Silence g++ 4.9 build issue in unit tests

Stopgap measure until we can just use static_assert().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198273 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/unittests/IR/ValueMapTest.cpp b/unittests/IR/ValueMapTest.cpp
index 5aaf905836285274c8fdce3351a22e02b935de63..cc844ba30b0b629a17250298bb2bb4ce5bdbf900 100644 (file)
--- a/unittests/IR/ValueMapTest.cpp
+++ b/unittests/IR/ValueMapTest.cpp
@@ -117,7 +117,8 @@ TYPED_TEST(ValueMapTest, OperationsWork) {
 
 template<typename ExpectedType, typename VarType>
 void CompileAssertHasType(VarType) {
-  typedef char assert[is_same<ExpectedType, VarType>::value ? 1 : -1];
+  LLVM_ATTRIBUTE_UNUSED typedef char
+  assert[is_same<ExpectedType, VarType>::value ? 1 : -1];
 }
 
 TYPED_TEST(ValueMapTest, Iteration) {