From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 311363857BB5; Thu, 13 Oct 2022 09:10:16 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 311363857BB5 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1665652216; bh=/NsTQKsIKRM57x9kFW3DAWKFMHP+OnaH7A2VVkgCvgk=; h=From:To:Subject:Date:From; b=npfsLC2kE5T/yzkbm+J8vyUhbXh/UG0Xq7gSDfz3rNfRuujDl8OvKDBYlr8kuECsV NTu97oixjwyRmWn22SkEPj3Fhre3U4hzhm8o/NIb4GuxVRJWiWYpbKGBmYCJers8WO 2qQLSjRmY0PQOT0/u+DN9u8Ohsy+zbpMi8psO21k= From: "shaohua.li at inf dot ethz.ch" To: gcc-bugs@gcc.gnu.org Subject: [Bug c/107246] New: gcc trunk crash in verify_gimple_in_cfg Date: Thu, 13 Oct 2022 09:10:15 +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: 13.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: shaohua.li 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: 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 List-Id: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D107246 Bug ID: 107246 Summary: gcc trunk crash in verify_gimple_in_cfg Product: gcc Version: 13.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: shaohua.li at inf dot ethz.ch Target Milestone: --- % gcc-tk -v Using built-in specs. COLLECT_GCC=3Dgcc-tk COLLECT_LTO_WRAPPER=3D/zdata/shaoli/compilers/ccbuilder-compilers/gcc-7c059= 880fca175589efc8e06ef458020a005658d/libexec/gcc/x86_64-pc-linux-gnu/13.0.0/= lto-wrapper Target: x86_64-pc-linux-gnu Configured with: ../configure --disable-multilib --disable-bootstrap --enable-languages=3Dc,c++ --prefix=3D/zdata/shaoli/compilers/ccbuilder-compilers/gcc-7c059880fca17558= 9efc8e06ef458020a005658d Thread model: posix Supported LTO compression algorithms: zlib gcc version 13.0.0 20221013 (experimental) (GCC) % % gcc-tk -w -O0 a.c % % gcc-tk -w -O3 a.c a.c: In function =E2=80=98e=E2=80=99: a.c:8:1: error: invalid position or size operand to =E2=80=98bit_field_ref= =E2=80=99 8 | e() { | ^ _ifc__16 =3D BIT_FIELD_REF <_ifc__15, 12, 0xffffffffffffffffffffffffffffffc= 0>; during GIMPLE pass: ifcvt a.c:8:1: internal compiler error: verify_gimple failed 0x205825e internal_error(char const*, ...) ???:0 0x10890f1 verify_gimple_in_cfg(function*, bool) ???:0 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. % % cat a.c struct { long a; signed : 9; signed : 30; unsigned b : 12 } c; d; e() { for (; d;) f(c.b); } % Compiler explorer: https://godbolt.org/z/8aGhfE5PM=