From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id E37F43858031; Sun, 16 May 2021 17:54:02 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org E37F43858031 From: "cnsun at uwaterloo dot ca" To: gcc-bugs@gcc.gnu.org Subject: [Bug c/100625] New: ICE on gimple program: Segmentation fault, contains_struct_check(tree_node*, tree_node_structure_enum, char const*, int, char const*) Date: Sun, 16 May 2021 17:54:02 +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: Sun, 16 May 2021 17:54:03 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100625 Bug ID: 100625 Summary: ICE on gimple program: Segmentation fault, contains_struct_check(tree_node*, tree_node_structure_enum, char const*, int, char const*) 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.eZIsobWkq2-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 20210514 (experimental) [master revision :e5c3c8afa:f3b1516d9dfd969d7cc1ca6f26dec13478a1c458] (GCC) $ cat mutant.c __GIMPLE foo() { bb1: bb1:; } $ gcc-trunk -fgimple mutant.c mutant.c:2:1: warning: return type defaults to =E2=80=98int=E2=80=99 [-Wimp= licit-int] 2 | foo() { | ^~~ mutant.c: In function =E2=80=98foo=E2=80=99: mutant.c:4:1: error: duplicate label =E2=80=98bb1=E2=80=99 4 | bb1:; | ^~~ mutant.c:3:1: note: previous definition of =E2=80=98bb1=E2=80=99 with type = =E2=80=98void=E2=80=99 3 | bb1: | ^~~ during GIMPLE pass: cfg mutant.c:2:1: internal compiler error: Segmentation fault 2 | foo() { | ^~~ 0xef83e3 crash_signal /tmp/tmp.eZIsobWkq2-gcc-builder/gcc/gcc/toplev.c:327 0xf38755 contains_struct_check(tree_node*, tree_node_structure_enum, char const*, int, char const*) /tmp/tmp.eZIsobWkq2-gcc-builder/gcc/gcc/tree.h:3469 0xf38755 stmt_starts_bb_p /tmp/tmp.eZIsobWkq2-gcc-builder/gcc/gcc/tree-cfg.c:2784 0xf38755 make_blocks_1 /tmp/tmp.eZIsobWkq2-gcc-builder/gcc/gcc/tree-cfg.c:552 0xf44fd6 make_blocks /tmp/tmp.eZIsobWkq2-gcc-builder/gcc/gcc/tree-cfg.c:661 0xf44fd6 build_gimple_cfg /tmp/tmp.eZIsobWkq2-gcc-builder/gcc/gcc/tree-cfg.c:226 0xf44fd6 execute_build_cfg /tmp/tmp.eZIsobWkq2-gcc-builder/gcc/gcc/tree-cfg.c:370 0xf44fd6 execute /tmp/tmp.eZIsobWkq2-gcc-builder/gcc/gcc/tree-cfg.c:409 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See for instructions.=