Examples of errors detected by the V3032 diagnostic

V3032. Waiting on this expression is unreliable, as compiler may optimize some of the variables. Use volatile variable(s) or synchronization primitives to avoid this.

Flax Engine

V3032 Waiting on this expression is unreliable, as compiler may optimize some of the variables. Use volatile variable(s) or synchronization primitives to avoid this. Dialog.cs 108

protected Window _window;
....
public DialogResult ShowDialog(Window parentWindow)
{
  // Show window
  Show(parentWindow);
  // Set wait flag
  Interlocked.Increment(ref _isWaitingForDialog);
    // Wait for the closing
  do
  {
    Thread.Sleep(1);
  } while (_window);                      // <=

  // Clear wait flag
  Interlocked.Decrement(ref _isWaitingForDialog);

  return _result;
}

IronPython and IronRuby

V3032 Waiting on this expression is unreliable, as compiler may optimize some of the variables. Use volatile variable(s) or synchronization primitives to avoid this. EngineTest.cs 2558

class DictThreadGlobalState {
  public int DoneCount;
  ....
}

private static void RunThreadTest(
  DictThreadGlobalState globalState) {
  ....
  globalState.DoneEvent.Reset();
  globalState.Event.Set();
  while (globalState.DoneCount != 0) {
    // wait for threads to get back to finish
  }
  ....
}

Xenko

V3032 Waiting on this expression is unreliable, as compiler may optimize some of the variables. Use volatile variable(s) or synchronization primitives to avoid this. SiliconStudio.Xenko.Debugger GameDebuggerTarget.cs 225

private bool requestedExit;
public void MainLoop(IGameDebuggerHost gameDebuggerHost)
{
  ....
  while (!requestedExit)
  {
    Thread.Sleep(10);
  }
}

PascalABC.NET

V3032 [CWE-835] Waiting on this expression is unreliable, as compiler may optimize some of the variables. Use volatile variable(s) or synchronization primitives to avoid this. RemoteCompiler.cs 407

CompilerState compilerState = CompilerState.Reloading;
....
public string Compile()
{
  ....
  compilerState = CompilerState.CompilationStarting;
  ....
  while (compilerState != CompilerState.Ready)
    Thread.Sleep(5);
  ....
}