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 2CB4E3858282; Fri, 22 Mar 2024 14:08:45 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 2CB4E3858282
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1711116525;
	bh=AT/bSqAOOQ7tiWmAV1Gq3Aji9NQBbeNvV80LihfCvsw=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=OnkcQRcXTrsbx5Wir8G1A+TXIM8+0YRRAMifmoPOAJksDLmulaqL8RILgQa/gUyQp
	 bW5SA7ewJGLRCgDfVa1stITE6NU0zfD0F9p8QbcUvpepGaWNkuS7MdeMUOIsC+EMZc
	 lj3CpoBTNDRuqoBsIzKauBkbzR58Sw0aFeokH39o=
From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libgcc/111731] [13/14 regression] gcc_assert is hit at
 libgcc/unwind-dw2-fde.c#L291
Date: Fri, 22 Mar 2024 14:08:43 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: libgcc
X-Bugzilla-Version: 14.0
X-Bugzilla-Keywords: wrong-code
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: 13.3
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-111731-4-f75ZM1oj0y@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-111731-4@http.gcc.gnu.org/bugzilla/>
References: <bug-111731-4@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=3D111731

--- Comment #20 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Thomas Neumann <tneumann@gcc.gnu.org>:

https://gcc.gnu.org/g:a364148530c28645ce87adbc58a66c9f32a325ab

commit r14-9620-ga364148530c28645ce87adbc58a66c9f32a325ab
Author: Thomas Neumann <tneumann@users.sourceforge.net>
Date:   Mon Mar 11 14:35:20 2024 +0100

    handle unwind tables that are embedded within unwinding code [PR111731]

    Original bug report: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D111=
731

    The unwinding mechanism registers both the code range and the unwind
    table itself within a b-tree lookup structure. That data structure
    assumes that is consists of non-overlappping intervals. This
    becomes a problem if the unwinding table is embedded within the
    code itself, as now the intervals do overlap.

    To fix this problem we now keep the unwind tables in a separate
    b-tree, which prevents the overlap.

    libgcc/ChangeLog:
            PR libgcc/111731
            * unwind-dw2-fde.c: Split unwind ranges if they contain the
            unwind table.=