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 7D5EA385DC35; Thu,  2 Jul 2020 03:15:15 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 7D5EA385DC35
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
 s=default; t=1593659715;
 bh=OI6oqT8ZGx/OhCtKk/cuhXY9VR0hr0YWNAFpv7fWhUs=;
 h=From:To:Subject:Date:In-Reply-To:References:From;
 b=ecJ5zZR5v+osW3gNwl46yFPY04sr8/VMsyE2z2xjo0UPHrAyRSgOvn933YdLzOEPH
 SWEziV4Pon8Xq6JrugSPIJVgV/XtNWLOaanuctpQWsunrgnMxks22G0yWO5s19116g
 32k7z9igyBtoGypm3wg15WxpxujRDrtXEVDRcLOY=
From: "hp at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug bootstrap/95940] [11 Regression] bootstrap broken by
 -Wmaybe-unintialized warnings
Date: Thu, 02 Jul 2020 03:15:15 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: bootstrap
X-Bugzilla-Version: 11.0
X-Bugzilla-Keywords: diagnostic
X-Bugzilla-Severity: normal
X-Bugzilla-Who: hp 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: 11.0
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-95940-4-shS8dkFbnc@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-95940-4@http.gcc.gnu.org/bugzilla/>
References: <bug-95940-4@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: Thu, 02 Jul 2020 03:15:15 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D95940

--- Comment #7 from Hans-Peter Nilsson <hp at gcc dot gnu.org> ---
(In reply to Eric Botcazou from comment #6)
> > From the look of it, something is already miscompiled.
>=20
> No, not at all, it's just warnings turned into errors.

Not obvious, but I see from the comments that people seem to be on the right
track.  Some target-specific thing under the hood (not obvious to me in the
source) in tree-ssanames.c provoking this?

FWIW, this problem did not manifest on neither ppc64le, x86_64 nor aarch64,
same source. (All *-linux.)=