From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id AA8993858D20; Fri, 11 Aug 2023 09:59:01 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org AA8993858D20 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1691747941; bh=ocOW5bC7MCryFKUohb6Attdb2WKtrY0PxvKIg0yetF8=; h=From:To:Subject:Date:From; b=OmWj906TEVad1H7iWs8BQ9kNQeXdDDAcUBNpcSNJ4d2jv/uck2qQZGgQzGZc4xLvU 4jIZ8C4JatuBNlfLAGKBuYqgIi9VJXLpRiyOoeZUII6oABTdwhiT+F1PVzKELwT1Es YRI5sN3Z3+52oUfh2xsL840b8FLM3yliGE5DLu78= From: "jeremy.bennett at embecosm dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/110989] New: RISC-V vector ICE due to invalid tree code in GIMPLE vect pass Date: Fri, 11 Aug 2023 09:59:00 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: middle-end X-Bugzilla-Version: 14.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: jeremy.bennett at embecosm dot com 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 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=3D110989 Bug ID: 110989 Summary: RISC-V vector ICE due to invalid tree code in GIMPLE vect pass Product: gcc Version: 14.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: middle-end Assignee: unassigned at gcc dot gnu.org Reporter: jeremy.bennett at embecosm dot com Target Milestone: --- Created attachment 55722 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D55722&action=3Dedit C source of the testcase The following code (testcase.c) causes an ICE when using RISC-V vector as target. int a, b, c; double *d; void e() { double f; for (; c; c++, d--) f =3D *d ?: *(&a + c); b =3D f; } Compiled with: riscv64-unknown-linux-gnu-gcc -march=3Drv64gcv -mabi=3Dlp64d -c \ -Ofast --param=3Driscv-autovec-preference=3Dscalable testcase.c The output is: during GIMPLE pass: vect testcase.c: In function 'e': testcase.c:3:6: internal compiler error: tree check: expected class 'type', have 'exceptional' () in build_int_cst, at tree.cc:1507 3 | void e() { | ^ 0x914c99 tree_class_check_failed(tree_node const*, tree_code_class, char const*, int, char const*) /home/jeremy/gittrees/mustang/gcc/gcc/tree.cc:8949 0x91e2c7 tree_class_check(tree_node*, tree_code_class, char const*, int, ch= ar const*) /home/jeremy/gittrees/mustang/gcc/gcc/tree.h:3700 0x91e2c7 build_int_cst(tree_node*, poly_int<2u, long>) /home/jeremy/gittrees/mustang/gcc/gcc/tree.cc:1507 0x20f3e2d vectorizable_load /home/jeremy/gittrees/mustang/gcc/gcc/tree-vect-stmts.cc:10719 0x2100ee5 vect_transform_stmt(vec_info*, _stmt_vec_info*, gimple_stmt_iterator*, _slp_tree*, _slp_instance*) /home/jeremy/gittrees/mustang/gcc/gcc/tree-vect-stmts.cc:12337 0x131f464 vect_transform_loop_stmt /home/jeremy/gittrees/mustang/gcc/gcc/tree-vect-loop.cc:11039 0x13442bc vect_transform_loop(_loop_vec_info*, gimple*) /home/jeremy/gittrees/mustang/gcc/gcc/tree-vect-loop.cc:11488 0x138611f vect_transform_loops /home/jeremy/gittrees/mustang/gcc/gcc/tree-vectorizer.cc:1004 0x138679c try_vectorize_loop_1 /home/jeremy/gittrees/mustang/gcc/gcc/tree-vectorizer.cc:1150 0x138679c try_vectorize_loop /home/jeremy/gittrees/mustang/gcc/gcc/tree-vectorizer.cc:1180 0x1386b44 execute /home/jeremy/gittrees/mustang/gcc/gcc/tree-vectorizer.cc:1296 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. System information ------------------ Using built-in specs. COLLECT_GCC=3Driscv64-unknown-linux-gnu-gcc COLLECT_LTO_WRAPPER=3D/home/jeremy/gittrees/mustang/install/libexec/gcc/ris= cv64-unknown-linux-gnu/14.0.0/lto-wrapper Target: riscv64-unknown-linux-gnu Configured with: /home/jeremy/gittrees/mustang/gcc/configure --target=3Driscv64-unknown-linux-gnu --prefix=3D/home/jeremy/gittrees/mustang/install --with-sysroot=3D/home/jeremy/gittrees/mustang/install/sysroot --with-pkgversion=3Dg68783211f66 --with-system-zlib --enable-shared --enabl= e-tls --enable-languages=3Dc,c++,fortran --disable-libmudflap --disable-libssp --disable-libquadmath --disable-libsanitizer --disable-nls --disable-bootst= rap --src=3D/home/jeremy/gittrees/mustang/gcc --enable-multilib --with-abi=3Dlp= 64d --with-arch=3Drv64gc --with-tune=3D --with-isa-spec=3D20191213 'CFLAGS_FOR_= TARGET=3D-O2 -mcmodel=3Dmedany' 'CXXFLAGS_FOR_TARGET=3D-O2 -mcmodel=3Dmedany' Thread model: posix Supported LTO compression algorithms: zlib gcc version 14.0.0 20230811 (experimental) (g68783211f66)=