r261915 - in /branches/gcc-7-branch/gcc: cp/Cha...

[jakub@gcc.gnu.org]

Author: jakub
Date: Fri Jun 22 20:32:15 2018
New Revision: 261915

URL: https://gcc.gnu.org/viewcvs?rev=261915&root=gcc&view=rev
Log:
	Backported from mainline
	2018-03-08  Jason Merrill  <jason@redhat.com>
		    Jakub Jelinek  <jakub@redhat.com>

	PR c++/80598
	* call.c (build_over_call): In templates set TREE_USED (first_fn) when
	not calling mark_used for the benefit of -Wunused-function warning.

	* g++.dg/warn/Wunused-function4.C: New test.

Added:
    branches/gcc-7-branch/gcc/testsuite/g++.dg/warn/Wunused-function4.C
Modified:
    branches/gcc-7-branch/gcc/cp/ChangeLog
    branches/gcc-7-branch/gcc/cp/call.c
    branches/gcc-7-branch/gcc/testsuite/ChangeLog