From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 49F053858C42; Wed, 17 Jan 2024 20:33:02 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 49F053858C42 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1705523582; bh=MB8VnRNc0epdjCtAfBr0oR/BDaX/rdfv7+GGx1UyC+w=; h=From:To:Subject:Date:From; b=duxDTdmMU3+wVGYEzl3maJYkk/HKyL9au2gmMK6BpdFaETp25/2FL47tujr5iIJYf 6/tw7PD/wNoqc7OImee7js65cUFkiHkVYX1z2897/Sa0O4/J3/QHjIMxzzujY2wF2c FBEymmwKpoVIptLdl96+d0XTo1tWa0CO0WGaTqu8= From: "zsojka at seznam dot cz" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/113459] New: ICE: in as_a, at machmode.h:381 with memset() on a _BitInt() at -O1 and above Date: Wed, 17 Jan 2024 20:33:01 +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: 14.0 X-Bugzilla-Keywords: ice-on-valid-code X-Bugzilla-Severity: normal X-Bugzilla-Who: zsojka at seznam dot cz 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 cf_gcchost cf_gcctarget attachments.created 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=3D113459 Bug ID: 113459 Summary: ICE: in as_a, at machmode.h:381 with memset() on a _BitInt() at -O1 and above Product: gcc Version: 14.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: zsojka at seznam dot cz CC: jakub at gcc dot gnu.org Target Milestone: --- Host: x86_64-pc-linux-gnu Target: x86_64-pc-linux-gnu Created attachment 57119 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D57119&action=3Dedit reduced testcase Compiler output: $ cc1 -quiet -O testcase.c=20 during GIMPLE pass: fre testcase.c: In function 'foo': testcase.c:8:1: internal compiler error: in as_a, at machmode.h:381 8 | } | ^ 0x876149 scalar_int_mode as_a(machine_mode) /repo/gcc-trunk/gcc/machmode.h:381 0x876149 scalar_int_mode as_a(machine_mode) /repo/gcc-trunk/gcc/machmode.h:379 0x876149 vn_reference_lookup_3 /repo/gcc-trunk/gcc/tree-ssa-sccvn.cc:2972 0x16226f7 walk_non_aliased_vuses(ao_ref*, tree_node*, bool, void* (*)(ao_re= f*, tree_node*, void*), void* (*)(ao_ref*, tree_node*, void*, translate_flags*), tree_node* (*)(tree_node*), unsigned int&, void*) /repo/gcc-trunk/gcc/tree-ssa-alias.cc:3914 0x171a4ef vn_reference_lookup(tree_node*, tree_node*, vn_lookup_kind, vn_reference_s**, bool, tree_node**, tree_node*, bool) /repo/gcc-trunk/gcc/tree-ssa-sccvn.cc:4023 0x171e7e7 visit_reference_op_load /repo/gcc-trunk/gcc/tree-ssa-sccvn.cc:5740 0x171e7e7 visit_stmt /repo/gcc-trunk/gcc/tree-ssa-sccvn.cc:6261 0x171ee6b process_bb /repo/gcc-trunk/gcc/tree-ssa-sccvn.cc:8025 0x1720846 do_rpo_vn_1 /repo/gcc-trunk/gcc/tree-ssa-sccvn.cc:8626 0x17223bb execute /repo/gcc-trunk/gcc/tree-ssa-sccvn.cc:8787 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. $ xgcc -v Using built-in specs. COLLECT_GCC=3D/repo/build-gcc-trunk-amd64A/gcc/xgcc Target: x86_64-pc-linux-gnu Configured with: /repo/gcc-trunk//configure --enable-languages=3Dc,c++ --enable-valgrind-annotations --disable-nls --enable-checking=3Dyes,rtl,df,= extra --disable-bootstrap --with-cloog --with-ppl --with-isl --build=3Dx86_64-pc-linux-gnu --host=3Dx86_64-pc-linux-gnu --target=3Dx86_64-pc-linux-gnu --with-ld=3D/usr/bin/x86_64-pc-linux-gnu-ld --with-as=3D/usr/bin/x86_64-pc-linux-gnu-as --disable-libstdcxx-pch --prefix=3D/repo/gcc-trunk//binary-trunk-r14-8193-20240117105849-g334087800= 9a-checking-yes-rtl-df-extra-nobootstrap-amd64 Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 14.0.1 20240117 (experimental) (GCC)=