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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/105458] [12/13 Regression] ICE in
 set_relation, at value-relation.cc:609
Date: Tue, 03 May 2022 06:52:59 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105458

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2022-05-03
                 CC|                            |aldyh at gcc dot gnu.org,
                   |                            |amacleod at redhat dot com
     Ever confirmed|0                           |1
   Target Milestone|---                         |12.0
             Status|UNCONFIRMED                 |NEW
           Keywords|                            |ice-checking

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed.  There is the unfolded t3_t > t3_6 which eventually makes us run
into
the assert.  We shouldn't assert that everything is correctly folded so we =
have
to be forgiving here (maybe just not registering anything here).  It might =
be
that when setting name1 =3D=3D name2 that we'd run into compile-time issues.
Andrew should know how to avoid this ICE best.

<bb 3> [local count: 117688337]:
_7 =3D t3_6 > t3_6;
_8 =3D t3_6 =3D=3D j4_5(D);
_9 =3D _8 | _7;
if (_9 !=3D 0)
  goto <bb 4>; [7.19%]
else
  goto <bb 10>; [92.81%]=