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 425A73858400; Thu, 26 Aug 2021 09:02:27 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 425A73858400
From: "linkw at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ipa/102059] Incorrect always_inline diagnostic in LTO mode with
 #pragma GCC target("cpu=power10")
Date: Thu, 26 Aug 2021 09:02:26 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: ipa
X-Bugzilla-Version: 11.2.1
X-Bugzilla-Keywords: diagnostic, lto, rejects-valid
X-Bugzilla-Severity: normal
X-Bugzilla-Who: linkw at gcc dot gnu.org
X-Bugzilla-Status: ASSIGNED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: linkw at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-102059-4-jto0RcRMs2@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-102059-4@http.gcc.gnu.org/bugzilla/>
References: <bug-102059-4@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, 26 Aug 2021 09:02:27 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102059

--- Comment #15 from Kewen Lin <linkw at gcc dot gnu.org> ---
(In reply to Florian Weimer from comment #12)
> (In reply to Richard Biener from comment #10)
> > As of HTM it would make the testcase a user error - when using -mcpu=3D=
power10
> > it would require building with -mcpu=3Dpower8 -mno-htm?
>=20
> Or -mcpu=3Dpower8 should imply -mno-htm. It's not 100% compatible for sur=
e,
> but so is removing a feature from a later CPU that was present in an earl=
ier
> version and enabled by default in GCC. I suspect it's better to take the
> compatibility hit at run time, rather than later at run time (once the us=
ers
> get their hands on POWER10 hardware).

Not sure if we faced similar situations before, both power8 and power9 supp=
ort
HTM, looking forward to the inputs from port maintainers and experts.=