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 46E003858D35; Tue, 16 Jun 2020 20:12:06 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 46E003858D35
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
 s=default; t=1592338326;
 bh=cCxG0NdAbiQ98jaKfy0EVjSQP9Bi8C64WT/CLsJfffg=;
 h=From:To:Subject:Date:From;
 b=h/l+2MKYojMIHZsq+LBpeTSehTiJKSlVbNmZXo1hiSrr5qL4p80NmyXRFR7O0HRDh
 dz/2fE1ISAWIa5qpx0KBbh2xp/IKgaEGFSU/WXQfNJuHpt8HuVQa/wcjsr4rN3sziL
 +Jj1avkjnsvUQmwZRAn/anfCaFloDaGqzKgwNYjc=
From: "kretz at kde dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/95713] New: [10/11 Regression] ICE in
 emit_move_insn when converting int2 vector to short2 vector for
 -march=skylake-avx512 -m32
Date: Tue, 16 Jun 2020 20:12:06 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: rtl-optimization
X-Bugzilla-Version: 10.1.0
X-Bugzilla-Keywords: ice-on-valid-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: kretz at kde dot org
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
 keywords bug_severity priority component assigned_to reporter
 target_milestone cf_gcctarget
Message-ID: <bug-95713-4@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: <http://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: <http://gcc.gnu.org/mailman/listinfo/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=subscribe>
X-List-Received-Date: Tue, 16 Jun 2020 20:12:06 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D95713

            Bug ID: 95713
           Summary: [10/11 Regression] ICE in emit_move_insn when
                    converting int2 vector to short2 vector for
                    -march=3Dskylake-avx512 -m32
           Product: gcc
           Version: 10.1.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: rtl-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: kretz at kde dot org
  Target Milestone: ---
            Target: i?86-*-*

Compile the following testcase with `-O1 -march=3Dskylake-avx512 -m32` (cf.
https://godbolt.org/z/FASxSm):

using int2 [[gnu::vector_size(8)]] =3D int;
using short2 [[gnu::vector_size(4)]] =3D short;

void f(short2);
void g(int2 a)
{
  short2 b{short(a[0]), short(a[1])};
  f(4 > b);
}


Resulting Output:

during RTL pass: expand
<source>: In function 'void g(int2)':
<source>:7:38: internal compiler error: in emit_move_insn, at expr.c:3815
    7 |     short2 b{short(a[0]), short(a[1])};
      |                                      ^=