https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113967
Bug ID: 113967 Summary: [14 Regression] ICE: in exact_div, at poly-int.h:2156 with -O -mavx512f 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 Target Milestone: --- Host: x86_64-pc-linux-gnu Target: x86_64-pc-linux-gnu Created attachment 57445 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57445&action=edit reduced testcase Compiler output: $ x86_64-pc-linux-gnu-gcc -O -mavx512f testcase.c during GIMPLE pass: forwprop testcase.c: In function 'bar3': testcase.c:25:1: internal compiler error: in exact_div, at poly-int.h:2156 25 | } | ^ 0x8f2762 poly_int<1u, poly_result<unsigned long, if_nonpoly<unsigned long, unsigned long, poly_int_traits<unsigned long>::is_poly>::type, poly_coeff_pair_traits<unsigned long, if_nonpoly<unsigned long, unsigned long, poly_int_traits<unsigned long>::is_poly>::type>::result_kind>::type> exact_div<1u, unsigned long, unsigned long>(poly_int<1u, unsigned long> const&, unsigned long) /repo/gcc-trunk/gcc/poly-int.h:2156 0x8f2762 poly_int<1u, poly_result<unsigned long, if_nonpoly<unsigned long, unsigned long, poly_int_traits<unsigned long>::is_poly>::type, poly_coeff_pair_traits<unsigned long, if_nonpoly<unsigned long, unsigned long, poly_int_traits<unsigned long>::is_poly>::type>::result_kind>::type> exact_div<1u, unsigned long, unsigned long>(poly_int<1u, unsigned long> const&, unsigned long) /repo/gcc-trunk/gcc/poly-int.h:2150 0x8f2762 gimple_simplify_BIT_INSERT_EXPR(gimple_match_op*, gimple**, tree_node* (*)(tree_node*), code_helper, tree_node*, tree_node*, tree_node*, tree_node*) /repo/build-gcc-trunk-amd64/gcc/gimple-match-5.cc:16981 0x1cd5853 gimple_resimplify3 /repo/gcc-trunk/gcc/gimple-match-exports.cc:1107 0x1cd6a12 gimple_simplify(gimple*, gimple_match_op*, gimple**, tree_node* (*)(tree_node*), tree_node* (*)(tree_node*)) /repo/gcc-trunk/gcc/gimple-match-exports.cc:898 0x116c817 fold_stmt_1 /repo/gcc-trunk/gcc/gimple-fold.cc:6359 0x166c5d5 execute /repo/gcc-trunk/gcc/tree-ssa-forwprop.cc:3950 Please submit a full bug report, with preprocessed source (by using -freport-bug). Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> for instructions. $ x86_64-pc-linux-gnu-gcc -v Using built-in specs. COLLECT_GCC=/repo/gcc-trunk/binary-latest-amd64/bin/x86_64-pc-linux-gnu-gcc COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r14-9043-20240217001708-gd70f155b074-checking-yes-rtl-df-extra-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/14.0.1/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++ --enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra --with-cloog --with-ppl --with-isl --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --target=x86_64-pc-linux-gnu --with-ld=/usr/bin/x86_64-pc-linux-gnu-ld --with-as=/usr/bin/x86_64-pc-linux-gnu-as --disable-libstdcxx-pch --prefix=/repo/gcc-trunk//binary-trunk-r14-9043-20240217001708-gd70f155b074-checking-yes-rtl-df-extra-amd64 Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 14.0.1 20240217 (experimental) (GCC)