https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105008
Bug ID: 105008 Summary: ICE: tree check: expected class 'type', have 'exceptional' (error_mark) in shorten_binary_op, at c-family/c-common.cc:1400 with unsigned _Fract vector Product: gcc Version: 12.0 Status: UNCONFIRMED Keywords: error-recovery Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: zsojka at seznam dot cz Target Milestone: --- Host: x86_64-pc-linux-gnu Target: mips64el-unknown-linux-gnuabi64 Created attachment 52659 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52659&action=edit reduced testcase Compiler output: $ mips64el-unknown-linux-gnuabi64-gcc testcase.c testcase.c: In function 'foo': testcase.c:9:3: error: cannot convert value to a vector 9 | v /= a; | ^ testcase.c:9:3: internal compiler error: tree check: expected class 'type', have 'exceptional' (error_mark) in shorten_binary_op, at c-family/c-common.cc:1400 0x755da1 tree_class_check_failed(tree_node const*, tree_code_class, char const*, int, char const*) /repo/gcc-trunk/gcc/tree.cc:8774 0x5c4262 tree_class_check(tree_node*, tree_code_class, char const*, int, char const*) /repo/gcc-trunk/gcc/tree.h:3574 0x5c4262 shorten_binary_op(tree_node*, tree_node*, tree_node*, bool) /repo/gcc-trunk/gcc/c-family/c-common.cc:1400 0x8de486 build_binary_op(unsigned int, tree_code, tree_node*, tree_node*, bool) /repo/gcc-trunk/gcc/c/c-typeck.cc:12699 0x8eb072 build_modify_expr(unsigned int, tree_node*, tree_node*, tree_code, unsigned int, tree_node*, tree_node*) /repo/gcc-trunk/gcc/c/c-typeck.cc:6300 0x90ae44 c_parser_expr_no_commas /repo/gcc-trunk/gcc/c/c-parser.cc:7567 0x90afa1 c_parser_expression /repo/gcc-trunk/gcc/c/c-parser.cc:10697 0x90b708 c_parser_expression_conv /repo/gcc-trunk/gcc/c/c-parser.cc:10736 0x9006e7 c_parser_statement_after_labels /repo/gcc-trunk/gcc/c/c-parser.cc:6263 0x902cca c_parser_compound_statement_nostart /repo/gcc-trunk/gcc/c/c-parser.cc:5800 0x922c15 c_parser_compound_statement /repo/gcc-trunk/gcc/c/c-parser.cc:5609 0x924698 c_parser_declaration_or_fndef /repo/gcc-trunk/gcc/c/c-parser.cc:2544 0x92c7e3 c_parser_external_declaration /repo/gcc-trunk/gcc/c/c-parser.cc:1779 0x92d22b c_parser_translation_unit /repo/gcc-trunk/gcc/c/c-parser.cc:1652 0x92d22b c_parse_file() /repo/gcc-trunk/gcc/c/c-parser.cc:23357 0x98f2dd c_common_parse_file() /repo/gcc-trunk/gcc/c-family/c-opts.cc:1240 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. $ mips64el-unknown-linux-gnuabi64-gcc -v Using built-in specs. COLLECT_GCC=/repo/gcc-trunk/binary-latest-mips64el/bin/mips64el-unknown-linux-gnuabi64-gcc COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r12-7721-20220319135312-gb60bc913cca-checking-yes-rtl-df-extra-mips64el/bin/../libexec/gcc/mips64el-unknown-linux-gnuabi64/12.0.1/lto-wrapper Target: mips64el-unknown-linux-gnuabi64 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 --with-sysroot=/usr/mips64el-unknown-linux-gnuabi64 --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --target=mips64el-unknown-linux-gnuabi64 --with-ld=/usr/bin/mips64el-unknown-linux-gnuabi64-ld --with-as=/usr/bin/mips64el-unknown-linux-gnuabi64-as --disable-multilib --with-abi=64 --disable-libstdcxx-pch --prefix=/repo/gcc-trunk//binary-trunk-r12-7721-20220319135312-gb60bc913cca-checking-yes-rtl-df-extra-mips64el Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 12.0.1 20220319 (experimental) (GCC)