From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id ABF8F388A81A; Fri, 28 May 2021 17:24:52 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org ABF8F388A81A From: "cnsun at uwaterloo dot ca" To: gcc-bugs@gcc.gnu.org Subject: [Bug c/100817] New: ICE with -O2: in compute_antic, at tree-ssa-pre.c:2513 Date: Fri, 28 May 2021 17:24:52 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c X-Bugzilla-Version: tree-ssa X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: cnsun at uwaterloo dot ca 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: bug_id short_desc product version bug_status bug_severity priority component assigned_to reporter target_milestone Message-ID: 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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 May 2021 17:24:52 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100817 Bug ID: 100817 Summary: ICE with -O2: in compute_antic, at tree-ssa-pre.c:2513 Product: gcc Version: tree-ssa Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: cnsun at uwaterloo dot ca Target Milestone: --- $ gcc-trunk -v Using built-in specs. COLLECT_GCC=3Dgcc-trunk COLLECT_LTO_WRAPPER=3D/scratch/software/gcc-trunk/libexec/gcc/x86_64-pc-lin= ux-gnu/12.0.0/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: /tmp/tmp.EknlexSzGF-gcc-builder/gcc/configure --enable-languages=3Dc,c++,lto --enable-checking-yes --enable-multiarch --prefix=3D/scratch/software/gcc-trunk --disable-bootstrap Thread model: posix Supported LTO compression algorithms: zlib gcc version 12.0.0 20210528 (experimental) [master revision :0e2d976f7:cd62d089f6021fd1ad4537b8182836d15b14514f] (GCC) $ cat mutant.c a; __attribute__((cold)) b () { for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a >=3D 0;) for (; a;) for (; a; a +=3D 2) ; } $ gcc-trunk -O2 mutant.c mutant.c:1:1: warning: data definition has no type or storage class 1 | a; | ^ mutant.c:1:1: warning: type defaults to =E2=80=98int=E2=80=99 in declaratio= n of =E2=80=98a=E2=80=99 [-Wimplicit-int] mutant.c:2:23: warning: return type defaults to =E2=80=98int=E2=80=99 [-Wim= plicit-int] 2 | __attribute__((cold)) b () | ^ during GIMPLE pass: pre mutant.c: In function =E2=80=98b=E2=80=99: mutant.c:2:23: internal compiler error: in compute_antic, at tree-ssa-pre.c:2513 0x7920a1 compute_antic /tmp/tmp.EknlexSzGF-gcc-builder/gcc/gcc/tree-ssa-pre.c:2513 0x7920a1 execute /tmp/tmp.EknlexSzGF-gcc-builder/gcc/gcc/tree-ssa-pre.c:4384 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See for instructions.=