https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84651
Bug ID: 84651 Summary: internal compiler error: in pop_local_binding, at cp/name-lookup.c:2054 Product: gcc Version: 8.0.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: vegard.nossum at gmail dot com Target Milestone: --- Input: void a() { struct { int b struct b } x; } Output: $ xgcc -x c++ -S - <stdin>: In function 'void a()': <stdin>:3:9: error: expected ';' at end of member declaration <stdin>:4:3: error: expected unqualified-id before '}' token <stdin>:4:6: internal compiler error: in pop_local_binding, at cp/name-lookup.c:2054 0xe0cc4f pop_local_binding(tree_node*, tree_node*) /home/vegard/git/gcc/gcc/cp/name-lookup.c:2054 0xbc8eb2 poplevel(int, int, int) /home/vegard/git/gcc/gcc/cp/decl.c:776 0x125b433 do_poplevel(tree_node*) /home/vegard/git/gcc/gcc/cp/semantics.c:451 0x126981c finish_compound_stmt(tree_node*) /home/vegard/git/gcc/gcc/cp/semantics.c:1451 0xf022f2 cp_parser_compound_statement /home/vegard/git/gcc/gcc/cp/parser.c:11228 0xf967eb cp_parser_function_body /home/vegard/git/gcc/gcc/cp/parser.c:21769 0xf967eb cp_parser_ctor_initializer_opt_and_function_body /home/vegard/git/gcc/gcc/cp/parser.c:21804 0xf9f9f5 cp_parser_function_definition_after_declarator /home/vegard/git/gcc/gcc/cp/parser.c:26809 0xfa604d cp_parser_function_definition_from_specifiers_and_declarator /home/vegard/git/gcc/gcc/cp/parser.c:26726 0xfa604d cp_parser_init_declarator /home/vegard/git/gcc/gcc/cp/parser.c:19493 0xfa9757 cp_parser_simple_declaration /home/vegard/git/gcc/gcc/cp/parser.c:13063 0xfaf948 cp_parser_block_declaration /home/vegard/git/gcc/gcc/cp/parser.c:12881 0x1002c05 cp_parser_declaration /home/vegard/git/gcc/gcc/cp/parser.c:12778 0xff9bdb cp_parser_declaration_seq_opt /home/vegard/git/gcc/gcc/cp/parser.c:12654 0xffb203 cp_parser_translation_unit /home/vegard/git/gcc/gcc/cp/parser.c:4561 0xffb203 c_parse_file() /home/vegard/git/gcc/gcc/cp/parser.c:38986 0x15a6ba5 c_common_parse_file() /home/vegard/git/gcc/gcc/c-family/c-opts.c:1132 $ xgcc --version xgcc (GCC) 8.0.1 20180301 (experimental) Built from git c435a9e730c6e8f10da09d58b4fc9aaeb401b0d5 (r258097). It seems to have been introduced between 4.5.3 and 4.6.4. Test case was minimised by C-Reduce.