FindTailCalls.cs

private IList<Instruction> FindTailCalls(MethodDefinition method) 
{
  var calls = new List<Instruction>();
  foreach (var insn in method.Body.Instructions)
  {
    if (insn.OpCode == OpCodes.Call)
    {
      var methodRef = (MethodReference)insn.Operand;
      if (methodRef == method)
      {
        if (insn.Next != null && insn.Next.OpCode == OpCodes.Ret)
        {
          calls.Add(insn);
        }
      }
    }
  }
  return calls;
}