[Bug c++/81045] [7/8 Regression] return type deduction causes dependent types?

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81045

--- Comment #3 from Jason Merrill <jason at gcc dot gnu.org> ---
Author: jason
Date: Sat Jun 17 02:28:25 2017
New Revision: 249323

URL: https://gcc.gnu.org/viewcvs?rev=249323&root=gcc&view=rev
Log:
        PR c++/81045 - Wrong type-dependence with auto return type.

        * pt.c (type_dependent_expression_p): An undeduced auto outside the
        template isn't dependent.
        * call.c (build_over_call): Instantiate undeduced auto even in a
        template.

Added:
    trunk/gcc/testsuite/g++.dg/cpp1y/auto-fn39.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/call.c
    trunk/gcc/cp/pt.c
    trunk/gcc/testsuite/g++.dg/cpp1y/auto-fn27.C