From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 353E93858D39; Sun, 26 Dec 2021 15:20:55 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 353E93858D39 From: "zsojka at seznam dot cz" To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/103834] New: ICE: qsort comparator non-negative on sorted output: 1 with custom flags Date: Sun, 26 Dec 2021 15:20:55 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: rtl-optimization X-Bugzilla-Version: 12.0 X-Bugzilla-Keywords: ice-on-valid-code X-Bugzilla-Severity: normal X-Bugzilla-Who: zsojka at seznam dot cz 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 keywords bug_severity priority component assigned_to reporter target_milestone cf_gcchost cf_gcctarget attachments.created 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: Sun, 26 Dec 2021 15:20:55 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103834 Bug ID: 103834 Summary: ICE: qsort comparator non-negative on sorted output: 1 with custom flags Product: gcc Version: 12.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: rtl-optimization Assignee: unassigned at gcc dot gnu.org Reporter: zsojka at seznam dot cz Target Milestone: --- Host: x86_64-pc-linux-gnu Target: x86_64-pc-linux-gnu Created attachment 52060 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D52060&action=3Dedit reduced testcase Compiler output: $ x86_64-pc-linux-gnu-gcc -O2 -fno-guess-branch-probability -fharden-conditional-branches -fno-sched-critical-path-heuristic -fno-peeph= ole2 -fsched2-use-superblocks testcase.C=20 testcase.C: In member function 'virtual void C::_ZThn8_N1C3fooEi(int)': testcase.C:15:16: error: qsort comparator non-negative on sorted output: 1 15 | virtual void foo (int); | ^~~ during RTL pass: sched2 testcase.C:15:16: internal compiler error: qsort checking failed 0xdd17db qsort_chk_error /repo/gcc-trunk/gcc/vec.c:204 0xdd18ed qsort_chk(void*, unsigned long, unsigned long, int (*)(void const*, void const*, void*), void*) /repo/gcc-trunk/gcc/vec.c:246 0x27f18d5 gcc_qsort(void*, unsigned long, unsigned long, int (*)(void const= *, void const*)) /repo/gcc-trunk/gcc/sort.cc:270 0x2605888 ready_sort_real /repo/gcc-trunk/gcc/haifa-sched.c:3095 0x260dfb4 ready_sort /repo/gcc-trunk/gcc/haifa-sched.c:3111 0x260dfb4 schedule_block(basic_block_def**, void*) /repo/gcc-trunk/gcc/haifa-sched.c:6718 0x26e5f1b schedule_ebb(rtx_insn*, rtx_insn*, bool) /repo/gcc-trunk/gcc/sched-ebb.c:536 0x26e6642 schedule_ebbs() /repo/gcc-trunk/gcc/sched-ebb.c:655 0x15faf6c rest_of_handle_sched2 /repo/gcc-trunk/gcc/sched-rgn.c:3740 0x15faf6c execute /repo/gcc-trunk/gcc/sched-rgn.c:3878 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See for instructions. $ x86_64-pc-linux-gnu-gcc -v Using built-in specs. COLLECT_GCC=3D/repo/gcc-trunk/binary-latest-amd64/bin/x86_64-pc-linux-gnu-g= cc COLLECT_LTO_WRAPPER=3D/repo/gcc-trunk/binary-trunk-r12-6113-20211224170936-= g8f921393e33-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc= /x86_64-pc-linux-gnu/12.0.0/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: /repo/gcc-trunk//configure --enable-languages=3Dc,c++ --enable-valgrind-annotations --disable-nls --enable-checking=3Dyes,rtl,df,= extra --disable-bootstrap --with-cloog --with-ppl --with-isl --build=3Dx86_64-pc-linux-gnu --host=3Dx86_64-pc-linux-gnu --target=3Dx86_64-pc-linux-gnu --with-ld=3D/usr/bin/x86_64-pc-linux-gnu-ld --with-as=3D/usr/bin/x86_64-pc-linux-gnu-as --disable-libstdcxx-pch --prefix=3D/repo/gcc-trunk//binary-trunk-r12-6113-20211224170936-g8f921393e= 33-checking-yes-rtl-df-extra-nobootstrap-amd64 Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 12.0.0 20211224 (experimental) (GCC)=