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 14BDD3858C3A; Mon,  7 Feb 2022 09:42:45 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 14BDD3858C3A
From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/104407] [10/11/12 Regression] '-fcompare-debug' failure
 (length) w/ -std=c++17 -O1
Date: Mon, 07 Feb 2022 09:42:44 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: target
X-Bugzilla-Version: 12.0
X-Bugzilla-Keywords: compare-debug-failure
X-Bugzilla-Severity: normal
X-Bugzilla-Who: rguenth at gcc dot gnu.org
X-Bugzilla-Status: NEW
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P2
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 10.4
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-104407-4-mcwNCNXh3F@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-104407-4@http.gcc.gnu.org/bugzilla/>
References: <bug-104407-4@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: Mon, 07 Feb 2022 09:42:45 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D104407

--- Comment #10 from Richard Biener <rguenth at gcc dot gnu.org> ---
So at least

  /* Generate the RTL even if early_dwarf to force mangling of all refered =
to
     symbols.  */
  rtl =3D rtl_for_decl_init (init, type);
  if (rtl && !early_dwarf)

doesn't apply anymore since we mangle all globals in free-lang-data.  But of
course we do not actually run free-lang-data without -flto ...
assign_assembler_name_if_needed is the part that's needed.  I suppose we
could, in dwarf2out, do a walk_tree on the initializer and call that
function on each decl.=