diff --git a/libcxx/test/std/language.support/support.dynamic/new.delete/new.delete.array/new_array_nothrow_replace.pass.cpp b/libcxx/test/std/language.support/support.dynamic/new.delete/new.delete.array/new_array_nothrow_replace.pass.cpp
--- a/libcxx/test/std/language.support/support.dynamic/new.delete/new.delete.array/new_array_nothrow_replace.pass.cpp
+++ b/libcxx/test/std/language.support/support.dynamic/new.delete/new.delete.array/new_array_nothrow_replace.pass.cpp
@@ -17,24 +17,9 @@
 #include <cassert>
 #include <limits>
 
+#include "count_new.h"
 #include "test_macros.h"
 
-int new_called = 0;
-
-void* operator new(std::size_t s) TEST_THROW_SPEC(std::bad_alloc)
-{
-    ++new_called;
-    void* ret = std::malloc(s);
-    if (!ret) std::abort(); // placate MSVC's unchecked malloc warning
-    return  ret;
-}
-
-void  operator delete(void* p) TEST_NOEXCEPT
-{
-    --new_called;
-    std::free(p);
-}
-
 int A_constructed = 0;
 
 struct A
@@ -45,15 +30,17 @@
 
 int main(int, char**)
 {
+    globalMemCounter.reset();
+    assert(globalMemCounter.checkOutstandingNewEq(0));
     A *ap = new (std::nothrow) A[3];
     DoNotOptimize(ap);
     assert(ap);
     assert(A_constructed == 3);
-    assert(new_called);
+    assert(globalMemCounter.checkOutstandingNewNotEq(0));
     delete [] ap;
     DoNotOptimize(ap);
     assert(A_constructed == 0);
-    assert(!new_called);
+    assert(globalMemCounter.checkOutstandingNewEq(0));
 
   return 0;
 }
diff --git a/libcxx/test/std/language.support/support.dynamic/new.delete/new.delete.array/new_array_replace.pass.cpp b/libcxx/test/std/language.support/support.dynamic/new.delete/new.delete.array/new_array_replace.pass.cpp
--- a/libcxx/test/std/language.support/support.dynamic/new.delete/new.delete.array/new_array_replace.pass.cpp
+++ b/libcxx/test/std/language.support/support.dynamic/new.delete/new.delete.array/new_array_replace.pass.cpp
@@ -18,24 +18,9 @@
 #include <cassert>
 #include <limits>
 
+#include "count_new.h"
 #include "test_macros.h"
 
-int new_called = 0;
-
-void* operator new(std::size_t s) TEST_THROW_SPEC(std::bad_alloc)
-{
-    ++new_called;
-    void* ret = std::malloc(s);
-    if (!ret) std::abort(); // placate MSVC's unchecked malloc warning
-    return  ret;
-}
-
-void  operator delete(void* p) TEST_NOEXCEPT
-{
-    --new_called;
-    std::free(p);
-}
-
 int A_constructed = 0;
 
 struct A
@@ -46,15 +31,17 @@
 
 int main(int, char**)
 {
+    globalMemCounter.reset();
+    assert(globalMemCounter.checkOutstandingNewEq(0));
     A *ap = new A[3];
     DoNotOptimize(ap);
     assert(ap);
     assert(A_constructed == 3);
-    assert(new_called == 1);
+    assert(globalMemCounter.checkOutstandingNewEq(1));
     delete [] ap;
     DoNotOptimize(ap);
     assert(A_constructed == 0);
-    assert(new_called == 0);
+    assert(globalMemCounter.checkOutstandingNewEq(0));
 
   return 0;
 }
diff --git a/libcxx/test/std/language.support/support.dynamic/new.delete/new.delete.single/new_nothrow_replace.pass.cpp b/libcxx/test/std/language.support/support.dynamic/new.delete/new.delete.single/new_nothrow_replace.pass.cpp
--- a/libcxx/test/std/language.support/support.dynamic/new.delete/new.delete.single/new_nothrow_replace.pass.cpp
+++ b/libcxx/test/std/language.support/support.dynamic/new.delete/new.delete.single/new_nothrow_replace.pass.cpp
@@ -17,24 +17,9 @@
 #include <cassert>
 #include <limits>
 
+#include "count_new.h"
 #include "test_macros.h"
 
