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 4DC283858420; Wed, 20 Oct 2021 10:46:23 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 4DC283858420
From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/102842] [10 Regression] ICE in
 cselib_record_set at -O2 or greater
Date: Wed, 20 Oct 2021 10:46:23 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: rtl-optimization
X-Bugzilla-Version: 10.3.0
X-Bugzilla-Keywords: ice-on-valid-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: marxin 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: 10.4
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-102842-4-bAzVnT6467@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-102842-4@http.gcc.gnu.org/bugzilla/>
References: <bug-102842-4@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, 20 Oct 2021 10:46:23 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102842

--- Comment #5 from Martin Li=C5=A1ka <marxin at gcc dot gnu.org> ---
And reduced test-case looks like this:

struct Plane {
  using T =3D float;
  T *Row();
};
using ImageF =3D Plane;
long long Mirror_x;
struct EnsurePaddingInPlaceRowByRow {
  void Process() {
    switch (strategy_) {
    case kSlow:
      float *row =3D img_.Row();
      long long xsize =3D x1_;
      while (Mirror_x >=3D xsize)
        if (Mirror_x)
          Mirror_x =3D 2 * xsize - 1;
      *row =3D Mirror_x;
    }
  }
  ImageF img_;
  unsigned x1_;
  enum { kSlow } strategy_;
};
void FinalizeImageRect() {
  EnsurePaddingInPlaceRowByRow ensure_padding;
  ensure_padding.Process();
}=