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 BD8D83857C52; Thu,  1 Apr 2021 10:50:20 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org BD8D83857C52
From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/99858] Wrong throw-expression behaviour with reference to
 pointer
Date: Thu, 01 Apr 2021 10:50:20 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: c++
X-Bugzilla-Version: 10.2.0
X-Bugzilla-Keywords: wrong-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: redi 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: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-99858-4-Asb93XksI1@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-99858-4@http.gcc.gnu.org/bugzilla/>
References: <bug-99858-4@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: Thu, 01 Apr 2021 10:50:20 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99858

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
As requested by https://gcc.gnu.org/bugs/ please provide code, not just a U=
RL.

Reduced:

extern "C" int printf(const char*, ...);

int main() try {
    try {
        throw (void*)1;
    } catch (void*& ptr) {
        printf("%p %p\n", ptr, &ptr);
        ptr =3D nullptr;
        throw;
    }
} catch (void*& ptr) {
    printf("%p %p\n", ptr, &ptr);
}

Not a regression. I'll take a look at the EH code.=