[Bug c++/81073] [5/6/7/8 Regression] link failure as C++ misses to instanciate some objects

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81073

--- Comment #6 from Jason Merrill <jason at gcc dot gnu.org> ---
Author: jason
Date: Mon Jun 19 18:20:48 2017
New Revision: 249383

URL: https://gcc.gnu.org/viewcvs?rev=249383&root=gcc&view=rev
Log:
        PR c++/81073 - constexpr and static var in statement-expression.

        * constexpr.c (cxx_eval_constant_expression) [DECL_EXPR]: Check
        potential_constant_expression.

Added:
    branches/gcc-7-branch/gcc/testsuite/g++.dg/ext/stmtexpr19.C
Modified:
    branches/gcc-7-branch/gcc/cp/ChangeLog
    branches/gcc-7-branch/gcc/cp/constexpr.c