From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id CFCF939A1818; Fri, 11 Jun 2021 08:20:01 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org CFCF939A1818 From: "marxin at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/101026] New: [12 Regression] ICE Segmentation fault since r12-1329-gce670e4faafb296d Date: Fri, 11 Jun 2021 08:20:00 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Version: 12.0 X-Bugzilla-Keywords: ice-on-valid-code X-Bugzilla-Severity: normal X-Bugzilla-Who: marxin at gcc dot gnu.org 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 cc 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: Fri, 11 Jun 2021 08:20:01 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D101026 Bug ID: 101026 Summary: [12 Regression] ICE Segmentation fault since r12-1329-gce670e4faafb296d Product: gcc Version: 12.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: marxin at gcc dot gnu.org CC: rguenth at gcc dot gnu.org Target Milestone: --- The following fails: $ cat ice.f SUBROUTINE PASSB4 (CC,CH) DIMENSION CC(IDO,4,L1), CH(IDO,L1,*) DO 103 I=3D2,IDO,2 TI4 =3D CC0-CC(I,4,K) CI4 =3D TI1-TI4 CH(I-1,K,4) =3D CI4 CH(I,K,4) =3D CI4 103 CONTINUE END $ gcc ice.f -Ofast -c -frounding-math=20 during GIMPLE pass: vect ice.f:1:23: 1 | SUBROUTINE PASSB4 (CC,CH) | ^ internal compiler error: Segmentation fault 0xf15eda crash_signal /home/marxin/Programming/gcc/gcc/toplev.c:327 0x7ffff786239f ??? ../sysdeps/unix/sysv/linux/sigaction.c:10 0x11d40e2 vect_optimize_slp(vec_info*) /home/marxin/Programming/gcc/gcc/tree-vect-slp.c:3626 0x11b4f3e vect_analyze_loop_2 /home/marxin/Programming/gcc/gcc/tree-vect-loop.c:2332 0x11b51fa vect_analyze_loop(loop*, vec_info_shared*) /home/marxin/Programming/gcc/gcc/tree-vect-loop.c:2986 0x11e6615 try_vectorize_loop_1 /home/marxin/Programming/gcc/gcc/tree-vectorizer.c:1009 0x11e704e vectorize_loops() /home/marxin/Programming/gcc/gcc/tree-vectorizer.c:1243 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See for instructions.=