-int new_called = 0;
-
-void* operator new(std::size_t s) TEST_THROW_SPEC(std::bad_alloc)
-{
-    ++new_called;
-    void* ret = std::malloc(s);
-    if (!ret) std::abort(); // placate MSVC's unchecked malloc warning
-    return ret;
-}
-
-void  operator delete(void* p) TEST_NOEXCEPT
-{
-    --new_called;
-    std::free(p);
-}
-
 bool A_constructed = false;
 
 struct A
@@ -45,15 +30,17 @@
 
 int main(int, char**)
 {
+    globalMemCounter.reset();
+    assert(globalMemCounter.checkOutstandingNewEq(0));
     A *ap = new (std::nothrow) A;
     DoNotOptimize(ap);
     assert(ap);
     assert(A_constructed);
-    assert(new_called);
+    assert(globalMemCounter.checkOutstandingNewNotEq(0));
     delete ap;
     DoNotOptimize(ap);
     assert(!A_constructed);
-    assert(!new_called);
+    assert(globalMemCounter.checkOutstandingNewEq(0));
 
   return 0;
 }
diff --git a/libcxx/test/std/language.support/support.dynamic/new.delete/new.delete.single/new_replace.pass.cpp b/libcxx/test/std/language.support/support.dynamic/new.delete/new.delete.single/new_replace.pass.cpp
--- a/libcxx/test/std/language.support/support.dynamic/new.delete/new.delete.single/new_replace.pass.cpp
+++ b/libcxx/test/std/language.support/support.dynamic/new.delete/new.delete.single/new_replace.pass.cpp
@@ -16,24 +16,9 @@
 #include <cassert>
 #include <limits>
 
+#include "count_new.h"
 #include "test_macros.h"
 
-int new_called = 0;
-
-void* operator new(std::size_t s) TEST_THROW_SPEC(std::bad_alloc)
-{
-    ++new_called;
-    void* ret = std::malloc(s);
-    if (!ret) std::abort(); // placate MSVC's unchecked malloc warning
-    return ret;
-}
-
-void  operator delete(void* p) TEST_NOEXCEPT
-{
-    --new_called;
-    std::free(p);
-}
-
 bool A_constructed = false;
 
 struct A
@@ -44,15 +29,17 @@
 
 int main(int, char**)
 {
+    globalMemCounter.reset();
+    assert(globalMemCounter.checkOutstandingNewEq(0));
     A *ap = new A;
     DoNotOptimize(ap);
     assert(ap);
     assert(A_constructed);
-    assert(new_called);
+    assert(globalMemCounter.checkOutstandingNewEq(1));
     delete ap;
     DoNotOptimize(ap);
     assert(!A_constructed);
-    assert(!new_called);
+    assert(globalMemCounter.checkOutstandingNewEq(0));
 
   return 0;
 }
diff --git a/libcxx/test/std/localization/locale.stdcvt/codecvt_utf16.pass.cpp b/libcxx/test/std/localization/locale.stdcvt/codecvt_utf16.pass.cpp
--- a/libcxx/test/std/localization/locale.stdcvt/codecvt_utf16.pass.cpp
+++ b/libcxx/test/std/localization/locale.stdcvt/codecvt_utf16.pass.cpp
@@ -28,6 +28,7 @@
 
 int main(int, char**)
 {
+    globalMemCounter.reset();
     assert(globalMemCounter.checkOutstandingNewEq(0));
     {
         typedef std::codecvt_utf16<wchar_t> C;
diff --git a/libcxx/test/std/localization/locale.stdcvt/codecvt_utf8.pass.cpp b/libcxx/test/std/localization/locale.stdcvt/codecvt_utf8.pass.cpp
--- a/libcxx/test/std/localization/locale.stdcvt/codecvt_utf8.pass.cpp
+++ b/libcxx/test/std/localization/locale.stdcvt/codecvt_utf8.pass.cpp
@@ -28,6 +28,7 @@
 
 int main(int, char**)
 {
+    globalMemCounter.reset();
     assert(globalMemCounter.checkOutstandingNewEq(0));
     {
         typedef std::codecvt_utf8<wchar_t> C;
diff --git a/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.buffer/ctor.pass.cpp b/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.buffer/ctor.pass.cpp
--- a/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.buffer/ctor.pass.cpp
+++ b/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.buffer/ctor.pass.cpp
@@ -23,6 +23,7 @@
 
 int main(int, char**)
 {
+    globalMemCounter.reset();
     typedef std::wbuffer_convert<std::codecvt_utf8<wchar_t> > B;
 #if TEST_STD_VER > 11
     static_assert(!std::is_convertible<std::streambuf*, B>::value, "");
diff --git a/libcxx/test/std/localization/locales/locale/locale.members/combine.pass.cpp b/libcxx/test/std/localization/locales/locale/locale.members/combine.pass.cpp
--- a/libcxx/test/std/localization/locales/locale/locale.members/combine.pass.cpp
+++ b/libcxx/test/std/localization/locales/locale/locale.members/combine.pass.cpp
@@ -66,6 +66,7 @@
 int main(int, char**)
 {
 {
+    globalMemCounter.reset();
     {
         std::locale loc;
         std::locale loc2(loc, new my_facet);
diff --git a/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.alg/swap.pass.cpp b/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.alg/swap.pass.cpp
--- a/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.alg/swap.pass.cpp
+++ b/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.alg/swap.pass.cpp
@@ -59,6 +59,7 @@
 
