From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 7BABB39B8814; Thu, 13 May 2021 00:06:13 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 7BABB39B8814 From: "tlwang at uwaterloo dot ca" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/100349] [11/12 Regression] ICE Segmentation fault during GIMPLE pass: evrp (under -O2 to -Os) Date: Thu, 13 May 2021 00:06:13 +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: X-Bugzilla-Severity: normal X-Bugzilla-Who: tlwang at uwaterloo dot ca X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 11.2 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc 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 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: Thu, 13 May 2021 00:06:13 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100349 Theodore Wang changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |tlwang at uwaterloo dot ca --- Comment #3 from Theodore Wang --- A possible duplicate: $ /home/cnsun/usr/bin/gcc-trunk -v Using built-in specs. COLLECT_GCC=3D/home/cnsun/usr/bin/gcc-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.BriefQJ2R3-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 20210511 (experimental) [master revision :61d4686bb:71d38ec80008afdbb9a059253407d80598b765c0] (GCC) $ cat program3.c int a; void c() { char b; d: for (;;) { b =3D -16; for (; b; b =3D ({ unsigned char e =3D b; e + 1; })) for (;;) { if (a) break; unsigned f =3D b; goto d; } } } $ /home/cnsun/usr/bin/gcc-trunk -O2 -c program3.c during GIMPLE pass: evrp program3.c: In function =E2=80=98c=E2=80=99: program3.c:18:1: internal compiler error: Segmentation fault 18 | } | ^ 0xef6d63 crash_signal /tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/toplev.c:327 0x12630f3 bounds_of_var_in_loop(tree_node**, tree_node**, range_query*, loo= p*, gimple*, tree_node*) /tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/vr-values.c:1658 0x191d98d gimple_ranger::range_of_ssa_name_with_loop_info(irange&, tree_nod= e*, loop*, gphi*) /tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimple-range.cc:1229 0x191dd2b gimple_ranger::range_of_phi(irange&, gphi*) /tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimple-range.cc:568 0x191e15d gimple_ranger::calc_stmt(irange&, gimple*, tree_node*) /tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimple-range.cc:376 0x191e514 gimple_ranger::range_of_stmt(irange&, gimple*, tree_node*) /tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimple-range.cc:1077 0x19192a2 gimple_ranger::range_of_expr(irange&, tree_node*, gimple*) /tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimple-range.cc:960 0x120f8b4 range_query::value_of_expr(tree_node*, gimple*) /tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/value-query.cc:86 0x192b125 hybrid_folder::value_of_expr(tree_node*, gimple*) /tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimple-ssa-evrp.c:235 0x10ab78d substitute_and_fold_dom_walker::before_dom_children(basic_block_d= ef*) /tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/tree-ssa-propagate.c:776 0x18ed787 dom_walker::walk(basic_block_def*) /tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/domwalk.c:309 0x10aad29 substitute_and_fold_engine::substitute_and_fold(basic_block_def*) /tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/tree-ssa-propagate.c:987 0x192ad8e execute_early_vrp /tmp/tmp.BriefQJ2R3-gcc-builder/gcc/gcc/gimple-ssa-evrp.c:349 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See for instructions.=