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 751483858434; Thu, 11 May 2023 21:37:15 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 751483858434
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1683841035;
	bh=f9Xv1DbvTU8g/e12jyM9fHCkNEktaa/Ted2Nk/7pMDQ=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=SXM1Go1mHhc91rlOnRlfQXJFRyLU6rKGFyujJnt5gEgy6WmR+tJVE6y/YR5bZ1m9Z
	 v1evutPEwL2FlQPMqCEkavE4KraYwTcPn+c85sZh+fkKzY8wsiZw1XvXQwiOysOLZV
	 V2yzyuYxCzeEB8kHIcvkm1ObzIw4WwdcF8EG55Wc=
From: "burnus at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/109816] [13/14 Regression] r14-321 fix for PR108969
 breaks NVPTX offloading due to __asm (".globl _ZSt21ios_base_library_initv")
Date: Thu, 11 May 2023 21:37:15 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: libstdc++
X-Bugzilla-Version: 13.0
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: burnus 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-109816-4-MjV5FU99SO@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-109816-4@http.gcc.gnu.org/bugzilla/>
References: <bug-109816-4@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=3D109816

--- Comment #8 from Tobias Burnus <burnus at gcc dot gnu.org> ---
First, I want to remark that inside lto_output_toplevel_asms,=20
lto_stream_offload_p is true even with -flto.

However, the following is for output_symtab:

(In reply to Jakub Jelinek from comment #7)
> Not
> --- gcc/lto-cgraph.cc	2023-01-09 13:30:47.105343886 +0100
> +++ gcc/lto-cgraph.cc	2023-05-11 23:05:54.266991677 +0200
> @@ -1023,7 +1023,8 @@ output_symtab (void)
>    if (!asm_nodes_output)
>      {
>        asm_nodes_output =3D true;
> -      lto_output_toplevel_asms ();
> +      if (!lto_stream_offload_p)
> +	lto_output_toplevel_asms ();

This seems to work, kind of. The only case (I found) where it fails is for:
  -flto -fwpa
Because in that case, lto_stream_offload_p =3D=3D 1. While there is a diagn=
ostic
(warning), it still duly continues and uses the wrong value. The diagnostic=
 is:

cc1plus: warning: command-line option '-fwpa' is valid for LTO but not for =
C++=