[Bug c++/84080] [6/7/8 Regression] the compiler crashes when compiling the following sample file

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84080

--- Comment #2 from Jason Merrill <jason at gcc dot gnu.org> ---
Author: jason
Date: Tue Feb 13 15:57:00 2018
New Revision: 257630

URL: https://gcc.gnu.org/viewcvs?rev=257630&root=gcc&view=rev
Log:
        PR c++/84080 - ICE with return type deduction and specialization.

        * pt.c (determine_specialization): Check uses_template_parms.

Added:
    trunk/gcc/testsuite/g++.dg/cpp1y/auto-fn47.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/pt.c