assert (mode_size >=3D UNITS_PER_WORD);

    in emit_move_multi_word, since mode_size of V4QImode operand is less th=
an
    UNITS_PER_WORD of 64-bit targets.

    The patch unconditionally enables 32-bit vector moves to match 16-bit
    vector moves.  This also enables implementation of 32-bit vector logic
    operations with GPR in a follow-up patch.

    2022-01-03  Uro=C3=85=C2=A1 Bizjak  <ubizjak@gmail.com>

    gcc/ChangeLog:

            PR target/103894
            * config/i386/mmx.md (mov<V_32:mode>): Remove TARGET_SSE2
constraint.
            (mov<V_32:mode>_internal): Ditto.
            (*push<V_32:mode>_rex64): Ditto.
            (movmisalign<V_32:mode>): Ditto.
            (*push<V_32:mode>_rex64 splitter): Enable for
            TARGET_64BIT && TARGET_SSE.
            (*push<V_32:mode>2): Remove insn pattern.

    gcc/testsuite/ChangeLog:

            PR target/103894
            * gcc.target/i386/pr103894.c: New test.=