https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105964
--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jason Merrill <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:d29f61a3291a8c4cff0bd754fa3bb8e9399589bc commit r13-1210-gd29f61a3291a8c4cff0bd754fa3bb8e9399589bc Author: Jason Merrill <ja...@redhat.com> Date: Wed Jun 22 18:19:11 2022 -0400 c++: dependence of baselink [PR105964] helper<token>::c isn't dependent just because we haven't deduced its return type yet. type_dependent_expression_p already knows how to deal with that for bare FUNCTION_DECL, but needs to learn to look through a BASELINK. PR c++/105964 gcc/cp/ChangeLog: * pt.cc (type_dependent_expression_p): Look through BASELINK. gcc/testsuite/ChangeLog: * g++.dg/cpp1z/nontype-auto21.C: New test.