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 826523857C52; Fri, 24 Sep 2021 07:58:00 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 826523857C52
From: "dcb314 at hotmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/102087] [12 Regression] ICE on valid code at
 -O3 on x86_64-linux-gnu: in determine_exit_conditions, at
 tree-ssa-loop-manip.c:1049 since r12-3136-g3673dcf6d6baeb67
Date: Fri, 24 Sep 2021 07:58:00 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: tree-optimization
X-Bugzilla-Version: 12.0
X-Bugzilla-Keywords: ice-on-valid-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: dcb314 at hotmail dot com
X-Bugzilla-Status: REOPENED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 12.0
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-102087-4-n5rwAKpfQz@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-102087-4@http.gcc.gnu.org/bugzilla/>
References: <bug-102087-4@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: Fri, 24 Sep 2021 07:58:00 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102087

--- Comment #13 from David Binderman <dcb314 at hotmail dot com> ---
The code in comment 8 still seems to fail:

$ /home/dcb/gcc/results/bin/gcc -c -O3 -w -march=3Dbdver2 bug760.c=20
bug760.c: In function =E2=80=98Gif_ClipImage=E2=80=99:
bug760.c:3:1: error: type mismatch in binary expression
    3 | Gif_ClipImage() {
      | ^~~~~~~~~~~~~
unsigned int

int

int

_18 =3D Gif_ClipImage_gfi_1.0_1 + -1;
bug760.c:3:1: error: type mismatch in binary expression
unsigned int

int

int

_12 =3D Gif_ClipImage_gfi_1.0_1 + -1;
during GIMPLE pass: aprefetch
bug760.c:3:1: internal compiler error: verify_gimple failed
0xdac31a verify_gimple_in_cfg(function*, bool)
        ../../trunk.git/gcc/tree-cfg.c:5576

$ /home/dcb/gcc/results/bin/gcc -v=20
Using built-in specs.
COLLECT_GCC=3D/home/dcb/gcc/results/bin/gcc
COLLECT_LTO_WRAPPER=3D/home/dcb/gcc/results.20210924/libexec/gcc/x86_64-pc-=
linux-g
nu/12.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../trunk.git/configure --prefix=3D/home/dcb/gcc/results.20=
210924=20
--disable-bootstrap --disable-multilib --disable-werror
--with-pkgversion=3D29c928
57039d0a10 --enable-checking=3Ddf,extra,fold,rtl,yes
--enable-languages=3Dc,c++,fort
ran
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 12.0.0 20210924 (experimental) (29c92857039d0a10)=