https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94944
--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Patrick Palka <ppa...@gcc.gnu.org>: https://gcc.gnu.org/g:36278f48cbc08c78e4ed588e5a049bd45fd1c55a commit r12-7291-g36278f48cbc08c78e4ed588e5a049bd45fd1c55a Author: Patrick Palka <ppa...@redhat.com> Date: Thu Feb 17 20:20:24 2022 -0500 c++: implicit 'this' in noexcept-spec within class tmpl [PR94944] Here when instantiating the noexcept-spec we fail to resolve the implicit object for the member call A<T>::f() ultimately because maybe_instantiate_noexcept sets current_class_ptr/ref to the dependent 'this' (of type B<T>) rather than the specialized 'this' (of type B<int>). This patch fixes this by making maybe_instantiate_noexcept set current_class_ptr/ref to the specialized 'this' instead, consistent with what tsubst_function_type does when substituting into the trailing return type of a non-static member function. PR c++/94944 gcc/cp/ChangeLog: * pt.cc (maybe_instantiate_noexcept): For non-static member functions, set current_class_ptr/ref to the specialized 'this' instead. gcc/testsuite/ChangeLog: * g++.dg/cpp0x/noexcept34.C: Adjusted expected diagnostics. * g++.dg/cpp0x/noexcept75.C: New test.
