/// <summary>
/// Checks if this control-flow graph contains an instruction
/// or basic block parameter with a particular tag.
/// </summary>
/// <param name="tag">The value's tag.</param>
/// <returns>
/// <c>true</c> if this control-flow graph contains a value
/// with the given tag; otherwise, <c>false</c>.
/// </returns>
public bool ContainsValue(ValueTag tag)
{
return(ImmutableGraph.ContainsValue(tag));
}
