diff --git a/libcxx/test/language.support/support.dynamic/new.delete/new.delete.array/new_array.pass.cpp b/libcxx/test/language.support/support.dynamic/new.delete/new.delete.array/new_array.pass.cpp
index b7cfdbeaf76f6dc9967ecba8d7150671d78e0e54..63f847f4d04ecb2336be4b228d26395327c7e492 100644
--- a/libcxx/test/language.support/support.dynamic/new.delete/new.delete.array/new_array.pass.cpp
+++ b/libcxx/test/language.support/support.dynamic/new.delete/new.delete.array/new_array.pass.cpp
@@ -35,7 +35,7 @@ int main()
     std::set_new_handler(new_handler);
     try
     {
-        void* vp = operator new[] (std::numeric_limits<std::size_t>::max());
+        void*volatile vp = operator new[] (std::numeric_limits<std::size_t>::max());
         assert(false);
     }
     catch (std::bad_alloc&)
diff --git a/libcxx/test/language.support/support.dynamic/new.delete/new.delete.array/new_array_nothrow.pass.cpp b/libcxx/test/language.support/support.dynamic/new.delete/new.delete.array/new_array_nothrow.pass.cpp
index 6537afe8b39b339b83ea12675272215a5d253053..60bc7c40928bcd79658f006e54c1ad69ec738e33 100644
--- a/libcxx/test/language.support/support.dynamic/new.delete/new.delete.array/new_array_nothrow.pass.cpp
+++ b/libcxx/test/language.support/support.dynamic/new.delete/new.delete.array/new_array_nothrow.pass.cpp
@@ -35,7 +35,7 @@ int main()
     std::set_new_handler(new_handler);
     try
     {
-        void* vp = operator new [] (std::numeric_limits<std::size_t>::max(), std::nothrow);
+        void*volatile vp = operator new [] (std::numeric_limits<std::size_t>::max(), std::nothrow);
         assert(new_handler_called == 1);
         assert(vp == 0);
     }
diff --git a/libcxx/test/language.support/support.dynamic/new.delete/new.delete.array/new_array_nothrow_replace.pass.cpp b/libcxx/test/language.support/support.dynamic/new.delete/new.delete.array/new_array_nothrow_replace.pass.cpp
index 3d836969eecdfd612f9fe203ebebba7882cfeb30..9bf6e8a8cebf9488d688773a3effd52dba4fffca 100644
--- a/libcxx/test/language.support/support.dynamic/new.delete/new.delete.array/new_array_nothrow_replace.pass.cpp
+++ b/libcxx/test/language.support/support.dynamic/new.delete/new.delete.array/new_array_nothrow_replace.pass.cpp
@@ -29,7 +29,7 @@ void  operator delete(void* p) throw()
     std::free(p);
 }
 
-int A_constructed = 0;
+volatile int A_constructed = 0;
 
 struct A
 {
diff --git a/libcxx/test/language.support/support.dynamic/new.delete/new.delete.array/new_array_replace.pass.cpp b/libcxx/test/language.support/support.dynamic/new.delete/new.delete.array/new_array_replace.pass.cpp
index c01945e98eec5a40ece359bd88458a3756503811..959bc450fa4fc825d2c8705a60f7309d62e3c306 100644
--- a/libcxx/test/language.support/support.dynamic/new.delete/new.delete.array/new_array_replace.pass.cpp
+++ b/libcxx/test/language.support/support.dynamic/new.delete/new.delete.array/new_array_replace.pass.cpp
@@ -15,7 +15,7 @@
 #include <cassert>
 #include <limits>
 
-int new_called = 0;
+volatile int new_called = 0;
 
 void* operator new(std::size_t s) throw(std::bad_alloc)
 {