https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65817
Bug ID: 65817 Summary: libcc1: ICE: SEGV: c_incomplete_type_error() Product: gcc Version: 6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: plugins Assignee: unassigned at gcc dot gnu.org Reporter: jan.kratochvil at redhat dot com CC: pmuldoon at redhat dot com Host: x86_64-linux-gnu Target: x86_64-linux-gnu r222230 Current libcc1 uses just: make_node (RECORD_TYPE) which crashes on: if (TREE_CODE (TYPE_NAME (type)) == IDENTIFIER_NODE) as TYPE_NAME (type) == NULL . Actual: *** WARNING *** there are active plugins, do not report this as a bug unless you can reproduce it without enabling any plugins. Event | Plugins PLUGIN_PRE_GENERICIZE | libcc1plugin PLUGIN_GGC_MARKING | libcc1plugin PLUGIN_PRAGMAS | libcc1plugin gdb command line:1:1: internal compiler error: Segmentation fault 0xb1c4af crash_signal ../../gccgitatsign/gcc/toplev.c:383 0x618794 c_incomplete_type_error(tree_node const*, tree_node const*) ../../gccgitatsign/gcc/c/c-typeck.c:282 0x623750 c_incomplete_type_error(tree_node const*, tree_node const*) ../../gccgitatsign/gcc/c/c-typeck.c:235 0x623750 build_component_ref(unsigned int, tree_node*, tree_node*) ../../gccgitatsign/gcc/c/c-typeck.c:2304 0x654fb3 c_parser_postfix_expression_after_primary ../../gccgitatsign/gcc/c/c-parser.c:7925 0x6478f6 c_parser_postfix_expression ../../gccgitatsign/gcc/c/c-parser.c:7715 0x649f5a c_parser_unary_expression ../../gccgitatsign/gcc/c/c-parser.c:6602 0x65122f c_parser_cast_expression ../../gccgitatsign/gcc/c/c-parser.c:6440 0x651412 c_parser_binary_expression ../../gccgitatsign/gcc/c/c-parser.c:6255 0x651f75 c_parser_conditional_expression ../../gccgitatsign/gcc/c/c-parser.c:6031 0x652560 c_parser_expr_no_commas ../../gccgitatsign/gcc/c/c-parser.c:5949 0x652c52 c_parser_expression ../../gccgitatsign/gcc/c/c-parser.c:8022 0x653689 c_parser_expression_conv ../../gccgitatsign/gcc/c/c-parser.c:8055 0x661978 c_parser_statement_after_labels ../../gccgitatsign/gcc/c/c-parser.c:5115 0x663173 c_parser_compound_statement_nostart ../../gccgitatsign/gcc/c/c-parser.c:4701 0x66399e c_parser_compound_statement ../../gccgitatsign/gcc/c/c-parser.c:4538 0x661a67 c_parser_statement_after_labels ../../gccgitatsign/gcc/c/c-parser.c:4964 0x663173 c_parser_compound_statement_nostart ../../gccgitatsign/gcc/c/c-parser.c:4701 0x66399e c_parser_compound_statement ../../gccgitatsign/gcc/c/c-parser.c:4538 0x65fc80 c_parser_declaration_or_fndef ../../gccgitatsign/gcc/c/c-parser.c:1982 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <http://gcc.gnu.org/bugs.html> for instructions. Compilation failed. Expected: gdb command line:1:1: error: invalid use of incomplete typedef ‘({anonymous})’ 1586c8fbaf0116931ffacd1746a6540c81c2d438 GDB commit