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 8AFE0386F025; Mon, 20 Apr 2020 09:24:16 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 8AFE0386F025
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
 s=default; t=1587374656;
 bh=5bGRHUGsz9+v4HVltCSzWtvixfQs2AV4kDbiO9Eu6aE=;
 h=From:To:Subject:Date:In-Reply-To:References:From;
 b=ZvKkN0A74sOPesUCj/lfnnZ/BhxWHwOcAl/hEd+ePNat3W7idDrbekHSGfvYeBvXv
 YpuoWk1WE6fndyKCU6IHkGrGSQ4iflYe5utG32EzyLXdaos9qGml5mLGK1yJL5UUrL
 0LanXGTbGcWjrdU23ZwCA49IBUn/MQNrnYNYtATQ=
From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/33799] Return value's destructor not executed when a local
 variable's destructor throws
Date: Mon, 20 Apr 2020 09:24:16 +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: 4.2.1
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: major
X-Bugzilla-Who: redi at gcc dot gnu.org
X-Bugzilla-Status: REOPENED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: jason at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 10.0
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: bug_status resolution
Message-ID: <bug-33799-4-WFVo2qHNMu@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-33799-4@http.gcc.gnu.org/bugzilla/>
References: <bug-33799-4@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: <http://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: <http://gcc.gnu.org/mailman/listinfo/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=subscribe>
X-List-Received-Date: Mon, 20 Apr 2020 09:24:16 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D33799

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|FIXED                       |---

--- Comment #15 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Reopening. Modified version of g++.dg/eh/return1.C showing the remaining bu=
g,
in the new i() function:

// PR c++/33799
// { dg-do run }

extern "C" void abort();

int c, d;

#if __cplusplus >=3D 201103L
#define THROWS noexcept(false)
#else
#define THROWS
#endif

struct X
{
  X(bool throws) : throws_(throws) { ++c; }
  X(const X& x) : throws_(x.throws_) { ++c; }
  ~X() THROWS
  {
    ++d;
    if (throws_) { throw 1; }
  }
private:
  bool throws_;
};

X f()
{
  X x(true);
  return X(false);
}

X g()
{
  return X(true),X(false);
}

void h()
{
#if __cplusplus >=3D 201103L
  []{ return X(true),X(false); }();
#endif
}

X i()
{
  try {
    X x(true);
    return X(false);
  } catch(...) {}
  return X(false);
}

int main()
{
  try { f(); }
  catch (...) {}

  try { g(); }
  catch (...) {}

  try { h(); }
  catch (...) {}

  try { i(); }
  catch (...) {}

  if (c !=3D d)
    throw;
}=