From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 0B91A3857C74; Wed, 7 Oct 2020 10:04:26 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 0B91A3857C74 From: "acoplan at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/97315] [11 Regression] ICE in choose_value, at gimple-ssa-evrp.c:282 since r11-3690-gebc77ce3a4c70730b4e38d68f88693eadbdc8712 Date: Wed, 07 Oct 2020 10:04:25 +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: 10.0 X-Bugzilla-Keywords: ice-on-valid-code X-Bugzilla-Severity: normal X-Bugzilla-Who: acoplan at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 11.0 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: Wed, 07 Oct 2020 10:04:26 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D97315 Alex Coplan changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |acoplan at gcc dot gnu.org --- Comment #1 from Alex Coplan --- Seeing a similar ICE with the following simple C testcase: int a; int b(signed char c, int d) { return c < 0 ? 0 : c >> d; } void e(void) { for (int i =3D 0; i <=3D 0; i++) while (a) b(-(i !=3D 1), i); } $ aarch64-elf-gcc -O2 test.c during GIMPLE pass: evrp test.c: In function 'e': test.c:8:1: internal compiler error: in choose_value, at gimple-ssa-evrp.c:= 282 8 | } | ^ 0x18d93f0 hybrid_folder::choose_value(tree_node*, tree_node*) /home/alecop01/toolchain/src/gcc/gcc/gimple-ssa-evrp.c:282 0x18d94e4 hybrid_folder::value_of_expr(tree_node*, gimple*) /home/alecop01/toolchain/src/gcc/gcc/gimple-ssa-evrp.c:236 0xf8e112 substitute_and_fold_engine::replace_uses_in(gimple*) /home/alecop01/toolchain/src/gcc/gcc/tree-ssa-propagate.c:871 0xf8e912 substitute_and_fold_dom_walker::before_dom_children(basic_block_de= f*) /home/alecop01/toolchain/src/gcc/gcc/tree-ssa-propagate.c:1141 0x18a5d5b dom_walker::walk(basic_block_def*) /home/alecop01/toolchain/src/gcc/gcc/domwalk.c:309 0xf8f885 substitute_and_fold_engine::substitute_and_fold(basic_block_def*) /home/alecop01/toolchain/src/gcc/gcc/tree-ssa-propagate.c:1283 0x18d9828 execute_early_vrp /home/alecop01/toolchain/src/gcc/gcc/gimple-ssa-evrp.c:328 0x18d9bf8 execute /home/alecop01/toolchain/src/gcc/gcc/gimple-ssa-evrp.c:375 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See for instructions.=