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 C2103385380E; Sat,  3 Jul 2021 07:27:41 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org C2103385380E
From: "ebotcazou at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ada/100486] Ada build fails for 32bit Windows
Date: Sat, 03 Jul 2021 07:27:41 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: ada
X-Bugzilla-Version: 11.1.0
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: ebotcazou at gcc dot gnu.org
X-Bugzilla-Status: WAITING
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-100486-4-S6eodWDqEx@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-100486-4@http.gcc.gnu.org/bugzilla/>
References: <bug-100486-4@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: Sat, 03 Jul 2021 07:27:41 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100486

--- Comment #6 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
Thanks.

> '--with-bugurl=3Dhttps://github.com/msys2/MINGW-packages/issues'
> '--with-gnu-as' '--with-gnu-ld' '--with-boot-ldflags=3D-pipe
> -Wl,--dynamicbase,--nxcompat,--no-seh -Wl,--large-address-aware
> -Wl,--disable-dynamicbase -static-libstdc++ -static-libgcc'
> 'LDFLAGS_FOR_TARGET=3D-pipe -Wl,--dynamicbase,--nxcompat,--no-seh
> -Wl,--large-address-aware'
> '--enable-linker-plugin-flags=3DLDFLAGS=3D-static-libstdc++\\ -static-lib=
gcc\\
> -pipe\\ -Wl,--dynamicbase,--nxcompat,--no-seh\\ -Wl,--large-address-aware=
\\
> -Wl,--stack,12582912' '--disable-sjlj-exceptions' '--with-dwarf2'
> 'build_alias=3Di686-w64-mingw32' 'host_alias=3Di686-w64-mingw32'
> 'target_alias=3Di686-w64-mingw32' 'CC=3Dgcc' 'CFLAGS=3D-march=3Di686 -mtu=
ne=3Dgeneric
> -O2 -pipe' 'LDFLAGS=3D-pipe -Wl,--dynamicbase,--nxcompat,--no-seh
> -Wl,--large-address-aware -Wl,--disable-dynamicbase'
> 'CPPFLAGS=3D-D__USE_MINGW_ANSI_STDIO=3D1' 'CXX=3Dg++' 'CXXFLAGS=3D-march=
=3Di686
> -mtune=3Dgeneric -O2 -pipe'
> '--enable-languages=3Dc,ada,c++,fortran,jit,lto,objc,obj-c++'"

AFAICS the failure occurs during stage #2 so the stage #1 compiler might be
miscompiled by the base compiler.  Could you change the -O2 into -O1 above?
If this still does not work, could you change it into -O0?=