From 01e1df9ff6f1742b31a033fdb65c8ebb5ea0e983 Mon Sep 17 00:00:00 2001
From: Jason Merrill <jason@gcc.gnu.org>
Date: Wed, 4 Apr 2018 15:59:20 -0400
Subject: [PATCH] re PR c++/84221 (spurious -Wunused warning on a variable of a
 template type declared unused)

PR c++/84221
* g++.dg/warn/Wunused-var-32.C: Test explicit specialization.

From-SVN: r259106
---
 gcc/testsuite/g++.dg/warn/Wunused-var-32.C | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gcc/testsuite/g++.dg/warn/Wunused-var-32.C b/gcc/testsuite/g++.dg/warn/Wunused-var-32.C
index 5558f9361fc..8aaf381ffa6 100644
--- a/gcc/testsuite/g++.dg/warn/Wunused-var-32.C
+++ b/gcc/testsuite/g++.dg/warn/Wunused-var-32.C
@@ -2,8 +2,10 @@
 // { dg-additional-options -Wunused }
 
 template <class T> struct __attribute((unused)) A { };
+template <> struct A<char> { };
 
 void f (void)
 {
   A<int> a;   // shouldn't warn
+  A<char> ac; // { dg-warning "unused" }
 }              
-- 
2.11.4.GIT