From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 661663858412; Sat, 24 Jun 2023 19:42:13 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 661663858412 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1687635733; bh=kTb4e3XhUdmcOeTV7o0uP/SCknwV4XaIvOCJh3fO34w=; h=From:To:Subject:Date:In-Reply-To:References:From; b=NnJK/Z8jfcmynA10zrSoharqr1jDpjXYUP9LL4t+0aLNVXu2pMiwFfdzZL9cl4ShE w68IjPYXtUKgjX4HeN/9H/J9q046UXFhlYnYHKQzLsXZJeRrNsFN/3ojoJP5TFjMYV BTyJyUlx/tPvb5/jW5RAKz206xPQxmYLoqZXgE+o= From: "zhendong.su at inf dot ethz.ch" To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/110390] ICE on valid code on x86_64-linux-gnu with sel-scheduling: in av_set_could_be_blocked_by_bookkeeping_p, at sel-sched.cc:3609 Date: Sat, 24 Jun 2023 19:42:13 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: rtl-optimization X-Bugzilla-Version: unknown X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: zhendong.su at inf dot ethz.ch 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: Message-ID: In-Reply-To: References: 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 List-Id: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110390 --- Comment #1 from Zhendong Su --- Another reproducer with fewer flags (and affects 12.* and later). Compiler Explorer: https://godbolt.org/z/fYqEz9EWx [603] % gcctk -v Using built-in specs. COLLECT_GCC=3Dgcctk COLLECT_LTO_WRAPPER=3D/local/home/suz/suz-local/software/local/gcc-trunk/bi= n/../libexec/gcc/x86_64-pc-linux-gnu/14.0.0/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: ../gcc-trunk/configure --disable-bootstrap --enable-checking=3Dyes --prefix=3D/local/suz-local/software/local/gcc-trunk --enable-sanitizers --enable-languages=3Dc,c++ --disable-werror --disable-multilib Thread model: posix Supported LTO compression algorithms: zlib gcc version 14.0.0 20230624 (experimental) [master r14-924-gd709841ae0f] (G= CC) [604] % [604] % gcctk -O3 -fsel-sched-pipelining -fschedule-insns -fselective-scheduling2 -fPIC small.c during RTL pass: sched2 small.c: In function =E2=80=98h=E2=80=99: small.c:20:1: internal compiler error: in av_set_could_be_blocked_by_bookkeeping_p, at sel-sched.cc:3609 20 | } | ^ 0x7d635a av_set_could_be_blocked_by_bookkeeping_p ../../gcc-trunk/gcc/sel-sched.cc:3609 0x7d635a code_motion_process_successors ../../gcc-trunk/gcc/sel-sched.cc:6386 0x7d635a code_motion_path_driver ../../gcc-trunk/gcc/sel-sched.cc:6608 0xf85b69 code_motion_process_successors ../../gcc-trunk/gcc/sel-sched.cc:6342 0xf85b69 code_motion_path_driver ../../gcc-trunk/gcc/sel-sched.cc:6608 0xf86c18 find_used_regs ../../gcc-trunk/gcc/sel-sched.cc:3272 0xf86c18 collect_unavailable_regs_from_bnds ../../gcc-trunk/gcc/sel-sched.cc:1586 0xf86c18 find_best_reg_for_expr ../../gcc-trunk/gcc/sel-sched.cc:1649 0xf8976c fill_vec_av_set ../../gcc-trunk/gcc/sel-sched.cc:3784 0xf8976c fill_ready_list ../../gcc-trunk/gcc/sel-sched.cc:4014 0xf8976c find_best_expr ../../gcc-trunk/gcc/sel-sched.cc:4374 0xf8976c fill_insns ../../gcc-trunk/gcc/sel-sched.cc:5535 0xf8976c schedule_on_fences ../../gcc-trunk/gcc/sel-sched.cc:7353 0xf8976c sel_sched_region_2 ../../gcc-trunk/gcc/sel-sched.cc:7491 0xf8a928 sel_sched_region_1 ../../gcc-trunk/gcc/sel-sched.cc:7533 0xf8bf46 sel_sched_region(int) ../../gcc-trunk/gcc/sel-sched.cc:7634 0xf8bf46 sel_sched_region(int) ../../gcc-trunk/gcc/sel-sched.cc:7619 0xf8c0e9 run_selective_scheduling() ../../gcc-trunk/gcc/sel-sched.cc:7720 0xf6d7ed rest_of_handle_sched2 ../../gcc-trunk/gcc/sched-rgn.cc:3743 0xf6d7ed execute ../../gcc-trunk/gcc/sched-rgn.cc:3890 Please submit a full bug report, with preprocessed source (by using -freport-bug). Please include the complete backtrace with any bug report. See for instructions. [605] % [605] % cat small.c static int a; int b, c, d, g; long e, f; extern void l(char *); void h() { char i; int j =3D 1 >> f / b; L: f =3D -(-(f % g || a) * (c && f | e)); if (a > e) l(""); if (f) { l("A"); i =3D j / g; } if (a) goto L; d =3D i; a =3D 0; }=