https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100031
Bug ID: 100031 Summary: ICE: in dependent_type_p, at cp/pt.c:26757 Product: gcc Version: 11.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: hewillk at gmail dot com Target Milestone: --- Related to PR 100006, PR 100030. https://godbolt.org/z/TxGMsEv6W template <class... Ts> auto f(Ts...) { []() requires (sizeof(Ts) == 0) {}; } int main() { f(0); } <source>:3:18: internal compiler error: in dependent_type_p, at cp/pt.c:26757 3 | []() requires (sizeof(Ts) == 0) {}; | ^~~~~~~~~~ 0x1d00ea9 internal_error(char const*, ...) ???:0 0x6bb009 fancy_abort(char const*, int, char const*) ???:0 0x8fa4d8 dependent_type_p(tree_node*) ???:0 0x9c561f cxx_sizeof_or_alignof_type(unsigned int, tree_node*, tree_code, bool, bool) ???:0 0x73fdba constraints_satisfied_p(tree_node*, tree_node*) ???:0 0x804780 maybe_add_lambda_conv_op(tree_node*) ???:0 0x94addd tsubst_lambda_expr(tree_node*, tree_node*, int, tree_node*) ???:0 0x91d71f instantiate_decl(tree_node*, bool, bool) ???:0 0x7c7a1e maybe_instantiate_decl(tree_node*) ???:0 0x7c9180 mark_used(tree_node*, int) ???:0 0x6de877 build_new_function_call(tree_node*, vec<tree_node*, va_gc, vl_embed>**, int) ???:0 0x981e5c finish_call_expr(tree_node*, vec<tree_node*, va_gc, vl_embed>**, bool, bool, int) ???:0 0x8e223d c_parse_file() ???:0 0xa614e2 c_common_parse_file() ???:0 Please submit a full bug report, with preprocessed source if appropriate.