https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92593
--- Comment #5 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:fa0c6e297b22d5883857d0db4a6a8be0967cb16f commit r10-6457-gfa0c6e297b22d5883857d0db4a6a8be0967cb16f Author: Jason Merrill <ja...@redhat.com> Date: Tue Feb 4 18:49:16 2020 -0500 c++: Fix SEGV with malformed constructor decl. In the testcase, since there's no declaration of T, ref_view(T) declares a non-static data member T of type ref_view, the same type as its enclosing class. Then when we try to do C++20 aggregate class template argument deduction we recursively try to adjust the braced-init-list to match the template class definition until we run out of stack. Fixed by rejecting the template data member. PR c++/92593 * decl.c (grokdeclarator): Reject field of current class type even in a template.