 int main(int, char**)
 {
+    globalMemCounter.reset();
     assert(globalMemCounter.checkOutstandingNewEq(0));
     {
     std::function<int(int)> f1 = A(1);
diff --git a/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/F.pass.cpp b/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/F.pass.cpp
--- a/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/F.pass.cpp
+++ b/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/F.pass.cpp
@@ -62,6 +62,7 @@
 
 int main(int, char**)
 {
+    globalMemCounter.reset();
     assert(globalMemCounter.checkOutstandingNewEq(0));
     {
     std::function<int(int)> f = A();
diff --git a/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/F_assign.pass.cpp b/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/F_assign.pass.cpp
--- a/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/F_assign.pass.cpp
+++ b/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/F_assign.pass.cpp
@@ -65,6 +65,7 @@
 
 int main(int, char**)
 {
+    globalMemCounter.reset();
     assert(globalMemCounter.checkOutstandingNewEq(0));
     {
     std::function<int(int)> f;
diff --git a/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/copy_assign.pass.cpp b/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/copy_assign.pass.cpp
--- a/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/copy_assign.pass.cpp
+++ b/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/copy_assign.pass.cpp
@@ -49,6 +49,7 @@
 int g3(int, int, int) { return 3; }
 
 int main(int, char**) {
+  globalMemCounter.reset();
   assert(globalMemCounter.checkOutstandingNewEq(0));
   {
     std::function<int(int)> f = A();
diff --git a/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/copy_move.pass.cpp b/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/copy_move.pass.cpp
--- a/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/copy_move.pass.cpp
+++ b/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/copy_move.pass.cpp
@@ -52,6 +52,7 @@
 
 int main(int, char**)
 {
+    globalMemCounter.reset();
     assert(globalMemCounter.checkOutstandingNewEq(0));
     {
     std::function<int(int)> f = A();
diff --git a/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/nullptr_t_assign.pass.cpp b/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/nullptr_t_assign.pass.cpp
--- a/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/nullptr_t_assign.pass.cpp
+++ b/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.con/nullptr_t_assign.pass.cpp
@@ -50,6 +50,7 @@
 
 int main(int, char**)
 {
+    globalMemCounter.reset();
     assert(globalMemCounter.checkOutstandingNewEq(0));
     {
     std::function<int(int)> f = A();
diff --git a/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.mod/swap.pass.cpp b/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.mod/swap.pass.cpp
--- a/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.mod/swap.pass.cpp
+++ b/libcxx/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.mod/swap.pass.cpp
@@ -60,6 +60,7 @@
 int g3(int, int, int) { return 3; }
 
 int main(int, char**) {
+  globalMemCounter.reset();
   assert(globalMemCounter.checkOutstandingNewEq(0));
   {
     std::function<int(int)> f1 = A(1);
diff --git a/libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.enab/enable_shared_from_this.pass.cpp b/libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.enab/enable_shared_from_this.pass.cpp
--- a/libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.enab/enable_shared_from_this.pass.cpp
+++ b/libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.enab/enable_shared_from_this.pass.cpp
@@ -54,6 +54,7 @@
 
 int main(int, char**)
 {
+    globalMemCounter.reset();
     {  // https://bugs.llvm.org/show_bug.cgi?id=18843
     std::shared_ptr<T const> t1(new T);
     std::shared_ptr<T const> t2(std::make_shared<T>());
diff --git a/libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared/util.smartptr.shared.const/pointer_deleter_throw.pass.cpp b/libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared/util.smartptr.shared.const/pointer_deleter_throw.pass.cpp
--- a/libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared/util.smartptr.shared.const/pointer_deleter_throw.pass.cpp
+++ b/libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared/util.smartptr.shared.const/pointer_deleter_throw.pass.cpp
@@ -37,6 +37,7 @@
 
 int main(int, char**)
 {
+    globalMemCounter.reset();
     A* ptr = new A;
     globalMemCounter.throw_after = 0;
     try
diff --git a/libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared/util.smartptr.shared.const/pointer_throw.pass.cpp b/libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared/util.smartptr.shared.const/pointer_throw.pass.cpp
--- a/libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared/util.smartptr.shared.const/pointer_throw.pass.cpp
+++ b/libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared/util.smartptr.shared.const/pointer_throw.pass.cpp
@@ -37,6 +37,7 @@
 
 int main(int, char**)
 {
+    globalMemCounter.reset();
     A* ptr = new A;
     assert(A::count == 1);
     globalMemCounter.throw_after = 0;