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-rw-r--r--libcxx/test/support/test_macros.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/libcxx/test/support/test_macros.h b/libcxx/test/support/test_macros.h
index cee1419407b..46fcb66fecf 100644
--- a/libcxx/test/support/test_macros.h
+++ b/libcxx/test/support/test_macros.h
@@ -209,7 +209,8 @@ inline void DoNotOptimize(Tp const& value) {
#include <intrin.h>
template <class Tp>
inline void DoNotOptimize(Tp const& value) {
- const volatile void* volatile = __builtin_addressof(value);
+ const volatile void* volatile unused = __builtin_addressof(value);
+ static_cast<void>(unused);
_ReadWriteBarrier();
}
#endif
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