[Bug c++/69323] [4.9/5/6 Regression] Segmentation fault when instantiating class template with inner class which declares itself as a friend

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69323

--- Comment #6 from Jason Merrill <jason at gcc dot gnu.org> ---
Author: jason
Date: Wed Feb 24 19:55:45 2016
New Revision: 233679

URL: https://gcc.gnu.org/viewcvs?rev=233679&root=gcc&view=rev
Log:
        PR c++/69323 - valid

        * pt.c (instantiate_class_template_1): Set
        processing_template_decl before substituting friend_type.

Added:
    branches/gcc-5-branch/gcc/testsuite/g++.dg/template/friend61.C
Modified:
    branches/gcc-5-branch/gcc/cp/ChangeLog
    branches/gcc-5-branch/gcc/cp/pt.c