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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ipa/114985] [15 regression] internal compiler error: in
 discriminator_fail during stage2
Date: Wed, 08 May 2024 17:06:35 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D114985

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |15.0
           Keywords|                            |needs-reduction
                 CC|                            |pinskia at gcc dot gnu.org
          Component|bootstrap                   |ipa

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Aldy Hernandez from comment #4)
>=20
> If <POINTER> =3D <POINTER> OP_EQUAL <POINTER> is valid gimple, then we sh=
ould
> change operator_equal::fold_range() to accept all pointer operands.  If n=
ot,
> then we need to change the IPA pass.
>=20
> I would appreciate if an IL expert could opine here.

`POINTER =3D POINTER CMP POINTER` should be invalid gimple as far as I can =
tell.
The result of CMP should be a boolean type (except for vector compares wher=
e it
is a vector boolean type). We have ran into these issues before with pointer
types even.

I might get some time later today to reduce the testcase too.=