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 55FF3385734A; Fri,  9 Sep 2022 13:18:32 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 55FF3385734A
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1662729512;
	bh=xKOwCHR+znhep/742E+rhMheiV+mWQ0KLm9YweF8QP4=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=OGH88KMCEzjzg/S+vg4Wq+s68GwwJjIF5S8IvmqRx8hQnWXRs3jQeh8XlCtMOwj2E
	 K1rFJa23P6fhl8uja5t6u3Gs2T0xG5HXS4nbdvAdt/6QGrP2IvyLXfT4hkEEf3oDV9
	 8wRXhgZJQ0FS94J47FCqdY3ZZQj/NbO7YnUAjItM=
From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/106833] Miss to handle OPAQUE_TYPE specially in
 verify_type
Date: Fri, 09 Sep 2022 13:18:31 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: middle-end
X-Bugzilla-Version: 13.0
X-Bugzilla-Keywords: ice-checking
X-Bugzilla-Severity: normal
X-Bugzilla-Who: cvs-commit at gcc dot gnu.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: 
Message-ID: <bug-106833-4-NJyUC3HCUz@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-106833-4@http.gcc.gnu.org/bugzilla/>
References: <bug-106833-4@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
List-Id: <gcc-bugs.sourceware.org>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106833

--- Comment #13 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Kewen Lin <linkw@gcc.gnu.org>:

https://gcc.gnu.org/g:e230f11e9784eefed316df7dbc5df6ac999841b2

commit r13-2562-ge230f11e9784eefed316df7dbc5df6ac999841b2
Author: Kewen Lin <linkw@linux.ibm.com>
Date:   Fri Sep 9 08:17:21 2022 -0500

    Handle OPAQUE_TYPE specially in verify_type [PR106833]

    As PR106833 shows, cv-qualified opaque type can cause ICE
    during LTO.  It exposes that we missd to handle OPAQUE_TYPE
    well in type verification.  As Richi pointed out, also
    assuming that target will always define TYPE_MAIN_VARIANT
    TYPE_CANONICAL for opaque type, this patch is to check
    both are OPAQUE_TYPE_P and their modes are of MODE_OPAQUE
    class.  Besides, it also checks the only available size
    and alignment information.

            PR middle-end/106833

    gcc/ChangeLog:

            * tree.cc (verify_opaque_type): New function.
            (verify_type): Call verify_opaque_type for OPAQUE_TYPE.

    gcc/testsuite/ChangeLog:

            * gcc.target/powerpc/pr106833.c: New test.=