https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107542
Bug ID: 107542 Summary: ICE in spaceship_comp_cat, at cp/method.cc:1055 Product: gcc Version: 12.2.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: danakj at orodu dot net Target Milestone: --- Repro: https://godbolt.org/z/KPfsn8hPf Reproduces in 12.2 and trunk on Godbolt.org. Output: <source>: In substitution of 'template<class T, class U> requires Ord<const T*, const U*> constexpr auto operator<=>(const S<T>&, const S<U>&) [with T = int; U = char]': <source>:6:11: required from here <source>:6:11: internal compiler error: in spaceship_comp_cat, at cp/method.cc:1055 6 | { lhs <=> rhs } -> std::same_as<std::strong_ordering>; | ~~~~^~~~~~~ 0x2393c6e internal_error(char const*, ...) ???:0 0xaa9b58 fancy_abort(char const*, int, char const*) ???:0 0xd4a507 cp_build_binary_op(op_location_t const&, tree_code, tree_node*, tree_node*, int) ???:0 0xadb22c build_new_op(op_location_t const&, tree_code, int, tree_node*, tree_node*, tree_node*, tree_node*, tree_node**, int) ???:0 0xd3b412 build_x_binary_op(op_location_t const&, tree_code, tree_node*, tree_code, tree_node*, tree_code, tree_node*, tree_node**, int) ???:0 0xb25576 tsubst_requires_expr(tree_node*, tree_node*, int, tree_node*) ???:0 0xb27052 constraints_satisfied_p(tree_node*, tree_node*) ???:0 0xcdd84a fn_type_unification(tree_node*, tree_node*, tree_node*, tree_node* const*, unsigned int, tree_node*, unification_kind_t, int, conversion**, bool, bool) ???:0 0xadaefe build_new_op(op_location_t const&, tree_code, int, tree_node*, tree_node*, tree_node*, tree_node*, tree_node**, int) ???:0 0xd3b412 build_x_binary_op(op_location_t const&, tree_code, tree_node*, tree_code, tree_node*, tree_code, tree_node*, tree_node**, int) ???:0 0xb25576 tsubst_requires_expr(tree_node*, tree_node*, int, tree_node*) ???:0 0xb2715f evaluate_concept_check(tree_node*) ???:0 0xb18962 maybe_constant_value(tree_node*, tree_node*, bool) ???:0 0xcfdb3f finish_unary_op_expr(unsigned int, tree_code, cp_expr, int) ???:0 0xc872a7 c_parse_file() ???:0 0xdd0579 c_common_parse_file() ???:0 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.