https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58624
--- Comment #8 from Jason Merrill <jason at gcc dot gnu.org> --- (In reply to Markus Trippelsdorf from comment #7) > static __typeof 0 a __attribute__ ((__weakref__ (""))); > template <typename> class A > { > static __thread int b; > }; The problem with this testcase is that set_decl_tls_model adds A<T>::b, an uninstantiated template, to the symbol table. This ICE was introduced by honza's r211689. I'll deal with the other testcase.