Update test

Add a comment describing what test4 does and change assert(0) to exit(1) in
check helper and also fix clang-format

Author: Hugh Delaney

sycl/source/detail/buffer_impl.cpp

@@ -84,7 +84,7 @@ buffer_impl::getNativeVector(backend BackendName) const {
     }
 
     pi_native_handle Handle;
-    Plugin->call<PiApiKind::piextMemGetNativeHandle>(NativeMem, /*Dev*/nullptr,
+    Plugin->call<PiApiKind::piextMemGetNativeHandle>(NativeMem, /*Dev*/ nullptr,
                                                      &Handle);
     Handles.push_back(Handle);
   }

sycl/source/detail/memory_manager.cpp

@@ -144,8 +144,8 @@ void memBufferCreateHelper(const PluginPtr &Plugin, pi_context Ctx,
       // Always use call_nocheck here, because call may throw an exception,
       // and this lambda will be called from destructor, which in combination
       // rewards us with UB.
-      Plugin->call_nocheck<PiApiKind::piextMemGetNativeHandle>(*RetMem, /*Dev*/nullptr,
-                                                               &Ptr);
+      Plugin->call_nocheck<PiApiKind::piextMemGetNativeHandle>(
+          *RetMem, /*Dev*/ nullptr, &Ptr);
       emitMemAllocEndTrace(MemObjID, (uintptr_t)(Ptr), Size, 0 /* guard zone */,
                            CorrID);
     }};
@@ -168,7 +168,8 @@ void memReleaseHelper(const PluginPtr &Plugin, pi_mem Mem) {
   // Do not make unnecessary PI calls without instrumentation enabled
   if (xptiTraceEnabled()) {
     pi_native_handle PtrHandle = 0;
-    Plugin->call<PiApiKind::piextMemGetNativeHandle>(Mem, /*Dev*/nullptr, &PtrHandle);
+    Plugin->call<PiApiKind::piextMemGetNativeHandle>(Mem, /*Dev*/ nullptr,
+                                                     &PtrHandle);
     Ptr = (uintptr_t)(PtrHandle);
   }
 #endif

sycl/test-e2e/HostInteropTask/interop-task-hip.cpp

@@ -26,8 +26,8 @@ void checkBufferValues(BufferT Buffer, ValueT Value) {
   for (size_t Idx = 0; Idx < Acc.get_count(); ++Idx) {
     if (Acc[Idx] != Value) {
       std::cerr << "buffer[" << Idx << "] = " << Acc[Idx]
-                << ", expected val = " << Value << '\n';
-      assert(0 && "Invalid data in the buffer");
+                << ", expected val = " << Value << std::endl;
+      exit(1);
     }
   }
 }
@@ -138,6 +138,8 @@ void test3(queue &Q) {
   });
 }
 
+// Test that SYCL RT models dependencies correctly when composing host tasks
+// with a parallel_for
 void test4(queue &Q) {
   buffer<int, 1> Buffer1{BUFFER_SIZE};
   buffer<int, 1> Buffer2{BUFFER_SIZE};