[Bug c++/66260] [C++14] Failure to compile variable template with recursively defined partial specialization

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66260

--- Comment #4 from Jason Merrill <jason at gcc dot gnu.org> ---
Author: jason
Date: Thu Aug  6 04:10:01 2015
New Revision: 226657

URL: https://gcc.gnu.org/viewcvs?rev=226657&root=gcc&view=rev
Log:
        PR c++/66260
        PR c++/66596
        PR c++/66649
        PR c++/66923
        * pt.c (lookup_template_variable): Use NULL_TREE for type.
        (instantiate_template_1): Also set DECL_TI_ARGS based on
        the immediate parent.
        (tsubst_copy_and_build) [TEMPLATE_ID_EXPR]: Handle variable templates.
        (finish_template_variable): Add complain parm.
        * cp-tree.h: Adjust.

Added:
    branches/gcc-5-branch/gcc/testsuite/g++.dg/cpp1y/var-templ32.C
    branches/gcc-5-branch/gcc/testsuite/g++.dg/cpp1y/var-templ35.C
    branches/gcc-5-branch/gcc/testsuite/g++.dg/cpp1y/var-templ36.C
    branches/gcc-5-branch/gcc/testsuite/g++.dg/cpp1y/var-templ38.C
    branches/gcc-5-branch/gcc/testsuite/g++.dg/cpp1y/var-templ39.C
Modified:
    branches/gcc-5-branch/gcc/cp/ChangeLog
    branches/gcc-5-branch/gcc/cp/cp-tree.h
    branches/gcc-5-branch/gcc/cp/pt.c