https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79113
Bug ID: 79113 Summary: ICE inheriting a default constructor Product: gcc Version: 7.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: ed at catmur dot co.uk Target Milestone: --- struct B { B(); }; struct D : B { using B::B; D(char); }; D d; prog.cc:6:3: internal compiler error: Segmentation fault D d; ^ 0xb0569f crash_signal /home/heads/gcc/gcc-source/gcc/toplev.c:333 0x5dc253 build_over_call /home/heads/gcc/gcc-source/gcc/cp/call.c:7902 0x5d7a25 build_new_method_call_1 /home/heads/gcc/gcc-source/gcc/cp/call.c:8786 0x5d7a25 build_new_method_call(tree_node*, tree_node*, vec<tree_node*, va_gc, vl_embed>**, tree_node*, int, tree_node**, int) /home/heads/gcc/gcc-source/gcc/cp/call.c:8856 0x5d84c3 build_special_member_call(tree_node*, tree_node*, vec<tree_node*, va_gc, vl_embed>**, tree_node*, int, int) /home/heads/gcc/gcc-source/gcc/cp/call.c:8387 0x6aad83 expand_default_init /home/heads/gcc/gcc-source/gcc/cp/init.c:1779 0x6aad83 expand_aggr_init_1 /home/heads/gcc/gcc-source/gcc/cp/init.c:1894 0x6ab4d9 build_aggr_init(tree_node*, tree_node*, int, int) /home/heads/gcc/gcc-source/gcc/cp/init.c:1633 0x5f50e5 build_aggr_init_full_exprs /home/heads/gcc/gcc-source/gcc/cp/decl.c:6163 0x5f50e5 check_initializer /home/heads/gcc/gcc-source/gcc/cp/decl.c:6311 0x5f85bb cp_finish_decl(tree_node*, tree_node*, bool, tree_node*, int) /home/heads/gcc/gcc-source/gcc/cp/decl.c:7023 0x686529 cp_parser_init_declarator /home/heads/gcc/gcc-source/gcc/cp/parser.c:19383 0x686b9d cp_parser_simple_declaration /home/heads/gcc/gcc-source/gcc/cp/parser.c:12766 0x6877d5 cp_parser_block_declaration /home/heads/gcc/gcc-source/gcc/cp/parser.c:12592 0x666307 cp_parser_declaration /home/heads/gcc/gcc-source/gcc/cp/parser.c:12489 0x68bc9b cp_parser_declaration_seq_opt /home/heads/gcc/gcc-source/gcc/cp/parser.c:12365 0x68bf82 cp_parser_translation_unit /home/heads/gcc/gcc-source/gcc/cp/parser.c:4369 0x68bf82 c_parse_file() /home/heads/gcc/gcc-source/gcc/cp/parser.c:38356 0x758153 c_common_parse_file() /home/heads/gcc/gcc-source/gcc/c-family/c-opts.c:1107 Versions up to 6.3 reject (no matching function for call to 'D::D()'), I think incorrectly. Current 7.0 trunk ICEs as above. clang accepts since 3.9.0.