From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 9827A3858D33; Mon, 25 Apr 2022 12:08:20 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 9827A3858D33 From: "acoplan at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/105374] New: [12 Regression] ICE in fold_convert_loc, at fold-const.cc:2580 during GIMPLE pass: reassoc since r12-7338-g884f77b4222289510e1df9db2889b60c5df6fcda Date: Mon, 25 Apr 2022 12:08:17 +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: X-Bugzilla-Severity: normal X-Bugzilla-Who: acoplan 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 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: Mon, 25 Apr 2022 12:08:20 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105374 Bug ID: 105374 Summary: [12 Regression] ICE in fold_convert_loc, at fold-const.cc:2580 during GIMPLE pass: reassoc since r12-7338-g884f77b4222289510e1df9db2889b60c5df6fcda Product: gcc Version: 12.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: acoplan at gcc dot gnu.org Target Milestone: --- The following fails: $ cat t.cc typedef float v4f __attribute__((vector_size(4 * sizeof(float)))); v4f f_x, f_y; long f() { return (f_x < f_y | f_x <=3D f_y)[2]; } $ ./arm-eabi-gcc -c t.cc -march=3Darmv8.1-m.main+mve -mfloat-abi=3Dhard -O during GIMPLE pass: reassoc t.cc: In function 'long int f()': t.cc:3:6: internal compiler error: in fold_convert_loc, at fold-const.cc:25= 80 3 | long f() { return (f_x < f_y | f_x <=3D f_y)[2]; } | ^ 0xcb5136 fold_convert_loc(unsigned int, tree_node*, tree_node*) /home/alecop01/toolchain/src/gcc/gcc/fold-const.cc:2580 0x12ef522 eliminate_redundant_comparison /home/alecop01/toolchain/src/gcc/gcc/tree-ssa-reassoc.cc:2257 0x12ef522 optimize_ops_list /home/alecop01/toolchain/src/gcc/gcc/tree-ssa-reassoc.cc:2448 0x12f5a0b reassociate_bb /home/alecop01/toolchain/src/gcc/gcc/tree-ssa-reassoc.cc:6737 0x12f8496 reassociate_bb /home/alecop01/toolchain/src/gcc/gcc/tree-ssa-reassoc.cc:6899 0x12f8929 do_reassoc /home/alecop01/toolchain/src/gcc/gcc/tree-ssa-reassoc.cc:7011 0x12f8929 execute_reassoc /home/alecop01/toolchain/src/gcc/gcc/tree-ssa-reassoc.cc:7100 0x12f8929 execute /home/alecop01/toolchain/src/gcc/gcc/tree-ssa-reassoc.cc:7141 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. Bisection shows the issue started with r12-7338-g884f77b4222289510e1df9db2889b60c5df6fcda : commit 884f77b4222289510e1df9db2889b60c5df6fcda Author: Christophe Lyon Date: Wed Oct 13 10:16:22 2021 arm: Implement MVE predicates as vectors of booleans=