https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100248
Bug ID: 100248 Summary: ICE with global "default" keyword Product: gcc Version: 12.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: hewillk at gmail dot com Target Milestone: --- 10.2, 10.3, 11 and 12 regression: https://godbolt.org/z/qrvE98Taa #include <compare> struct S {}; auto operator<=>(S&&, S&&) = default; <source>:4:30: internal compiler error: Segmentation fault 4 | auto operator<=>(S&&, S&&) = default; | ^~~~~~~ 0x1cff079 internal_error(char const*, ...) ???:0 0x1366c60 strip_array_types(tree_node*) ???:0 0x9c97d8 cp_type_quals(tree_node const*) ???:0 0x9ba523 cp_build_qualified_type_real(tree_node*, int, int) ???:0 0x82f194 defaultable_fn_check(tree_node*) ???:0 0x7b2cc8 cp_finish_decl(tree_node*, tree_node*, bool, tree_node*, int) ???:0 0x8e1f3d c_parse_file() ???:0 0xa62212 c_common_parse_file() ???:0 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report.