restoring asserts

Signed-off-by: Chris Perkins <[email protected]>

Author: cperkinsintel

sycl/source/detail/device_global_map_entry.cpp

@@ -17,6 +17,14 @@ namespace sycl {
 inline namespace _V1 {
 namespace detail {
 
+DeviceGlobalUSMMem::~DeviceGlobalUSMMem() {
+  // removeAssociatedResources is expected to have cleaned up both the pointer
+  // and the event. When asserts are enabled the values are set, so we check
+  // these here.
+  assert(MPtr == nullptr && "MPtr has not been cleaned up.");
+  assert(MInitEvent == nullptr && "MInitEvent has not been cleaned up.");
+}
+
 OwnedUrEvent DeviceGlobalUSMMem::getInitEvent(adapter_impl &Adapter) {
   std::lock_guard<std::mutex> Lock(MInitEventMutex);
   if (MInitEvent == nullptr)

sycl/source/detail/device_global_map_entry.hpp

@@ -33,7 +33,7 @@ using EventImplPtr = std::shared_ptr<sycl::detail::event_impl>;
 
 struct DeviceGlobalUSMMem {
   DeviceGlobalUSMMem(void *Ptr) : MPtr(Ptr) {}
-  ~DeviceGlobalUSMMem() = default;
+  ~DeviceGlobalUSMMem();
 
   void *const &getPtr() const noexcept { return MPtr; }